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1
Kalischuk, Ruth Grant, e University of Lethbridge Faculty of Education. "Nurses' perception of death education". Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Education, 1992, 1992. http://hdl.handle.net/10133/49.
Testo completoAbstract (sommario):
The primary purpose of this study was to examine nurses including student nurses perceptions of death education in southern Alberta as one way of improving futrue nursing curricula. Five nurse subgroups were included, as follows: college and university students, hospital nurses, community nurses, and nurse educators. A questionnaire was developed and piloted prior to distribution to 450 nurses in six locations, including two urban and four rural sites, in southern Alberta. Completed, useable returns numbered 373 (83%). Descriptive statistics, ANOVA, and t-tests were used to analyze the data from scaled questionnaire items; content analysis was used to interpret written response items. Theoretical and conceptual frameworks were developed and utilized to guide the interpretation of findings. Generally, nurses perceived that existing death education remains inadequate as preparation for sound clinical nursing practice. Several statistically significant findings related to the provision of professional terminal care were reported amon the five nurse subgroups. Nurses identified concerns and deficits within existing nursing death educaiton and offered several
specific suggestions for improvement. The improvement of death education for nurses will most likely result in the delivery of safe, effective, quality nursing care practice to the dying person and family.xi, 160 leaves : ill., charts ; 28 cm.
2
Lam, Sze-man, e 林詩敏. "How does bilingual experience modulate visual processing?" Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47849976.
Testo completoAbstract (sommario):
Previous bilingual studies showed reduced hemispheric asymmetry in visual tasks such as face perception in bilinguals compared with monolinguals, which suggested that hemispheric asymmetry in visual tasks could be modulated by experience in reading one or two languages. Here I examined whether differences in hemispheric asymmetry in visual tasks can also be observed in bilinguals who have different language backgrounds. I compared the behavior of three language groups: (1) English monolinguals, who acquire only one alphabetic language, (2) European-English bilinguals, who know two alphabetic languages, and (3) Chinese-English bilinguals, who master an alphabetic language and a logographic language; in three tachistoscopic tasks: (1) English word sequential matching task, (2) Intact-altered face judgment task, and (3) face sequential matching task. The results showed that European-English bilinguals had a stronger right visual field (RVF)/ left hemispheric (LH) advantage in the English word sequential matching task than English monolinguals and Chinese-English bilinguals, suggesting that different language learning experiences can influence how visual words are processed in the brain. However, the results showed no group difference between the left visual field (LVF)/ right hemisphere (RH) advantage in the intact-altered face judgment task and the face sequential matching task. These results suggested a modulation of language experience on visual word processing but not on face processing. In addition, I showed that the hemispheric asymmetry in visual word processing could be accounted for by a computational model that implements a theory of hemispheric asymmetry in perception (i.e. the Double Filtering by Frequency theory, Ivry & Robertson, 1998); the modeling data suggested that this lateralization difference in visual word processing may be due to both the difference in participants’ vocabulary size and the difference in word-to-sound mapping between alphabetic and logographic languages.published_or_final_version
Psychology
Master
Master of Philosophy
3
Du, Plessis Christine Edna. "An existential-phenomenological explication of the older person's perception of anticipated death". Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1002070.
Testo completoAbstract (sommario):
This study attempts to explore, both theoretically and empirically, death anxiety across the lifespan in Western society. Six elderly women between the ages of 75 and 90 years were interviewed about their current perceptions and attitudes toward their anticipated deaths, and to what extent these perceptions may have altered over the course of the life cycle. It was hypothesized that an acceptance of religion and a belief in an afterlife existence; a sense of having experienced death before, in seeing loved ones die; and a feeling of having lived a meaningful life through the reminiscence of past events would all facilitate an older person's acceptance of anticipated death. An existential phenomenological explication of the protocols revealed that: religion need not necessarily play a major role in this regard; both the life reminiscence process and having experienced death before in seeing loved ones die facilitated acceptance of death; older persons are prepared for death in the sense of experiencing a feeling that their life cycles have been completed; although death may not be feared, many fears of dying are prevalent. It was thus concluded from this study that, although death is not a major preoccupation of the older person, it does still play a significant role in the lives of the elderly in that being aware of impending death allows the older person to regulate her life according to ̕̕̕̕̕ʾtime-left-to-liveʾ
4
Rau, James Carl. "Perception of verbal and nonverbal affective stimuli in complex partial seizure disorder". Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/186108.
Testo completoAbstract (sommario):
The present study addressed areas of empirical uncertainty regarding the perception of emotion by individuals with complex partial seizure (CPS) disorder focusing on a particular and controversial theoretic 'enhancement' model (Bear & Fedio, 1977). In the main, CPS groups did not differ from each other or from non-seizure neurologic (multiple sclerosis) or healthy control groups. The findings provided little support for the theoretic model, in terms of the following hypothesized CPS phenomena: (1) internal (self-awareness) and external (external stimuli) perceptual hyperemotionality, (2) emotional and behavioral hyperemotionality, and (3) a unique personality profile. Overall, rather than finding support for an enhancement model--relative to the emotion perceptual processing of patients with complex partial seizures, the current study provides data more consistent with a deficit model.
5
Quinn, Sandra. "The perception of time in music". Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/17763.
Testo completoAbstract (sommario):
This thesis is concerned with the perception of time in music with emphasis on tempo, emotion and time perception in music. Three studies were conducted to assess whether listeners were able to make consistent judgements about tempo that varied from piece to piece. Listeners heard short extracts of Scottish music played at a range of tempi and were asked to make a two alternative forced choice of 'too fast' or 'too slow' for each extract. The responses for each study were plotted as proportion too fast responses as a function of tempo for each piece, and cumulative normal curves were fitted to each data set. The point where these curves cross 0.5 is the tempo at which the music sounds right to the listeners, referred to as the optimal tempo. The results from each study show that listeners are capable of making consistent tempo judgements and that the optimal tempo varies across extracts. The results also revealed that rhythm plays a role, but not the only role in making temporal judgements. In the previous studies, it is possible that listeners might be using an average tempo from previously heard extracts to make every subsequent response. We wanted to assess this by presenting a single stimulus per participant and therefore remove any effects of the context on participant's responses. Using this technique we shall show that listeners can make 'too fast' and 'too slow' responses that are independent of previously heard extracts. In addition the data reveal similar results to those found in the first experimental chapter. The 3rd chapter deals with the effect of changes in the tempo of music on the perception of happy and sadness. Listeners heard short extracts of music that varied in tempo and were asked to make a 2AFC of happy or sad for each extract. Separate psychometric functions were obtained for each extract of music, and the points where these crossed 83% and 17% happy were calculated, and treated as happy tempo and sad tempo respectively. The results show that most extracts can be perceived as both happy and sad just by varying the tempo. However, the tempo at which extracts become happy or sad varies widely from extract to extract. We show that the sad and happy tempi are related to the size of the intervals (pitch changes) in the extract. In considering what might be involved in the perception of time in music we wanted to assess what effect small changes to a stimulus would have on perceived duration. We presented 2 auditory stimuli and show that the perceived duration of the test stimulus with a change in pitch increased as the size of the pitch change increased. The results are explained in terms of event strength where strong events cause perceived duration to increase whilst weak events are perceived to be shorter by comparison.
6
Kidd, Pamela Ann Stinson. "Trauma patients perception of the trauma experience". Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184756.
