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Dissertations / Theses on the topic 'Right brain'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 February 2023

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1

Griffin, Velda L. "Right Brain Study." UNF Digital Commons, 1985. http://digitalcommons.unf.edu/etd/24.

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The purpose of this study is to show that instructional methods designed for right-brained students will make a significant difference in the reading achievement scores of the students when compared with the scores of right-brained sixth grade students not receiving these instructional methods.The subjects were sixth grade students who use the right hemisphere of the brain to a greater degree than the left hemisphere. The subjects' cerebral preference was determined by a test known as the Cerebral Preference Index (CPI). Ten students each were chosen from two sixth grade classes. The study consisted of a Control Group and Experimental Group. During the study the Control Group received eight weeks of the regular school's program while the Experimental Group received eight weeks of instructional strategies that take hemispheric specialization into consideration. The results indicated that there was no significant difference in the reading achievement scores of those students who received the instructional methods designed for right brained students. The analysis of data did suggest that those scoring high on the pre-test scored high on the post test. The results indicated the same outcome for low scorers.

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2

Woody, Christine Buchanan. "Right-brain/left-brain communication in the church." Theological Research Exchange Network (TREN), 2007. http://www.tren.com/search.cfm?p064-0137.

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3

Dellorto, Victoria. "Brain Workout| How Right and Left Brain Integration Activities Affect Maladaptive Behaviors." Thesis, Trinity Christian College, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10814650.

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The purpose of this quantitative, single-subject research was to examine the effects of hemisphere integration on maladaptive behaviors as measured by the BASC-III assessment. Morgan and Sideridis report that problem behavior rates in United Schools range from 10-30% and 92% of teacher respondents identified that problem behaviors have worsened over their careers (2013). Research has been done on the importance of neuroscience in the field of education, but there is a gap between the research and application. Baseline data on the targeted behaviors was collected by administering the BASC-III Teacher Rating Scale (TRS) on the participant to two special education teachers and a general education teacher, as well as, having the participant independently fill out the Self-Report of Personality (SRP). The student then engaged in two daily integrated hemisphere activities in the form of a Tell Me Activity. Data was collected on the frequency of errors and the duration of that activity. The intervention was administered for 30 trials. After the 30 trials, all participants were then given the BASC-III assessment again. Pre and Post BASC-III T Scores were compared to determine student growth. The participant showed growth in 20 out of 45 BASC-III categories over three TRS reports (15 categories each report). The participant also showed growth in 8 out of 15 BASC-III categories on the SRP. While although the participant showed growth, the participant showed minimum growth in functional levels. Overall, this research remains inconclusive due to the researcher’s inability to determine the functional relation between the intervention and maladaptive behaviors.

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4

Mueller, Dieter Christian. "Glossolalia and the right hemisphere of the brain." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/30750.

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This dissertation explores historical and contemporary occurrences of glossolalia or 'speaking in tongues', the production of a series of phonetically transcribable language-like but generally, non-cognitive sounds in a variety of (primarily religious; settings. The main issues are why some are susceptible to glossolalia, some may learn it, some crave the ability but cannot do so, and others are repelled. Divided into three parts, Part I of the dissertation considers the phenomenon of glossolalia itself and moves on to historical and cross-cultural contexts, relating glossolalia to that other realm often described as divine or mystical or supernatural or, as here, paranormal. While vocalizations of various kinds seem common to states of religious ecstasy cross-culturally, as a particular kind of vocalization (which need not occur in ecstasy) giossolaiia seems to be largely confined to, and has acquired a special significance in, Christianity. Further, it is regarded by modern Pentecosta1ists as a rite of passage known as a Baptism of the Holy Spirit which gives access to additional paranormal gifts: powers of wisdom, knowledge, prophecy, healing, exorcism. Part II examines theological, linguistic, and anthropological perspectives, and focuses on: the hostile attitudes of ecclesiastical orthodoxies towards glossolalia and the claims of glossolalists; the non-cognitive nature of glossolaliia despite the claims of Pentecostalists (albeit glossolalia may be a reiigious or 'praise' language) that glossolalia is cognitive and may be interpreted; the concept of taboo in its double sense of forbidden 'because dangerous/therefore attractive'; the validity of that basic assumption of social science, the psychic unity of mankind, in relation to intuitions of the dual nature of human personality and scientific knowledge of the nature and functions of the two hemispheres of the human brain. Giving particular attention to the cultural aetiology of glossolalia, especially in relation to authority, Part III analyses a series of interviews with, and C.L.E.M. tests of, glossolalists, would-be glossolalists and others, relating the results to present knowledge concerning the nature and functions of the Right and Left hemispheres of the human brain. While most people everywhere, responding to the requirements of their cultures, tend to activate their Left hemispheres, the research suggests that, in general, access to the paranormal, supernatural, or divine seems to be a function of the Right hemisphere, and in particular, that glossolalists tend to be Right hemisphere dominant.
Graduate and Postdoctoral Studies
Graduate