Testo completoAbstract (sommario):
A grounded theory study was conducted to identify, describe and provide a theoretical analysis of the conditions and events surrounding the occurrence of physical trauma. Research questions addressed were: What pattern of behavior is present in individuals prior to experiencing a motor vehicle collision (MVC)?; To what degree do trauma patients view themselves as active participants in a MVC that results in physical injury? Twenty one informants participated in the study. Theoretical sampling involved the use of a variety of sources of data. Vignettes, interviews, songs, commercials and automobile advertisements were triangulated with existing literature. Constant comparative analysis revealed a grounded theory of self protection. Self protection consists of three phases; perceptions of actual control over the environment, experiencing a traumatic event that signifies loss of control over their environment, and self protection to enhance perceptions of actual control over the environment post event. Controlling perceptions influenced use of protection devices and post trauma driving behavior. Self protection involved emotional focused and problem focused strategies similar to that described in the literature. Perceptions of actual control over the environment was not a static trait but appeared to be situationally dependent. The theory explained the behavior of the majority of the informants regardless of their mechanisms of injury; although patients with injuries resulting from violence were omitted from the study. Informants who viewed driving as a pleasurable action with unpredictable outcomes, as a form of risk taking behavior, did not identify self protection strategies post event. The other informants viewed driving as an unconscious, automatized behavior and denied engaging in risk taking prior to the MVC. Findings indicate the need to explore the social context of the American lifestyle and the image of the automobile when explaining self protective strategies. Automobile manufacturers provide the illusion of control over the environment in their advertisements perhaps negating the need for self protection. Rationale for not supporting mandatory protection for the use of seat belts and helmets was provided by the informants. Further testing with contrasting groups is indicated to determine the usefulness of the theory outside the trauma patient population.
7
Grabowecky, Marcia F. "Feature and conjunction information from brief visual displays". Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26822.
Testo completoAbstract (sommario):
The feature integration theory of object perception (Treisman & Gelade, 1980) suggests that the perception of multidimensional stimuli requires that attention be serially directed to the items in a visual display in order to correctly conjoin features into objects, while the perception of features does not require serial attention. Under conditions in which the serial focusing of attention is disrupted by reducing display duration, available information about conjunctions of two features should not exceed the independent information available about the constituent features. Three experiments using a partial report paradigm employing a location cue were conducted in order to test this prediction. Subjects viewed colored letter displays that varied in cue-display stimulus onset asynchrony. The dependent measure was accuracy of response. Results suggest that a small amount of information from a separate representation of conjunctions of features may be accessible.Arts, Faculty of
Psychology, Department of
Graduate
8
Leung, Anna Wing-han. "Social anxiety and perception of early parenting among American, Chinese American and social phobic samples : a test of etiological hypotheses". Thesis, Canberra, ACT : The Australian National University, 1991. http://hdl.handle.net/1885/141347.
Testo completo
9
Douglas, Wayde Percival. "Visual gaze behaviour of sub-elite cricket batsmen when facing fast in-swing and out-swing bowling". Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/16098.
Testo completoAbstract (sommario):
The primary aim of this study was to determine the visual gaze behaviour of sub-elite cricket batsmen when facing fast in-swing and out-swing bowling. To achieve the aim of this study, two main objectives were set: (1) to describe and compare the visual gaze behaviour of sub-elite cricket batsmen for both successful and unsuccessful trials irrespective of the ball faced; and (2) to describe and compare the visual gaze behaviour of sub-elite cricket batsmen for both in-swing and out-swing bowling trials irrespective of the outcome. The gaze behaviour characteristics were described and compared in terms areas of interest (AOI), number of fixations, duration of each fixation, starting and last fixation, and order of fixations. The study was pre-experimental in nature and utilised a quantitative approach. A One group post-test only design was followed in this study. A total of 13 batsmen were tested that met the inclusion criteria and were included in the study by means of purposive sampling. Four different variables were assessed: eye dominance, visual gaze behaviour, the speed of delivery and ambient light. No significant differences were found for the mean number and duration of fixations irrespective of the stroke outcome and the ball type faced. However, significant differences were obtained when specifically looking at the stroke outcome and the ball type faced. Results suggest that the AOI, upper body, arm/ ball release and pitch are considered as task relevant cues. Information appears to be acquired from the aforementioned AOI in a sequential manner to contribute to successful batting performance. In addition, batsmen should attempt to diminish the number of blinks at the end of trials to contribute towards more successful batting performance.
10
Radeau, Monique. "Interaction audio-visuelle et modularité = Auditory-visual interaction and modularity". Doctoral thesis, Universite Libre de Bruxelles, 1991. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212982.
Testo completo
11
Tyillian, Tammy A. "Reliability of regulating treadmill exercise using ratings of perceived exertion". Virtual Press, 1998. http://liblink.bsu.edu/uhtbin/catkey/1115425.
Testo completoAbstract (sommario):
Studies assessing the reliability of the Borg rating of perceived exertion (RPE) scale for regulating exercise training intensity have reported mixed results. Differences in experimental designs and analytical techniques make it difficult to compare results. The purpose of this study was to examine the reliability of perceptually-based treadmill (TM) exercise. Eleven subjects (42.5 ± 19.5 yrs) completed a maximal test (GXT) and 3 RPEproduction trials (PT) on a TM. Each PT consisted of two 10-minute bouts where subjects selected speeds and grades to elicit an intensity equated with an RPE of 11-12 (RPE-L) and RPE of 15-16 (RPE-H). Speed and grade, heart rate (HR), oxygen uptake (V02), and ventilatory equivalent for oxygen (VE/V02) were assessed throughout the GXT and the last 3 minutes of each PT. Blood lactate concentration (BLC) was assessed at RPE-L and RPE-H during the GXT and at the completion of each PT intensity. Reliability was assessed using an ANOVA with repeated-measures, intraclass correlations, and absolute differences (ABS A) across the PTs at each intensity. No significant meangroup differences were noted in any of the physiological variables at either intensity across the PTs. Reliability coefficients were higher for the selected workload and the metabolic measures than for HR or BLC. Reliability increased across trials for all measures, and as a function of intensity for V02 (L = 0.91 & H = 0.98), HR (L = 0.60 & H = 0.84), and BLC (L = 0.50 & H = 0.64). Mean ABS A evaluated the inter-trial reliability for HR (bpm) and V02 (METS) at the low intensity PT 1 vs. PT2 = 013 bpm; A3.3 METS, PT 1 vs. PT3 = 010 bpm ; A3.3 METS, and PT2 vs. PT3 = A7 bpm; 01.6 METS and the high intensity PT 1 vs. PT2 = 011 bpm; A2.5 METS, PT 1 vs. PT3 = 011 bpm; A3.4 METS, and PT2 vs. PT3 = A9 bpm; A2.2 METS, respectively. Mean ABS A decreased for HR and V02 between PT2 vs. PT3. These data suggest that reliability of perceptually-based TMexercise varies among physiological measures and various analytical techniques, and individual variation in physiological data across PTs should be considered prior torecommending RPE for the self-regulation of exercise.School of Physical Education
12
Canic, Michael John. "Perceptual and response organization of rhythmic patterns". Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28633.
Testo completoAbstract (sommario):
Four studies were undertaken to investigate the advance planning and perception of simple rhythmic patterns. Subjects listened to patterns of identical, computer-generated tones and then reproduced them as accurately as possible by tapping on a single response key. Section One focussed on the advance planning of isochronous rhythmic patterns in which subjects performed the additional task of initiating pattern reproduction as quickly as possible. In Experiment 1, subjects listened to patterns of one to six tones with interstimulus intervals (ISIs) of 300 ms. The reproduction phase involved no stimulus uncertainty. Reaction time (RT) was found to increase linearly with number of response events. Advance planning thus occurs for patterns reproduced as slow as 300 ms per response event. Stimulus uncertainty is not a necessary condition for RT to increase with response complexity. In Experiment 2, subjects reproduced patterns of one to eight tones with ISIs of 200, 400, 600, and 800 ms. A linear RT trend was found only at the 200-ms rate. Patterns slower than this rate did not display "response coherence". Patterns at the 200-ms and 400-ms rates showed evidence of grouping through the accenting of first and last intervals. These patterns' displayed "perceptual coherence". Section Two focussed on the perceptual organization of patterns in which pattern structures could suggest the grouping of events as two equal-duration intervals. In Experiment 3, subjects reproduced two series of patterns, one series in which the suggested grouping-intervals were initiated by external-world events, and one in which they were not. Pattern structures in the latter series were not suggestive enough to induce grouping of events as two equal-duration intervals. Patterns were instead grouped as two intervals of unequal duration showing that the relative temporal positions of external-world events dominates in simple perceptual grouping. Experiment 4 investigated the upper temporal limit of perceptual grouping intervals and the influence of number of group constituents. Results showed that perceptual grouping of events that span more than 1800 ms is seldom accomplished and that grouping occurs when intervals contain up to seven constituents.Graduate and Postdoctoral Studies
Graduate
13
Tsui, Sum-yin, e 徐心言. "Local motion in the image plane and in the stereo-depth plane distortsan object's perceived location and spatial arrangement". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B38610607.
Testo completo
14
Tso, Van-yip Ricky, e 曹宏業. "Motor experience modulates perceptual representation of objects: the case of Chinese characterrecognition". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48330103.
Testo completoAbstract (sommario):
Holistic processing and left-side bias are both behavioral markers of expert face recognition. In contrast, expertise in Chinese character recognition involves left-side bias but reduced holistic processing (Hsiao & Cottrell, 2009). Here I hypothesized that this reduction in holistic processing may be related to writing rather than reading experience. In Experiment 1, I tested Chinese literates who could read and write Chinese characters fluently (Writers), and Chinese literates who had limited writing practices and thus had reading performance far exceeding their writing ability (Limited-writers). I found that Writers perceived Chinese characters less holistically than Limited-writers. In contrast to what previous research suggested, reduction in holistic processing in Chinese readers depended on writing experience instead of reading performance. In addition, reading performance was affected by font familiarity and context for Limited-writers but not Writers. Writing experience seems to enhance analytic processing and awareness of orthographic components of Chinese characters, which may in turn facilitate reading in unfamiliar fonts. By contrast, both Writers and Limited-writers showed a similar level of left-side bias in processing symmetric Chinese characters, suggesting that left-side bias is a consistent expertise marker for orthographic processing uninfluenced by writing experience.
In Experiment 2, I investigate the developmental trend of holistic processing in Chinese character recognition and its relationship with reading and writing abilities by testing Chinese children who were learning Chinese at a public elementary school in Hong Kong on these abilities. I found that the holistic processing effect of Chinese characters in children was reduced as they reached higher grades; this reduction was driven by enhanced Chinese literacy rather than age. In addition, I found that writing performance predicts reading performance through reduced holistic processing as a mediator. Overall, the results of this study suggest that writing hones analytic processing, which is essential for expert Chinese character recognition, and in turn facilitates learning to read in Chinese. This study is also the first to identify Limited-writers as a window onto basic processes of reading.HKU 3 Minute Thesis Award, 2nd Runner-up (2012)
published_or_final_version
Psychology
Master
Master of Philosophy
15
Lo, On-ting, e 羅安庭. "Chinese character recognition : studies of complexity effect on recognition efficiency, spatial frequency characteristics, crowding and expertise". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/197116.
Testo completoAbstract (sommario):
Chinese characters are used by about one-fifth of the world population. Each character can generally be analyzed and represented at three orthographic levels including single stroke, component and whole character. Regardless of the number of strokes a Chinese character has, it always occupies a square area. Such special spatial layout leads to a great variation in stroke density, i.e., visual complexity, among Chinese characters. Here in this thesis, the effects of visual complexity on Chinese character recognition were examined to investigate the visual processing of Chinese characters in both central and peripheral vision.
Empirical findings from four psychophysical studies will be reported. First, the efficiency of detecting and recognizing Chinese characters of different complexity levels was studied. Human recognition of a more complex Chinese character was found to be generally less efficient than that of a simpler one. The relationship between efficiency and complexity had a log-log slope of approximately -1, suggesting that the basic features for recognizing a single Chinese character might be less complex than the simplest object used, which is a single stroke. Analysis results of the detection and recognition efficiency were consistent with a two-stage processing model of Chinese character recognition—feature detection followed by feature integration. Results in peripheral vision suggested that the feature integration process was adversely influenced by internal crowding.
Second, the spatial frequency characteristics of recognizing Chinese characters of different complexity levels were examined. The results showed that the peak tuning frequency for recognizing a more complex Chinese character was higher and the bandwidth of the spatial tuning functions was narrower than for recognizing a simpler character. In addition, the effects of size on such spatial frequency characteristics depended on the complexity level. The comparison of human performance against the corresponding performance of a CSF-limited ideal observer model implied that the processing mechanism of recognizing simple and complex characters was different. Moreover, similar results were observed among native Chinese and non-Chinese readers, suggesting that expertise might not influence front end processing properties such as the spatial frequency characteristics of Chinese character recognition.
Third, the importance of utilizing spatial frequency information of different orientations (i.e., horizontal versus vertical) in Chinese character recognition was investigated. Results showed higher efficiency in utilizing vertical than horizontal stroke information for Chinese character recognition among native Chinese readers whereas non-Chinese readers used both vertical and horizontal stroke information similarly.
Fourth, the effects of the target-flanker similarity in complexity on crowding in Chinese character recognition were examined. The results suggested that the behavior of feature integration process in peripheral vision might be consistent with summation theory, which stresses on the relationship between the processing capacity of neurons and the processing demand of stimuli. The “excessive feature integration explanation” of crowding was also discussed in the context of the current findings.
Building on previous research in the literature, results from the four studies in this thesis were synthesized in a proposal of a visual information processing model for Chinese character recognition.published_or_final_version
Psychology
Doctoral
Doctor of Philosophy
16
Mahon, Mary L. "Pain perception in chronic pain patients : a signal detection analysis". Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/31127.
Testo completoAbstract (sommario):
The purpose of this investigation was to examine the supposition that chronic pain patients (CPPs) have altered pain perception. Two models were examined that led to opposing predictions as to how CPPs would respond to painful stimuli (i.e., the hypervigilance and adaptation-level models). Both predictions have been supported by past research but because of methodological variation and the type of pain disorder studied, it has remained unclear under what circumstances the predictions of these two models may be met.
The responses of pain patients to painful stimuli have been found to vary for patients-with different clinical presentations (i.e. those with and without medically incongruent signs and symptoms). Therefore, the present investigation sought to compare the responses to radiant heat stimuli of sixty CPPs (thirty with and thirty without a medically incongruent pain presentation) to thirty age and sex matched normal control subjects (i.e., pain-tree individuals). Signal detection theory methodology was used in order to separately evaluate sensory sensitivity and the response bias to report sensations as painful. In addition, cognitive and affective factors were assessed in order to identity potential psychological correlates of altered pain perception.
The results of this study indicated that the presence of a medically incongruent pain presentation distinguished patients on their subjective report of disability and to a lesser extent cognitive appraisal and affective distress regarding their pain condition. They did not differ in their responses to painful stimuli. In a post hoc analysis where CPPs were classified into 'organic' and 'functional’ diagnostic groups, significant differences in pain threshold and the response bias to report pain were found. Patients classified as 'organic' had significantly higher pain thresholds compared to normal control subjects and patients classified as 'functional'. Differences in pain threshold were primarily represented by the response' bias to report sensations as painful rather than sensory sensitivity to the stimuli. The 'functional' group had a slightly lower pain threshold than the normal control group but this difference was not significant. The results are discussed in light of the two models of pain perception. The two methods used to classify pain patients are discussed according to their orthogonal characteristics on sensory, cognitive, and affective components.Arts, Faculty of
Psychology, Department of
Graduate
17
Batsakes, Peter James. "Retention of dual-task visual search : an age-related perspective". Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/29875.
Testo completo
18
Hays, Richard Roy. "Relationships between literacy level and job-related reading self concept". Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/478855.