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5

Ferron, Danielle Carleton University Dissertation Psychology. "Changes with aging in right hemisphere activation as reflected in bimanual and dihaptic task performance." Ottawa, 1992.

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6

Roberts, Rose M. 1971. "Pruning the right branch : working memory and understanding sentences." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47888.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1998.
Includes bibliographical references (p. 115-122).
An experiment was conducted to determine whether tests used to assess working memory in different disciplines (neuroimaging, psycholinguistics, neuropsychology) are highly correlated, and thus whether they are equivalent measures of a unitary underlying function. Scores on the different tests (N-back, reading span, backward digit span) did not correlate highly, and were predicted by measures of different hypothesized components of working memory. These results indicate that working memory is best conceived of as a system of multiple, interacting components that contribute to different aspects of task performance, rather than as a single, unified resource, and that currently popular tests of working memory cannot be used interchangeably to measure working memory. A second experiment was conducted to examine the relation between sentence memory and working memory, and to determine whether memory for sentences is a function of the number of clauses in the sentence, or the number of new discourse referents. Subjects heard sentences of different lengths (2 - 5 clauses) and structures (relative clause, sentential complement, double object). Double object sentences contained one additional discourse referent per clause than the other two sentence types.
(cont.) If new discourse referents are the units of sentence memory, performance should be worse on double object sentences. If clauses are the unit of sentence memory, accuracy should be the same for all three sentence types. There were no reliable differences between double object sentences and the other two sentences types, indicating the clauses are the units of sentence memory. Subjects recalled 2-clause sentences highly accurately, and recalled 4-clause and 5-clause sentences poorly. There were large individual differences in the recall of 3-clause sentences. Over half of this variance was accounted for by individual differences in working memory. Measures of two hypothesized working memory components, the central executive and the short-term store, each accounted for independent variance in the sentence memory score.
by Rose M. Roberts.
Ph.D.

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7

Murasugi, Kumiko G. "An exploration of syntactic difficulties in right brain damaged patients." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5391.

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8

Sherratt, Susan Mary. "Oral discourse : right brain damage, demographic variables and sampling effects." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271163.

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9

Volpe, Andrea Sabato. "Tradurre per le neuroscienze. Proposta di traduzione e commento di Left Brain, Right Brain - Facts and Fantasies." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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The aim of this dissertation was to provide a translation from English to Italian of an extract from a review article about cerebral asymmetries titled “Left Brain, Right Brain: Facts and Fantasies”, published by Michael C. Corballis in 2014. A corpus was built to ensure that the translation had the appropriate terminology. A program called AntConc was employed for corpus analysis. After a brief introduction to the aim and structure of the work, the dissertation is divided into four chapters. Chapter one provides an overview of two theoretical concepts in order to gradually introduce the subject: the language used in specialized contexts and the genre analysis. Chapter two focuses on the textual analysis of the source text: this stage is crucial for a good comprehension of the text and for the detection of the main difficulties it raises. Chapter three consists of the translated text, while Chapter four provides a commentary of the translation, in which I describe the main problems encountered during the translation process and the strategies adopted to solve them.

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10

Bryan, K. L. "Prosody and other language deficits after right cerebral hemisphere damage." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373891.

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11

Murray, Sarah Elizabeth. "Hemispheric Responses to Different Musical Selections." Wittenberg University Honors Theses / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wuhonors1338492751.

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12

Mourad, Christine A. "Half of the Sky| Integrating the Relational Right Brain in Adolescent Treatment." Thesis, Pacifica Graduate Institute, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10255984.

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Adolescent treatment has come to rely on behavioral correctives with an emphasis on autonomy. This emphasis neglects the importance of healing the relational capacity in order to build internalized security. Addressing insecure attachments enables adolescents to transform their internal working model established in their early life experiences, potentially enabling them to move forward confidently in the relational world ahead of them. Utilizing both hermeneutic and heuristic methodology, this thesis considers existing research and theory combined with personal experience to examine the far-reaching effects of attachment styles and the neurological and therapeutic importance of right-brain attunement as the basis of emotional healing. This thesis also explores traumatizing practices in residential adolescent treatment, which may be more aligned with business models instead of optimum clinical models. The cultural collective unconscious is considered as operating from patriarchal principles, emphasizing obedience and punishment over building both trust and relationality.