Testo completoAbstract (sommario):
This study investigated relationships between literacy level and global self concept. employment status. income level, age. and gender among students enrolled at a vocational technical college. The contribution of a subset of job-related reading self concepts to the multiple correlation was also examined. The study sample consisted of 100 students in Related Education Courses at Indiana Vocational Technical College, Region VI. Muncie. Indiana. Subjects responded to three instruments and a demographic questionnaire. The Literacy Assessment Battery (Sticht. 1982) provided literacy levels, the Tennessee Self Concept Scale (Fitts. 1964) yielded global self concept, and the Hays Job-Related Reading Survey (Hays, 1986) indicated job-related reading self concepts. Piloting of Hays Job-Related Reading Survey Reliability and construct validity were sought using responses from a sample (N = 230) closely comparable to one selected for the study. An analysis revealed four interpretable factors:(a) Positive Employee Self, (b) Perceived Limitations of Self, (c) Perceived Importance of Occupational Literacy, and (d) Perceived Value of Company Notices. Further analysis yielded coefficient alpha reliabilities of r = .69 to r = .86.Results Significant relationships were found between literacy level and the following: (a) Global Self Concept (r .20, p<.04`; (b) Global Self Concept when combined with Perceived Limitations of Self, a factor from the Hays JobRelated Reading Survey (r = .56. p<.000+); and (c) Perceived Limitations of Self alone (r = .56, p<.000+).Conclusions Both Global Self Concept and Perceived Limitations of Self were significantly related to Literacy, both singly and in combination. The "best" (most efficient) predictor of Literacy Level could be gained by Perceived Limitations of Self alone. Additional research with adults is needed to confirm the findings and expand established research at younger ages. Educational suggestions focus on strengthening self concepts and occupational literacy of adults pursuing vocational training. Business should foster occupational literacy self concepts and employer-employee relationships in the workplace. Economic implications involved public and private sector support for long-term occupational literacy and job-related reading self concept programs which may yield more effective, productive employees.
19
Matlala, Mahlogonolo Maureen. "Societal perceptions towards the hearing impaired and their psychological implications". Thesis, University of Limpopo, 2013. http://hdl.handle.net/10386/1206.
Testo completoAbstract (sommario):
Thesis (M.A. (Clinical Psychology)) --University of Limpopo, 2013The study is aimed at investigating societal perception towards the hearing impaired and their psychological implications. The study concentrated on how the hearing impaired thought the hearing public perceived them and, also identified the psychological implications of these (perceived) societal perceptions on the hearing impaired. The research design is qualitative in nature, wherein, a convenient and purposive sample of ten hearing-impaired participants was used. Video recorded interviews of open-ended questions and questionnaires were used in combination to gather information. The Interpretative Phenomenological Analysis (IPA) was applied as the method of data analysis. Three super-ordinate themes were identified. These themes primarily indicated that the hearing impaired hold the view that they are negatively perceived by the hearing society. The findings of the study were that negative societal perceptions result in negative self-perceptions and discourage social interactions between the hearing impaired and the hearing communities.
20
DAVY, JEANETTE ANN. "PROCEDURAL JUSTICE, SITUATIONAL CONTROL AND SELF-PERCEPTION APPLIED TO UNDERSTANDING THE EFFECTS OF LAYOFFS ON SURVIVORS (PARTICIPATION, EQUITY, EQUALITY)". Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/188182.
Testo completoAbstract (sommario):
Procedural justice is applied to layoffs to study the effects of layoffs on survivors. Procedural norms, developed as components of procedural justice, are applied to develop two different layoff procedures, merit and random. The hypotheses come from this application as moderated by the individual's self-perception. Low performers prefer a procedural equality layoff, while high performers demonstrate no clear preference for either layoff procedure. When given the opportunity to choose a layoff procedure, the subjects having control over the layoff procedure to be used were no more satisfied with the process than those who had no control. Performance equity (merit) layoff. Subjects in this condition decreased performance, while the subjects in the other layoff conditions maintained performance levels.
21
Vines, Bradley W. "Seeing music : integrating vision and hearing in the perception of musical performances". Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=86058.
Testo completoAbstract (sommario):
This thesis investigates cross-modal interactions in auditory and visual perception, focusing on the perception of expressive musical performances. A primary aim of the work is to advance knowledge pertaining to how and when musicians' body movements influence an observer's overall experience. Three studies, comprising two multi-factor experimental investigations and one theoretical contribution, explore the multi-modal experience of musical performance. The two empirical chapters investigate, respectively, (1) the real-time experience of musical structure and musical emotion, comparing unimodal and multimodal conditions, and (2) the multidimensional structure of affective responses to musical performance, as a function of sensory modalities and performance intentions. The theoretical chapter develops a class of quantitative models for studying real-time phenomena in music (in particular) and time-series data (in general). An original contribution of this thesis is to quantify the ways in which the auditory and visual components of musical performance contribute singly and in interaction with one another to overall experience. The studies show that seeing a musician performing can augment, complement and interact with the auditory component to significantly influence music perception. These results are relevant to, and inform theories on, multi-sensory integration, emotion, and music cognition, as well as performance practice and audio-video media.
22
Chen, Jing, e 陈静. "An investigation of visual cues and the neural mechanisms on human motor control behaviour". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47849587.
Testo completoAbstract (sommario):
Accurate perception and control of self-motion is vital for human survival. Most
animals rely on vision for navigating through complex environments. In this
thesis, I investigated how vision influence perception and guide self-motion
from two aspects: (1) what visual information humans pick up from the
environment to form their perception and guide their self-motion; (2) how the
degeneration of the basal ganglia and cerebellum, the two largest subcortical
nuclei connecting the visual and motor areas of the brain, affect the controller’s
performance.
Study 1 examined the condition under which optic-flow information
beyond velocity field helps heading perception. I systematically varied the
amount of information in velocity field through manipulations of field of view
(FOV). The amount of optic-flow information beyond velocity field was
manipulated by two types of displays. I found heading bias increased with the
reduction of FOV only when optic-flow information beyond velocity field was
not available.
Study 2 investigated whether the information investigated in Study 1 is
sufficient and necessary for active control of heading. I used the similar display
simulations as study 1 with the exception that the vehicle orientation was
perturbed pseudo-randomly. Participants used a joystick, under both velocity
and acceleration control dynamics, to continuously rotate the vehicle orientation
back to its heading direction. The results showed that participants’ accurate
performance under condition that only provided velocity field information was
further improved when optic-flow information beyond velocity field was
available.
Study 3 examined the relative contributions of three visual cues (i.e.,
heading from optic flow, bearing, and splay angle) for lane-keeping control.
Observers controlled the car’s lateral movement to stay in the center of the lane
while facing two random perturbations affecting the use of bearing or splay
angle information. I found that performance improved with enriched flow
information. In the presence of splay angles, participants ignored bearing angle
information.
Study 4 investigated the roles of the basal ganglia and cerebellum in
motor control task using brain-damaged patients. Participant’s task was to use
the joystick to keep a blob in the center of the display while the horizontal
position of the blob was perturbed pseudo-randomly. This task is not a
self-motion task but mimics real-world lane-keeping control. Both the
Parkinson’s disease patients and cerebellar patients showed impaired motor
control performance in comparison with the healthy controls.
In conclusion, the visual information used for motor control in general
depends on the task. For traveling along a curved path, the velocity field
contains sufficient information for heading perception and heading control.
Optic-flow information beyond velocity field improves heading perception
when the velocity field does not contain sufficient information. It also helps
heading control when available. For lane-keeping control, adding optic flow
information improves participants’ performance. Splay angle information plays
a more important role than does bearing angle information. The visual
information used for motor control changes when certain brain areas are
damaged. Parkinson’s disease patients and cerebellar patients show the inability
to process visual input effectively for online motor control.published_or_final_version
Psychology
Doctoral
Doctor of Philosophy
23
Fleming, Mark Thomas. "Psychological aspects of risk and safety management in the UK offshore oil and gas industry". Thesis, Robert Gordon University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311797.
Testo completo
24
Beam, Roxanna Maria. "Transitive transformations or a house for dreams". Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/23376.
Testo completo
25
Gao, Dingguo, e 高定國. "Visual geometric properties in Chinese character processing: a behavioural and event-related potentialstudy". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B3124418X.
Testo completo
26
Chang, Yun-Ke. "Children's Color Association for Digital Image Retrieval". Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc4342/.