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13

McDonald, P. M., and n/a. "Right and left brain learning processes : in the context of Australian export education." University of Canberra. Education, 1993. http://erl.canberra.edu.au./public/adt-AUC20060918.132852.

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The nature of the human brain has preoccupied philosophers and scientists for centuries. As early as the 4th Century BCE, Greek philosophers speculated that the anatomically distinct hemispheres of the brain implied specialisation of function. It was not until the "splitbrain" operations of the 1950s, however, that the precise specialisation of each hemisphere could be demonstrated. The right hemisphere apparently assumed responsibility for spacial, holistic processes, while the left hemisphere processed analytical, sequential tasks. During that same decade, educational psychologists observed two markedly different ways in which individuals perceive and relate to the world. It was later observed that these "cognitive styles" seemed directly related to the bi-polar functions of the right and left hemispheres of the brain. This implied a genetic basis for cognitive style. Subsequent research suggested that cognitive style is to a considerable extent a result of the environment of socialisation, and therefore, different cultures would demonstrate different cognitive styles. Such cultural differences in learning expectations might have serious implications for both teachers and learners in the field of export education. The literature review in this study identified physical, environmental, and experiential factors which appear to influence cognitive style. This information formed the basis of the biographical section of a questionnaire which elicited the learning style preferences of pre-tertiary students from Australia (native speakers), Indonesia and Japan. The study posed the negative hypothesis: There are no significant differences in patterns of cognitive styles between cultures. The results of the field study contradicted the negative hypothesis, identifying significant differences in patterns of cognitive styles between the three cultural groups.

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14

Little, Thomas S. "The Relationship of Right Brain/Left Brain Hemispheric Dimensions of Cognitive Style Between Teachers and Principals in Northeast Tennessee." Digital Commons @ East Tennessee State University, 1993. https://dc.etsu.edu/etd/2721.

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The Problem of this study was to determine if the cognitive style of elementary school principals affects the principal's evaluation of a teacher when there is a match or mismatch between the principal's and teacher's cognitive style. Using the Productivity Environmental Preference Survey, the dimensions of right brain/left brain hemispheric dimensions of cognitive style were measured for the sample population. The sample population included 40 elementary school principals and 120 elementary school teachers. The 120 teachers were made up of teachers selected by each of the 40 principals as the most effective teachers in the school. The statistical analysis of the data indicated there was not a significant correlation between the principal's right brain/left brain dimensions of cognitive style and the right brain/left brain dimensions of cognitive style of the teachers selected as the three most effective teachers in the school (r =.10, p =.281).

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15

Bielefeldt, Steven D. "An analysis of right-and left-brain thinkers and certain styles of learning." Menomonie, WI : University of Wisconsin--Stout, 2006. http://www.uwstout.edu/lib/thesis/2006/2006bielefeldts.pdf.

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16

Mott, Natasha Liane. "An investigation into the effects of right hemisphere brain damage on human communication." Thesis, Brunel University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340842.

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17

Semeniuk, Tracey L. (Tracy Lynn) Carleton University Dissertation Psychology. "Practice effects and lateral transfer of training." Ottawa, 1992.

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18

Duvall, Jill. "Coverbal behavior of aphasic and right hemisphere damaged subjects in conversation." PDXScholar, 1988. https://pdxscholar.library.pdx.edu/open_access_etds/3846.

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The frequency and duration of six coverbal behaviors were examined in two experimental groups and one control group. Conversational samples of ten aphasic subjects, ten right hemisphere damaged (RHD) subjects, and ten matched, non-brain damaged (NBD) control subjects were scored for frequency and duration of eye contact, head nod, head shake, head tilt, smile and eyebrow raise. Only the frequency of smile was found to differ significantly; the RHD subjects smiled less often than either of the other two groups.

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19

Brinker, Kathryn J. "The appreciation and comprehension of lexical humour in patients with right-hemisphere brain damage." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0005/MQ42128.pdf.

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20

Stewart, Chelsea Beatrice. "Effects of a Novel Right Brain Intervention on Stuttering Frequency in Unfamiliar Speech Tasks." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6401.

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Developmental stuttering persists in approximately 1% of the United States population. Stuttering has been shown to impact overall quality of life. The present study examines the effects of a Novel Right Brain Intervention on two female participants with persistent developmental stuttering. The aim of the study was to determine whether encouraging greater activation of the right hemisphere, specifically the pre-SMA, via complex left-handed movements, prior to speech production, would lead to a reduced stuttering frequency and severity in people who stutter (PWS). It was hypothesized that each participant would reduce stuttering symptoms and behaviors following the intervention due to the results found in patients with non-fluent aphasia's and neural imaging findings with PWS. Following analysis of speech samples taken from unstructured retell and unfamiliar reading tasks, the results revealed decreases in stuttering and secondary behaviors during the unstructured reading task for Participant 1 and decreases in stuttering and secondary behaviors during the unstructured retell task for Participant 2. The results of this study should be interpreted with caution, as this is a pilot study with multiple limitations. With further research, this method of intervention may become a viable option for those who have not benefited maximally from current intervention methods.

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21

Kemmer, Laura. "Event-related brain potential investigations of left and right hemisphere contributions to syntactic processing." Diss., [La Jolla] : University of California, San Diego, 2009. http://wwwlib.umi.com/cr/ucsd/fullcit?p3369000.

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Thesis (Ph. D.)--University of California, San Diego, 2009.
Title from first page of PDF file (viewed September 16, 2009). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

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22

Doyon, Julien. "Right temporal-lobe contribution to global visual processing and visual-cue learning." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75696.

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This thesis explores the visual functions of the right anterior temporal cortex of the human brain. In Part 1, 92 patients with unilateral temporal- or frontal-lobe excisions and 35 normal control subjects were tested under two experimental conditions (global, local) of a reaction-time task, employing hierarchically structured letters or designs as stimuli. In both versions, the right temporal-lobe group was less affected than other groups by interference from the global aspect of the stimulus. These findings support the hypothesis that the right temporal lobe contributes to global visual processing. In Part 2, the ability to learn a cue-system for discriminating between two targets against a background of visually similar items was examined in 107 patients with unilateral temporal- or frontal-lobe excisions and 37 control subjects, using three versions of a visual-cue learning task. With letters and nonsense syllables, all groups took longer to complete the task when the background information was changed after three learning trials. With abstract designs, only patients with right temporal-lobe lesions failed to show this interference effect after three learning trials, but did so after six. Hence, it is argued that the right temporal lobe plays a role in visual pattern-discrimination learning.

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23

Perry, Josalyn Elizabeth. "Effects of a Novel Right Brain Intervention on Stuttering in Familiar and Structured Speech Tasks." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6352.

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Over 3 million Americans are disfluent due to developmental stuttering. Current evidence-based treatments typically consist of a rigorous schedule of intensive therapy, followed by the need for maintenance of skills, placing high demands on self-monitoring of one’s speech at all times. Relapse after treatment is very common, at 84%. The demand for further research into treatment possibilities for stuttering is on the forefront. Previous research has connected neural activations in people who stutter (PWS) and people with chronic nonfluent aphasia. The aim of this study was to determine if a novel intervention, based on a treatment for anomia, would change the frequency of stuttering during two speech tasks. A focal point of the treatment was the inclusion of a complex left-handed movement throughout tasks, targeting a proposed lateralization of neural activation into the right hemisphere of PWS, in order to promote fluent speech. Based on the results from the aphasia treatment study, a decrease in the frequency of stutter events was expected as a result of the adapted treatment for fluency. Two participants received treatment over the course of three weeks. Measurements of fluency during two speech tasks were obtained for pre-treatment, post-treatment, and follow-up analysis. Results from treatment indicated a general decrease in the frequency of stutter events in both participants. Further research is warranted in order to determine if this type of treatment could help to initiate a shift in focus to intervention approaches that deliver fluency gains with much less intensive treatment.

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24

Belangia, W. Webb. "Worship at Mt. Pleasant United Methodist Church a study of left and right brain differences /." Theological Research Exchange Network (TREN), 1996. http://www.tren.com.

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25

McDowell, Christine L. 1950. "Right hemisphere decline in the perception of emotion as a function of aging." Diss., Virginia Tech, 1991. http://hdl.handle.net/10919/39771.

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26

Jordan-Brown, Laura M. "Top-to-bottom serial analysis of faces in the left and the right cerebral hemispheres." Virtual Press, 1985. http://liblink.bsu.edu/uhtbin/catkey/423897.