Testo completoAbstract (sommario):
In the field of information sciences, attention has been focused on developing mature information retrieval systems that abstract information automatically from the contents of information resources, such as books, images and films. As a subset of information retrieval research, content-based image retrieval systems automatically abstract elementary information from images in terms of colors, shapes, and texture. Color is the most commonly used in similarity measurement for content-based image retrieval systems. Human-computer interface design and image retrieval methods benefit from studies based on the understanding of their potential users. Today's children are exposed to digital technology at a very young age, and they will be the major technology users in five to ten years. This study focuses on children's color perception and color association with a controlled set of digital images. The method of survey research was used to gather data for this exploratory study about children's color association from a children's population, third to sixth graders. An online questionnaire with fifteen images was used to collect quantitative data of children's color selections. Face-to-face interviews investigated the rationale and factors affecting the color choices and children's interpretation of the images. The findings in this study indicate that the color children associated with in the images was the one that took the most space or the biggest part of an image. Another powerful factor in color selection was the vividness or saturation of the color. Colors that stood out the most generally attracted the greatest attention. Preferences of color, character, or subject matter in an image also strongly affected children's color association with images. One of the most unexpected findings was that children would choose a color to replace a color in an image. In general, children saw more things than what were actually represented in the images. However, the children's interpretation of the images had little effect on their color selections.
27
Lauffer, Patricia Louise 1961. "THE EFFECT OF GENDER, GENDER ROLE, AND WEIGHT TRAINING ON SELF-CONCEPT AND BODY CATHEXIS". Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276469.
Testo completoAbstract (sommario):
The purpose of this study was to examine the self-concepts and body cathexis of both males and females engaged in an eleven week weight training course and to examine if differences in gender role would influence the relationship of strength to self-concept and body cathexis. Each group (weight trainers versus controls) was administered the Tennessee Self Concept Scale, Bem Sex-Role Inventory, Eysenck Personality Inventory, and the Body Cathexis Scale. Strength measures were obtained. Group by gender ANOVA and ANCOVA examined differences between and among the groups and genders. Gender role by gender ANOVA and ANCOVA examined differences between and among the androgynous and masculine typed males and females. Multiple regression analyses were performed to examine the relationship of strength to body cathexis and self-concept. Results indicated pre- and post differences between and among the groups and genders and the genders and the gender roles.
28
Cheung, Kwok-ming Frankie. "The impact of various compositional principles on visual perception of advertising graphic design". HKBU Institutional Repository, 1997. http://repository.hkbu.edu.hk/etd_ra/153.
Testo completo
29
Ruggiero, Karen M. "The social psychological consequences of being a victim of discrimination : an analysis of perceived discrimination". Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40239.
Testo completoAbstract (sommario):
This doctoral thesis describes a program of research that investigated the social psychological consequences of being a victim of discrimination. A series of four experiments with women, Asians, and Blacks examined how disadvantaged group numbers perceive the discrimination that confronts them. These experiments first established that disadvantaged group members sometimes perceive discrimination but more often, minimize the discrimination that is directed at them personally. Second, the results explain why disadvantaged group members are inclined to minimize their personal experience with discrimination, Experiments 1 and 2 demonstrate that by minimizing discrimination, disadvantaged group members protect their state self-esteem in the social domain, and maintain the perception of control over social and performance outcomes in their lives. Experiment 3 indicates that when there is any ambiguity about having been discriminated against, disadvantaged group members who are low in performance self-esteem but higher in social self-esteem are especially inclined to minimize personal discrimination. Experiment 4 further reveals that disadvantaged group members who are high in performance perceived control and high in social perceived control are particularly prone to minimize discrimination in an achievement context. Thus, disadvantaged group members minimize the discrimination that confronts them because the consequences of doing so, are, on balance, psychologically beneficial. Three of the four psychological processes associated with minimizing personal discrimination are those typically linked with better psychological adjustment: high social self-esteem, high performance perceived control, and high social perceived control.
30
Elliott, Diana. "The impact of genetic counselling for familial breast cancer on women's psychological distress, risk perception and understanding of BRCA testing". University of Western Australia. School of Population Health, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0190.
Testo completoAbstract (sommario):
[Truncated abstract] Background: A review of the literature indicated there was a need for more long-term randomised controlled studies on the effects of BRCA counselling/testing on high risk women, including improved strategies for risk communication. Reviews have also shown women are confused about the significance of inconclusive or non informative results with a need for more research in this area. Aims: The general aim of this study was to evaluate the impact of breast cancer genetic counselling on psychological distress levels, perception of risk, genetic knowledge and understanding of BRCA testing/test results in a cohort of 207 women from high risk breast cancer families who were referred for genetic counselling in Perth during the period 1997 to 2001. Short- and long-term impact of BRCA genetic counselling/testing was determined in women with and without cancer in a randomised controlled trial as part of which women were randomised to either receive immediate versus delayed genetic counselling. This included family communication patterns before BRCA testing, anticipated outcomes of testing on oneself and family including intentions for result disclosure. Comprehension of index and predictive BRCA testing with possible results was assessed both in the short- and the long-term and understanding of individual or family BRCA test results was evaluated at long-term. The effect of genetic counselling on breast cancer risk perception in unaffected women was evaluated. This study considered a theoretical framework of educational learning theories to provide a basis for risk communication with possible relevance for future research. ... Only 25% of the original study population (52/207) reported BRCA results and women's understanding of results is concerning. Key findings were: 1. The majority of affected women received an inconclusive result. 2. Out of twelve unaffected women who reported results, seven were inconclusive which are not congruent with predictive testing. This implies that these women did not understand their test result. 3. A minority of untested relatives did not know whether a family mutation had or had not been found in their tested family member or what their actual test result was. This implies either a lack of disclosure or that woman did not understand the rationale for and significance of testing for a family mutation. 4. Three relatives did not understand a positive result was a mutation. Conclusion: The implication of this research for breast cancer counselling and testing services is that women who wait for counselling are no worse off in terms of short- or long-term general psychological distress than women who receive the intervention early. There is a suggestion that unaffected women without the disease found counselling more advantageous than affected women. The meaning of BRCA results as reported by women is concerning particularly women's understanding of negative and inconclusive results and further research is needed in this area. Too much information presented at counselling may affect women's comprehension of risk, BRCA testing and future test results and further research is required to evaluate the effects of information overload.
31
Brown, Steven Franklin. "An Investigation of Perception of a Frequency Modulated Band Location of Pitch Within a Musical Vibrato". Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc331039/.
Testo completoAbstract (sommario):
The purpose of this study was to investigate aspects of pitch perception of auditors when presented with musical tones whose frequencies were modulated. Research problems were: estimation of the effect of musical training upon pitch perception; estimation of the effect of stimuli of differing tonal qualities and frequency ranges upon perception; and estimation of the effect of solo and ensemble performances upon pitch perception. Subjects for the study were thirty musicians and thirty nonmusicians. Subjects were students at North Texas State University and Paris Junior College who had volunteered for the study. A test containing thirty-six items was developed which required subjects to match a tone created by a sawtooth wave generator to a simultaneously presented musical tone performed with vibrato. Each subject was tested individually, and allowed three attempts to match each test item. After the third playing of each item, a reading was taken of the frequency selected by the subject, Using the split half method, reliability for the test was found to be .86 for nonmusicians and .88 for musicians.
ANOVA evaluation of responses of subjects indicated that there was a significant difference.in the location of pitch among musicians and nonmusicians, with musicians locating the pitch somewhat higher in the frequency spectrum than nonmusicians. Neither group located the pitch of modulated musical tones at the geometric mean of the modulation. Differences located in responses of the groups were consistant with regard to stimuli of varying frequency levels and timbres, and were unaffected by either solo or ensemble performance of the stimulus. Subsidiary findings indicated that among musicians no significant differences in pitch perception may be traced to the major performing instrument of the subject; differences in these subgroups and nonmusicians were consistant with the findings comparing musicians as "a whole and nonmusicians. Suggestions were made concerning application of the findings to musical training and concerning possibilities for further investigation in perception of pitch.
32
Bardsley, Karen. "Out of sight : resemblance, illusion and cinematic perception". Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84465.