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The present study investigated hemispheric lateralization and the use of serial versus global processing of facial stimuli in a recognition task. The subjects were 19 male and 29 female undergraduate students. Identi-Kit faces which varied on four features (hair, eyes, mouth, and chin) were tachistoscopically presented. The accuracy of the subjects' responses were recorded. Analyses of variance suggested that subjects did not differ in use of inner or outer details, but did differ in use of upper and lower details. The data suggested a top-to-bottom order of processing for stimuli presented in both visual fields, with the most accurate recognition based on the hair, eyes, mouth, and chin, in that order.

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27

Comer, Clinton S. "Cerebral Laterality, Emotion, and Cardiopulmonary Functions: An Investigation of Left and Right CVA Patients." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/56981.

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Stroke, or cerebrovascular accident (CVA), is a prominent cause of long term disability in the United States. It has been evidenced that the outcome of a CVA patient differs as a function of the cerebral hemisphere that is damaged by the stroke, especially in terms of emotional changes. The Right Hemisphere Model of Emotion posits that the right hemisphere is specialized for processing emotional content, regardless of valence. In contrast, the Bi-Hemispheric Model of Emotion posits that each hemisphere has its own emotional specialization. The current experiment tested the competing predictions of the two theoretical perspectives in a mixed sample of left cerebrovascular accident (LCVA) patients and right cerebrovascular accident (RCVA) patients using a Dichotic Listening task and the Affective Auditory Verbal Learning Test (AAVLT). Heart Rate (HR) and Pulse Oxygen Saturation (SpO2) were also recorded as sympathetic measures. It was expected that the predictions of the Bi-Hemispheric Model would be supported. A series of mixed design ANOVAs were used to analyze the data. Results revealed that both groups may have exhibited decreased auditory detection abilities in the ear contralateral to CVA location. Additionally, CVA patients recalled significantly more positive words, than negative or neutral words, and exhibited a significant learning curve. LCVA patients exhibited a recency effect, while RCVA patients exhibited a heightened primacy effect. Findings from HR and SPO2 measures suggested a parasympathetic response to neutral information as well as an impaired sympathetic response to negative information in RCVA patients. Taken together these results lend partial support to the hypotheses drawn from the Bi-Hemispheric Model of Emotion, as evidenced by the diametrically opposite effects in these groups, which appears to reflect opposing cerebral processes.
Ph. D.

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28

Leonard, Carol. "The use of contextual information by right brain-damaged individuals in the resolution of ambiguous pronouns." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41662.

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Three experiments were conducted with the primary purpose of investigating the ability of right brain-damaged (RBD) individuals to use contextual information--at the level of the single sentence, in terms of the integration of information between clauses, and at the level of a minimal discourse (i.e. two sentences)--in the resolution of ambiguous pronouns. The investigation was extended to a group of left brain-damaged (LBD) and non brain-damaged (NBD) individuals. Four additional studies investigated and found no age effects in the use of contextual information in pronoun resolution. The results of the experiments with brain-damaged subjects were contrary to initial expectations. All three experiments were consistent in demonstrating that the RBD group was influenced by contextual information in a manner similar to that demonstrated by both the LBD and NBD groups. The results are discussed in terms of the distinction between automatic and effortful processing.

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29

Murphy, Donald. "An investigation of relationships between television viewing and the artificial fulfillment of creative, right brain properties." Instructions for remote access. Click here to access this electronic resource. Access available to Kutztown University faculty, staff, and students only, 1992. http://www.kutztown.edu/library/services/remote_access.asp.

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Thesis (M.S.)--Kutztown University of Pennsylvania, 1992.
Source: Masters Abstracts International, Volume: 45-06, page: 2717. Abstract precedes thesis as 2 preliminary leaves. Typescript. Includes bibliographical references (leaves 53-54).

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30

Halligan, Peter W. "The behavioural assessment of unilateral visual neglect." Thesis, Oxford Brookes University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328077.

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31

Barrette, Martine. "Contributions of the right and left hemispheres to lexical ambiguity resolution : evidence from unilaterally brain-damaged adults." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32978.