Testo completoAbstract (sommario):
In my thesis I develop a theory of our mental, physiological and emotional involvement with motion pictures that accounts for the distinct role of perception in our cinematic experiences. In particular, I present a (limited) resemblance view of cinematic perception and depiction that begins with an analysis of motion picture screenings as events in the world to which audience members share perceptual access and to which we can attribute complex visual and auditory properties. By understanding the precise nature of these properties and by understanding the mind's rich and dynamic relationship to visual and auditory stimuli, we can meet the demand of explaining the essential contribution of perception to our cinematic experiences. This positive theory is introduced through a philosophical and empirical critique of the work of several contemporary "cognitivist" film theorists who can been faulted for (i) falling into the traps of traditional illusion accounts, (ii) failing to account for the perceptual nature of our film experiences, or (iii) incorrectly characterizing the nature of our perceptual relationship to cinematic content.
33
Ramphomane-Aandahl, Bonolo. "Gaze behaviour of volleyball players during successful serve reception". Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1021007.
Testo completoAbstract (sommario):
The aim of this study was to identify and compare the gaze behaviour of both advancement levels (Advanced and Not Advanced) and genders (female and male) during successful serve reception. A quantitative, exploratory and quasi-experimental research design was used in which 50 ToppVolley Norway student athletes aged 16 to 19 years were sampled. The gaze behaviour of junior volleyball athletes was assesed as they received two types of serves (1 float and 1 top spin jump serve) and performed a forearm and/or overhead pass to a setter’s target while wearing an ASL mobile eye tracker. Gaze characteristics such as fixation number, fixation duration and areas of interest were used to achieve the aim of the study. The study found that Advanced participants differed from the Not Advanced athletes in employing fewer (9.70 ± 1.14 versus 10.77 ± 3.63 , p<.05, d>.20 ) fixations but for longer durations per fixations (1.64 ± 0.20 versus 1.60 ± 0.34, p<.05, d>.20 ) in receiving the float serve. Contrary, for the reception of the top spin jump serve, the Advanced athletes employed more fixations (12.11 ± 2.40 versus 11.83 ± 2.17, p<.05, d>.20 ) but for shorter durations per fixations (1.57 ± 0.26 versus 1.65 ± 0.34 sec, p<.05, d>.20 ) than the Not Advanced athletes. Male athletes in this study were more experienced than their female counterparts (5.97 ± 1.62 years versus 4.75 ± 1.59 years, p<.05, d>.20 ) with males employing more fixations than the females (11.02 ± 3.63 versus 9.19 ± 1.55 and 12.26 ± 2.46 versus 11.36 ± 1.69, p<.05, d>.20 ) for the float and top spin serves respectively but for shorter durations per fixation (1.62 ± 0.27 versus 1.76 ± 0.29 sec (float) and 1.56 ± 0.32 versus 1.73 ± 0.28 sec (top spin) p<.05, d>.20 ) than the female athletes. These results and findings suggests that Advanced athletes for both serves attended to the most appropriate visual information through the top-down approach, their knowledge and past experiences. For gender differences, the results show that the female athletes employed fewer fixation points in receiving float serves, however the employment of fewer fixation points during the top spin jump serves was due to receiving serves characterised by easily identifiable trajectories and lower speeds. The contradicting finding of the Advanced athletes employing more fixation points for the top spin jump serve may be due to task complexity demands. Thirteen areas of interests were also identified. The combined results for both gender and advancement levels suggest that the athletes fixated on similar areas of interests, primarily the upper body and secondary on the ball (flight), serve reception phase, arrival at target and contact point. The aim and objectives of this study were achieved in that both absolute and relative values for number of fixations, duration of fixations and areas of interest fixated on, were established. However the outcome of comparisons made, were not all expected particularly that of the Advanced group for the top spin jump serve. Possible explanations were offered, but further research is required in this regard.
34
湯旭瑜。 e Yuk-yue Tong. "Information organization and storage: the role of implicit theories". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31221737.
Testo completo
35
謝敏儀 e Mun-yee Mimi Tse. "The use of visual stimulation in pain management". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31244841.
Testo completo
36
Knowles, Kristen. "Evolutionary and cognitive approaches to voice perception in humans : acoustic properties, personality and aesthetics". Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/21784.
Testo completoAbstract (sommario):
Voices are used as a vehicle for language, and variation in the acoustic properties of voices also contains information about the speaker. Listeners use measurable qualities, such as pitch and formant traits, as cues to a speaker’s physical stature and attractiveness. Emotional states and personality characteristics are also judged from vocal stimuli. The research contained in this thesis examines vocal masculinity, aesthetics and personality, with an emphasis on the perception of prosocial traits including trustworthiness and cooperativeness. I will also explore themes which are more cognitive in nature, testing aspects of vocal stimuli which may affect trait attribution, memory and the ascription of identity. Chapters 2 and 3 explore systematic differences across vocal utterances, both in types of utterance using different classes of stimuli and across the time course of perception of the auditory signal. These chapters examine variation in acoustic measurements in addition to variation in listener attributions of commonly-judged speaker traits. The most important result from this work was that evaluations of attractiveness made using spontaneous speech correlated with those made using scripted speech recordings, but did not correlate with those made of the same persons using vowel stimuli. This calls into question the use of sustained vowel sounds for the attainment of ratings of subjective characteristics. Vowel and single-word stimuli are also quite short – while I found that attributions of masculinity were reliable at very short exposure times, more subjective traits like attractiveness and trustworthiness require a longer exposure time to elicit reliable attributions. I conclude with recommending an exposure time of at least 5 seconds in duration for such traits to be reliably assessed. Chapter 4 examines what vocal traits affect perceptions of pro-social qualities using both natural and manipulated variation in voices. While feminine pitch traits (F0 and F0-SD) were linked to cooperativeness ratings, masculine formant traits (Df and Pf) were also associated with cooperativeness. The relative importance of these traits as social signals is discussed. Chapter 5 questions what makes a voice memorable, and helps to differentiate between memory for individual voice identities and for the content which was spoken by administering recognition tests both within and across sensory modalities. While the data suggest that experimental manipulation of voice pitch did not influence memory for vocalised stimuli, attractive male voices were better remembered than unattractive voices, independent of pitch manipulation. Memory for cross-modal (textual) content was enhanced by raising the voice pitch of both male and female speakers. I link this pattern of results to the perceived dominance of voices which have been raised and lowered in pitch, and how this might impact how memories are formed and retained. Chapter 6 examines masculinity across visual and auditory sensory modalities using a cross-modal matching task. While participants were able to match voices to muted videos of both male and female speakers at rates above chance, and to static face images of men (but not women), differences in masculinity did not influence observers in their judgements, and voice and face masculinity were not correlated. These results are discussed in terms of the generally-accepted theory that masculinity and femininity in faces and voices communicate the same underlying genetic quality. The biological mechanisms by which vocal and facial masculinity could develop independently are speculated.
37
Allen, Bruce W. (Bruce Wayne) 1958. "Interpersonal Perception and Communication within Marital Dyads". Thesis, University of North Texas, 1992. https://digital.library.unt.edu/ark:/67531/metadc278953/.
Testo completoAbstract (sommario):
The present study examined the relationships among similarity, interpersonal perception and communicative behaviors in marriage. It was hypothesized that greater understanding, feelings of being understood, and realization of understanding would be associated with greater self-disclosure, use of more direct person control strategies, and use of less attention control strategies. It was further hypothesized that measuring feelings of being understood and realization of understanding, in addition to measuring understanding, would improve prediction of behavior. Finally, it was hypothesized that the contextual measure of understanding would better predict self-disclosure and interpersonal control than would global measures of understanding.
38
Hayat, Roshanai Afsaneh. "Psychological and Behavioral Aspects of Receiving Genetic Counseling for Hereditary Cancer". Doctoral thesis, Uppsala universitet, Vårdvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-128870.