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The present experiment was conducted to explore the time-course of lexical ambiguity resolution in normal control (NC) subjects and the nature of right hemisphere-damaged (RHD) and left hemisphere-damaged (LHD) patients' impairments in this process. NC, RHD and LHD subjects performed a cross-modal lexical decision task, in which they heard sentence contexts that were biased toward the dominant or subordinate meanings of ambiguous words occurring before the end of the sentence. Written target words related to the dominant or subordinate meaning of the ambiguous words were introduced either at the onset of the ambiguous word (immediate condition), or 1000 ms later (delayed condition). Results revealed that both dominant and subordinate meanings were primed in the immediate condition, irrespective of context type or group. In the delayed condition, only the contextually-appropriate dominant meanings were primed in normal control subjects, whereas both patient groups showed significant priming only for the contextually-inappropriate dominant meanings. Findings for the NC subjects are interpreted in support of a modular model of lexical ambiguity resolution, and more specifically of an exhaustive access view. Patients' results are discussed with reference to a delayed suppression mechanism of inappropriate meanings, which is thought to be involved in these patients' language comprehension deficits.

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32

Löfgren, Agnes. "Speech-language pathology intervention on stroke-induced right hemisphere brain damage : A comparison between Sweden and France." Thesis, Uppsala universitet, Institutionen för neurovetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-277382.

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33

Lu, Po-Nien. "Zebrafish Epithalamus as a Model System for Studying Circadian Rhythms and Left-Right Asymmetry." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1333731416.

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34

Loutrari, Ariadni Despoina. "Prosody beyond pitch and emotion in speech and music : evidence from right hemisphere brain damage and congenital amusia." Thesis, Birkbeck (University of London), 2016. http://bbktheses.da.ulcc.ac.uk/330/.

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This dissertation examines the relationship of prosodic processing in language and music from a new perspective, considering acoustic features that have not been studied before in the framework of the parallel study of language and music. These features are argued to contribute to the effect of ‘expressiveness’ which is here defined as the combination of the acoustic features (variation in duration, pitch, loudness, and articulation) that results in aesthetic appreciation of the linguistic and the musical acoustic stream and which is distinct from pitch, emotional and pragmatic prosody as well as syntactic structure. The present investigation took a neuropsychological approach, comparing the performance of a right temporo-parietal stroke patient IB; a congenitally amusic individual, BZ; and 24 control participants with and without musical training. Apart from the main focus on the perception of ‘expressiveness’, additional aspects of language and music perception were studied. A new battery was designed that consisted of 8 tasks; ‘speech prosody detection’, ‘expressive speech prosody’, ‘expressive music prosody’, ‘emotional speech prosody’, ‘emotional music prosody, ‘speech pitch’, ‘speech rate’, and ‘music tempo’. These tasks addressed both theoretical and methodological issues in this comparative cognitive framework. IB’s performance on the expressive speech prosody task revealed a severe perceptual impairment, whereas his performance on the analogous music task examining ‘expressiveness’ was unimpaired. BZ also performed successfully on the same music task despite being characterised as congenital amusic by an earlier study. Musically untrained controls also had a successful performance. The data from IB suggest that speech and music stimuli encompassing similar features are not necessarily processed by the same mechanisms. These results can have further implications for the approach to the relationship of language and music within the study of cognitive deficits.

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35

Kongsbak, Ute. "Reading comprehension of literal, translational, and high inference level questions in aphasic and right hemisphere damaged adults." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/4094.

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The purpose of this study was to examine and compare inferential abilities on a reading comprehension task in two groups of adults who had suffered cerebrovascular accidents (CVA). Sixteen subjects with a CVA to the right hemisphere of the brain were compared to an equal number of left hemisphere damaged subjects. Subjects were selected after they had demonstrated an adequate level of functioning on the Short Porch Index of Communicative Ability (SPICA), a test which measures communicative efficiency, to perform the tasks required in this study. All subjects were administered the revised version of the Nelson Reading Skills Test (NRST). On the NRST, test questions can be grouped into three categories representing literal, translational and high levels of inference. Subjects were presented five reading paragraphs. They were asked to answer thirty-three questions pertaining to the reading material by pointing to the correct answer out of four choices. Subjects were allowed to refer back to the paragraphs when trying to answer the questions. Results revealed total NRST performance to be significantly better for RBD subjects. RBD subjects also performed significantly better than LBD subjects on translational inference items. The research data did not reflect the expected error pattern with most errors on questions requiring high inferential abilities followed by translational items and fewest errors on literal inferences for either group of subjects.

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Staley, Charon M. "Asymmetrical location of the external auditory meatuses and lateralization." Virtual Press, 1989. http://liblink.bsu.edu/uhtbin/catkey/560287.

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Since the face forms over the brain in the course of embryonic development, facial anthropometry may reflect brain structure. The motor functions of each side are controlled by the side of the brain opposite the body side. The purpose of this study was to establish whether a correlation exists between handedness and the location of the external auditory meatuses, as a possible consequence of brain asymmetry. Facial photographs were taken of 78 volunteers. Straws, placed in the external ear canals, were used to mark the external auditory meatuses. The level of the top of each meatus was measured from each volunteer's visual plane, as established by connecting the center of a point of reflected light in each pupil. Each volunteer was also given the Edinburgh Laterality Inventory (Durden-Smith and DeSimone, 1984:53) to determine "true" handedness (50 right-handers and 28 left-handers). Right-handers, as determined by either writing hand or laterality inventory, were found to exhibit a greater tendency for the left auditory meatus to be lower. Specifically, 68% of the right-handers, as opposed to 39% of the left-handers, exhibited a left external auditory meatus located at a lower position on the skull than the right meatus. This was significant at the 0.05 level. The differences in external auditory meatal distances from the visual plane were greater on the left in right-handers 68% of the time, equal 10%, and greater on the right 22% of the time. A reverse correlation for the right asymmetry for left-handers was not found. Instead, for the left-handed sample a nearly even distribution for meatal location was found: 39% left asymmetry, 29% symmetry, and 32% right asymmetry.The study strongly supported the hypothesis that right-handers have a significant tendency for left asymmetry in location of the external auditory meatuses. The study did not support the hypothesis that the meatal asymmetry correlates to the side opposite the handedness of the individual. Of-perhaps greater significance is the finding that the percentages of left asymmetry of both groups match the brain asymmetry percentages found by Galaburda (1984:15) for the planum temporale, an extension on the upper surface of the temporal lobe of the brain. The level of the external auditory meatuses, as a reflection of brain asymmetry, may serve as an external measurement of the location of Wernicke's area which is located near the planum temporale and has a major role in speaking and comprehension of the spoken word and in reading and writing. Simple techniques for locating the language centers of the brain would be an advantage in developing education plans and teaching strategies for students with each of the possible hemispheric dominance patterns.
Department of Anthropology

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Grindrod, Christopher M. "Differential effects of left-and right-hemisphere brain damage on the ability to use context in lexical ambiguity resolution." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84253.

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Recent research has argued that the intact functioning of both the left (LH) and right cerebral hemispheres (RE) is integral for comprehending lexically ambiguous words (Chiarello, 1998; Faust & Chiarello, 1998; Faust & Gemsbacher, 1996). While studies of neurologically intact individuals have attributed specific functions to the LH and RH, studies of brain-damaged patients have failed to provide complementary evidence for these hemispheric abilities. In addition, the majority of studies have focused on ambiguity resolution in single-sentence (local) contexts, and, as such, do not address whether each hemisphere is sensitive to different types of context, a factor which could potentially serve to modulate brain-damaged patients' ability to resolve ambiguity. To illuminate the role of the cerebral hemispheres in ambiguity resolution and to explore the sensitivity of each hemisphere to different types of context, three studies were undertaken in this thesis. The first study examined left-hemisphere-damaged (LHD) nonfluent aphasic, right-hemisphere-damaged (RHD) and non-brain-damaged (NBD) control subjects' ability to use a single-sentence local context to resolve lexically ambiguous words. Results indicated that both patient groups were unable to use this type of context. While LHD patients activated both meanings regardless of context at a short (0 ms) ISI and no meanings at a longer (750 ms) ISI, RHD patients only activated more frequent first meanings at both ISIs. The second study explored these same groups' ability to use a two-sentence global context. Results of this experiment in part paralleled those of the previous one, showing that LHD patients were unable to activate any meanings at either ISI, whereas RHD patients, at both ISIs, again activated more frequent meanings regardless of context. The final study investigated these individuals' ability to use a four-sentence discourse context. Findings of this study, across all groups,

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38

McHugh, Meredith Jane. "Is fear right? Applying Gray's two-dimensional neuropsychology of defence to the approach-withdawal model of frontal-brain asymmetry." Thesis, Griffith University, 2010. http://hdl.handle.net/10072/365786.