Testo completoAbstract (sommario):
The overall aims of this thesis were to investigate psychological and behavioral effects of receiving cancer genetic counseling for breast, ovarian and colorectal cancer and/or with a family history of these cancer types and to determine whether counselees’ informational needs were met. Study I was performed 3-7 years post-counseling. Participants (n=214) reported a relatively high level of anxiety but a low level of depression compared to cancer patients in general. However, there was no indication that the distress experienced was due to the counseling. Moderate changes in life and family relations, high level of adherence to recommended controls and satisfaction was reported. Study II was a randomized control trial (RCT) intervention study which involved 147 counselees. An increase in the level of knowledge and correct estimation of personal risk was reported in both the intervention and control groups, although this increase declined at later follow-up. Enhanced information led to significantly greater satisfaction with the given information, and the way of informing relatives. Most counselees had shared information with their at-risk relatives. Study III focused on sharing information with at-risk relatives among participants in study II and their relatives (n=81). Counselees were interviewed and answered a questionnaire, whilst their relatives only answered the questionnaire. Counselees reported positive/neutral feelings about communicating genetic information and mostly interpreted their relatives’ reactions as positive/ neutral. Also, approximately 50% of relatives reported positive/neutral reactions and were generally satisfied with the received information. Study IV was conducted in Sweden and Norway based on 235 counselees. Counselees expected counselors to be skillful and thoughtful, take them seriously and provide risk estimations and medical information. Most important issues to counselees were satisfactorily addressed by the counselors. Analyzing importance rankings resulted in five categories of needs: a need for facts, caring communication and medical information, need for understanding and support in sharing genetic information, practical care and medical/practical information. In conclusion, no adverse psychological or behavioral effect on counselees was observed. Apparently, genetic counseling is managed properly and counselors successfully address counselees’ needs. Providing extended information does not seem necessary, however, tailoring information to individual counselees needs may create a more effective counseling.
39
Ruggiero, Karen M. "The social psychological consequences of being a victim of discrimination". Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26076.
Testo completoAbstract (sommario):
This thesis describes a program of research aimed at examining the social psychological consequences of being a victim of discrimination. An experimental paradigm was developed to determine if, and to what extent, disadvantaged group members perceive the discrimination that confronts them. Women were asked to react to negative feedback after receiving information about the probability that they had been discriminated against. When discrimination was made ambiguous, subjects minimized their personal experience with discrimination and attributed their failure to themselves. A second experiment investigated the role of perceived control as a potential cause of minimization of personal discrimination. The results indicated that disadvantaged group members were reluctant to blame their performance on discrimination because in so doing, they were placing control for their outcomes in the hands of others rather than themselves. The findings are discussed in terms of their implications for the on-going victimization of disadvantaged group members.
40
Gill, Tripat. "Composite products as conceptual combinations : issues of perception, categorization and brand evaluation". Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38486.
Testo completoAbstract (sommario):
This dissertation addresses the issues pertaining to composite products (CPs). CPs are defined as products formed by combining knowledge from two distinct domains, for example, digital cameras, which combine knowledge from digital products and cameras. The three research questions addressed in the dissertation are: (1) how is knowledge combined from two distinct domains of a CP, (2) how are CPs categorized vis-a-vis their two components, and (3) what brands, among those associated with one of the two domains, are preferred in CPs? The thesis here is that CPs can be construed as conceptual combinations---that is, a combination of two concepts, wherein one concept (the "modifier") modifies the knowledge associated with the other (the "header"). Employing the literature in psycholinguistics, two combinatorial processes---namely, property mapping and relation linking---were identified for combining knowledge in CPs. These processes lead to modifications in knowledge associated with the header of a CP (e.g., knowledge about cameras is modified in digital cameras). The extent of these modifications is measured by the proposed construct of modification centrality. As per this construct, modifications in features critical to the function of a header (i.e., central modifications) are perceived as more significant than those in non-critical features (i.e., non-central modifications).Three experimental studies investigated the above research questions. These studies used 16 novel CPs that were created by combining two dissimilar concepts. Study 1 showed that subjects readily combined knowledge from two dissimilar domains, using property mapping or relation linking. In addition, the representation of these CPs varied along their modification centrality, even though the dissimilarity between the two combining domains was held constant. Study 2 showed that the categorization of CPs was contingent upon their similarity to the modifier and header categories. Study 3 showed that both modification centrality and the combinatorial process influenced the categorization and brand preferences in CPs. While CPs with non-central modifications (e.g., disposable cameras) were categorized as headers (i.e., cameras), and header-associated brands were preferred, those with central modifications (e.g., digital cameras) were categorized as both (i.e., digital product and camera), and the modifier brands (i.e., digital brands) gained equity.
41
Fok, Yam Kate Andrea, e 霍蔭芪. "Perception of parental control and its role in Chinese children's academic motivation". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/209701.
Testo completoAbstract (sommario):
The construct of parental control and its role in influencing children’s motivation in collectivistic cultures have been hotly debated. Two studies examined Hong Kong Chinese children’s perception of parental control and its relation with their academic motivation with sociocultural considerations. In Study 1, children (n = 24) were invited to participate in a focus group to report what parental control meant to them. The qualitative data obtained in the discussion were then used to construct questionnaires for investigating the perception of children from different income groups towards low and high level of parental controlling behaviors in Study 2. Children (N = 294) from lower and higher income groups were randomly assigned to complete the questionnaires consisting of either low or high control scenarios. Results indicated that children from different income families viewed parental control similarly. Mild forms of controlling behaviors were considered as signs of love and care, while intense forms were perceived as signs of control. Interaction effects were found for children’s perceived level of love and control towards the behaviors depicted in the scenarios and their mothers’ frequency of performing those behaviors in real life on their academic motivation. The present research provided a clearer conceptualization of the construct of parental control in Chinese societies and supported the applicability of the self-determination theory in the Hong Kong context.published_or_final_version
Educational Psychology
Master
Master of Social Sciences
42
Davidson, Kelly Patricia. "On unifying the laws of sensation : an empirical investigation of predictions arising from Norwich's theory of perception". Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29594.
Testo completoAbstract (sommario):
The present thesis constitutes an empirical investigation of the prediction of Norwich's Entropy Theory of Perception that the positive exponent of the magnitude estimation power function and the negative exponents of equations relating the Weber fraction and simple reaction time to stimulus intensity should, since they can all be derived from the theory's Fundamental Equation, be numerically the same.
A pilot study consisting of magnitude estimation and reaction time experiments (using pure tone auditory stimuli of varying intensities at five frequencies), and a "main" study comprised of magnitude estimation, reaction time, and Weber fraction experiments are described.
The results, while offering possible confirmation of the prediction, remain somewhat tentative, owing to the persistently problematic technique of curve fitting upon which determination of the reaction time and Weber fraction exponents rests.
The theory, in leading one to even attempt to compare such previously unrelated measures as magnitude estimation and reaction time with Weber fractions, has yielded, theoretical issues aside, some worthwhile empirical results: I have obtained measures on three different psychophysical tasks from the same subjects over (effectively) the same stimulus range for each of those subjects; and, moreover have, I believe for the first time, explicitly noted that the Weber fraction displays the same decrease in exponent with increasing frequency, followed by an upturn at the highest frequencies, that characterizes both the equal loudness curves and the reaction time curves a la Chocholle. Suggestions are made regarding supplementary curve fitting methods by which to analyze these data, as well as for future research in the psychophysiological realm which, in addition to expanding the scope of the prediction that is being tested, may provide some much needed insight into the numerical values of the multiplicative and additive constants that occur in the equations under consideration in this thesis.Arts, Faculty of
Psychology, Department of
Graduate
43
Moore, Steven Douglas. "Leisure stereotypes: Person perception and social contact norms in a wilderness area". Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184726.
Testo completoAbstract (sommario):
Social contact norms are used by managers to establish standards for regulating visitation of wilderness areas so that visitors can attain adequate experiences of solitude. This study expanded on current conceptions of social contact norms to provide a theoretical and empirical basis for understanding how such norms are formed. Using person perception, stereotyping, and socialization theory and the concept of cognitive schemata, a conceptual framework was built to explain how visitors come to judge certain groups as appropriate or inappropriate in a wilderness area. Seven research hypotheses were proposed and tested using a database consisting of responses to a mail questionnaire survey of 800 permit requestors and 95 interviews with visitors at Aravaipa Canyon Wilderness, Arizona. The first hypothesis, that wilderness visitors would regard some types of groups as appropriate and other types of groups as inappropriate in the wilderness area, was supported. Norms for encountering 13 types of groups were estimated from written questions and drawings, and paired picture comparisons allowed ranking of six types of groups. Encounters with lone hikers, small groups, medium-sized groups, birdwatchers, youth groups, school classes, and rangers were considered more appropriate than encounters with hunters, horseback riders, packstock users, and nude bathers. Logit and multinomial logit models were used to test the six remaining hypotheses, which concerned the influences of socialization and other processes on development of social contact norms. To test the hypotheses, norms for encountering six types for groups were predicted from demographic and other variables. The results indicated that norms for encountering small groups were not affected by social class or race; affiliation with a small group during a wilderness visit was associated with a dislike of large groups, membership in a conservation organization had no such association; members of conservation organizations preferred fewer encounters with hunters; membership in a conservation organization also prompted the respondents to dislike encounters with horseback riders; females, older visitors, and people with children disliked encountering nude bathers; and inexperienced and less self-reliant visitors enjoyed encounters with rangers. Theoretical, managerial, and social implications of these results were then discussed.
44
Gordon, Roberta June. "Pregnant women's perception and application of health promotion messages at community health centres". Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&.
Testo completoAbstract (sommario):
Studies have shown that pregnant women do understand and value information of their unborn child. However, those providing health promotion services often focus on medical procedures and health education messages, ignoring the cultural, socio-economic and psychological dimensions that impact on women's health. This research aimed to look at a specific component of health promotion, i.e. health promotion messages shared with pregnant women attending Stellenbosch and Klapmuts Community Health Centre Antenatal Health Promotion Programme and their perceptions of how they apply messages in their daily lives.
45
Cho, Kam-fung, e 曹金鳳. "The impact of parental divorce on adolescents' perception of heterosexual relationship". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31978046.
Testo completo
46
Gerstley, Lawrence D. "Cross-modal and synaesthetic perception in music and vision". Thesis, University of Stirling, 1997. http://hdl.handle.net/1893/2223.
Testo completoAbstract (sommario):
This thesis is concerned with the cross-modal and synaesthetic perception of musical and visual stimuli. Each of these types of perception has been researched separately, and a hypothesis is presented here that accounts for both cross-modal matching and the development of synaesthesia. This hypothesis claims that sensory information can be evaluated in another modality by using a scale of comparison in that modality. The first set of experiments examines normal subjects performing cross-modal matching with coloured circles and auditory stimuli that vary in complexity. It is shown that subjects use a variety of scales of comparison from both visual and auditory modalities to form matches. As the stimuli increase in complexity, the individual variation in cross-modal matching also increases. The second set of experiments examines matching performance using higher order stimuli, by having subjects evaluate fragments of melodies and complete melodies on affective and descriptive adjective scales. Melodies were also matched with landscape scenes to examine if subjects could form matches between two highly complex sets of stimuli. The final experiments examine synaesthetic associations with colour, evoked from music, letters, numbers, and other categorical information. Common features of synaesthesia from a population of synaesthetes are identified, and experiments performed to test the interference of the synaesthetic associations. Additional experiments are presented that explore the superior short-term memory of one synaesthete, and the role of his associations as a mnemonic device.
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Lo, Shuk-fun Jess, e 盧淑芬. "Death-myth or reality: an exploratory study on death and bereavement perception among Chinese bereaved who losethe loved one in critical care unit". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31972986.
Testo completo
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Walsh, Maureen C. "The predictive value of psychological type and self-monitoring on emergent leadership". Thesis, Virginia Tech, 1992. http://hdl.handle.net/10919/40669.
Testo completo
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Martin, Fiona Barbouttis. "Self-understanding in high-functioning males with autism spectrum disorders : relationship with social functioning and theory of mind". University of Sydney, 2009. http://hdl.handle.net/2123/4990.
Testo completoAbstract (sommario):
Doctor of PhilosophyAim. This study aims to investigate self-understanding in young males with high-functioning autism spectrum disorders (ASD) and to determine whether self-understanding is related to social functioning and theory of mind (ToM). In addition, this study aims to examine the characteristics and abilities of young males with high-functioning autism (HFA) and Asperger’s disorder (AD) to determine whether there are significant differences in selfunderstanding and whether self-understanding is related to social functioning and ToM between these two groups. The results have important implications for social skills interventions for young people with ASD. Method. Forty three young males diagnosed with one of the ASD (25 diagnosed with HFA and 18 diagnosed with AD) were compared with 38 TD males. Participants were assessed using the Autism Diagnostic Interview- Revised (ADI-R), the Kaufman Brief Intelligence Test (KBIT), the Vineland Adaptive Behavior Scales (VABS), the Peabody Picture Vocabulary Test- Third Edition (PPVT-III), Damon and Hart’s Self-understanding Interview, and two false-belief ToM tasks. Results. Children with ASD had difficulties recognising and attributing their own mental states and failed to integrate various aspects of the self. Specifically, the ASD group produced fewer self-statements that reflected agency (the awareness and understanding that one is in control of their actions), social aspects of self (such as personality characteristics and group membership) and psychological aspects of self (such as emotions, thoughts and cognitive processes). Instead, children with ASD produced more concrete physical self-statements (such as body characteristics and material possessions). A significant positive relationship was found between selfunderstanding and social functioning for the ASD group. Within the ASD group, the relationship held for the HFA group only. In terms of ToM, children with ASD were less able to correctly answer the second-order false-belief ToM question compared to the TD group. For the ASD group, there was a significant positive correlation between self-understanding and ToM. Within the ASD group, the relationship held for the HFA group only. Conclusions. The results show young males with high-functioning ASD are less aware of their own and others’ mental states perhaps reflecting a general delay in the development of self-understanding and ToM. Furthermore, a more developed self-understanding may translate to improved social functioning and ToM ability for young males with high-functioning ASD. For young males with HFA, self-understanding and ToM may stem from a common underlying cognitive framework. Consequently, treatments aimed at improving self-understanding may simultaneously improve ToM, or vice versa. For individuals with AD there may be a separate cognitive mechanism responsible for self-understanding and another for ToM. Therefore, different interventions may be required; one to improve self-understanding and another to improve the understanding of others’ minds. Overall, these results may assist in the development of practice parameters for social skills training for those with ASD.
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Lapthorn, Barbara. "Analyse conceptuelle et méthodologique de l'incertitude perçue dans le travail et sa gestion". Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209621.
Testo completoAbstract (sommario):
L’incertitude au travail peut provenir de l’ambiguïté de rôle, de la variation des conditions de travail, des doutes que le travailleur peut avoir à propos de la pertinence de ses activités, etc. La contribution majeure de cette thèse a été de développer et valider un questionnaire permettant d’évaluer la perception de l’incertitude au travail comme renvoyant pour l’individu à des aspects usants (gêne, difficulté à prendre position, anxiété), mais également constructifs (stimulant les perspectives de changement, les opportunités d’apprentissage et de développement personnel), ainsi qu’à des stratégies permettant de gérer l’incertitude par le contrôle, l’évitement, ou la recherche d’une réassurance auprès d’autrui. Une série d’entretiens a également permis de relever d’autres stratégies propres à la vision constructive de l’incertitude permettant aux travailleurs de la gérer d’une façon proactive./Uncertainty at work may originate from role ambiguity, variations in the work conditions, unforeseen and unexpected events, or even from doubts that the worker may have about the relevance of his/her own activities. The major contribution of this thesis was to develop and validate the Uncertainty at Work Questionnaire (UnWoQ) which highlights how employees perceive uncertainty either in a damaging or in a constructive way, and how they tend to cope with it using strategies of control, avoidance and reassurance. We finally suggested some other strategies in relation with the constructive sides of uncertainty that help employees to cope with it in a proactive way.Doctorat en Sciences Psychologiques et de l'éducation
info:eu-repo/semantics/nonPublished