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Two prominent theories have guided decades of research into the biological basis of human fear and anxiety. Davidson's Anterior Asymmetry and Emotion model holds that fear and anxiety derive from a single, withdrawal system, which is in turn aligned with right prefrontal regions (as part of a larger network of ingulate/subcortical structures). In contrast, Gray's Reinforcement Sensitivity Theory (RST), though originally of a similar view, has since been revised to account for an observed functional, behavioural and pharmacological distinction between fear and anxiety which Gray now aligns with two neurobiologically separable systems, the Fight, Flight, Freeze System (FFFS; fear) and the Behavioural Inhibition System (BIS; anxiety). Whilst generating a great deal of empirical interest, Davidson's withdrawal system/right prefrontal hypothesis has to date received very mixed support. It was proposed here that by applying Gray's fear/anxiety distinction to Davidson's model, some of this past inconsistency may be accounted for. Specifically, it was hypothesised that right prefrontal regions should be aligned with fear (FFFS), but not anxiety (BIS). However, although established at an animal level, Gray's BIS/FFFS distinction has received minimal attention within a human experimental setting. Thus testing this right prefrontal/FFFS hypothesis was first contingent on deriving valid methods of distinguishing the FFFS and BIS at a human level. This was initially addressed by exploring the potential relevance of existing self-report trait measures. Critically, it was observed that Gray's revised RST (which also includes a third system, the Behavioural Activation System, BAS) now closely resembles the three primary dimensions common to most three-factor models of temperament/personality. In particular, extensive conceptual, neurobiological and behavioural overlap was documented between trait models of Gray's three systems (FFFS, BIS and BAS) and Tellegen's Negative Emotionality, Constraint and Positive Emotionality superfactors. Accordingly, Constraint (in particular the Control and Harm Avoidance subscales) and Negative Emotionality (in particular the Stress Reaction subscale) were proposed as potential trait level markers of the revised BIS and FFFS respectively. This was supported in Study 1 (N=190) by observing that Control, Harm Avoidance and Stress Reaction loaded highly and exclusively onto orthogonal BIS (Control and Harm Avoidance) and FFFS (Stress Reaction) factors; two of three factors which emerged when these measures were entered into an exploratory factor analysis with measures of the old (pre-revised RST) BIS construct (i.e., Carver and White BIS scale, CW-BIS; the Trait scale of the Spielberger State Trait Anxiety Inventory, STAIT, Sensitivity to Punishment scale, SP), and existing BAS measures. Somewhat surprisingly, all old BIS measures loaded exclusively on the FFFS factor.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Psychology
Griffith Health
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39

Ho, Sai-Keung. "Hemisphere differences in lexical decision and in semantic priming effect: an attempt to expand ourunderstanding of the right hemisphere ability in processing theChinese language." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1987. http://hub.hku.hk/bib/B29782715.

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Cheung, Wai-yin Eddie, and 張蔚賢. "Relation between plasma brain natriuretic peptide, right ventricular function and exercise capacity in patients after surgical repair ofTetralogy of Fallot." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45009971.

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Wild, Celia. "Contributions of the left and right hemisphere in language : investigating the effects of unilateral brain damage (stroke) on metaphor processing." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/3134/.

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It is widely accepted that the left hemisphere of the brain is specialised and dominant for language comprehension and production and that those with left hemisphere damage often display profound language disruption (Geschwind, 1965). The importance of the left hemisphere is shown by communication problems or extreme difficulty in producing speech following damage to this brain region. In contrast, following right hemisphere damage, disruption to language is less perceptible to the casual observer. The evidence base currently available acknowledges a critical role for the right hemisphere in processing inferred or implied information by maintaining relevant facts and/or suppressing irrelevant ones but the exact role of the right hemisphere and its coordination with the left is open for debate (Johns, Tooley and Traxler, 2008). Two theories have been proposed to explain communication/language difficulties in individuals with right hemisphere damage: (i) the “coarse semantic coding” hypothesis and (ii) the “suppression deficit” hypothesis. The “coarse semantic coding” hypothesis proposes that damage to the right hemisphere causes an over reliance on fine coding assumed to be undertaken by the left hemisphere in the comprehension of language, implying the recall of most literal interpretations. The “suppression deficit” hypothesis proposes that damage in the right hemisphere means multiple activations of meanings of words are not attenuated leading to ineffective suppression of inappropriate interpretations. This project investigated competing evidence for each of these hypotheses by studying the processing abilities of individuals with depressed unilateral brain function caused by stroke or innovatively produced by transcranial DC stimulation (tDCS), on semantic judgement tasks using metaphorical language. The results demonstrated the strongest of evidence for the coarse semantic coding hypothesis when the data from participants with damage to the right hemisphere, both caused by stroke and simulated by tDCS was considered. Overall, the study has furthered the understanding of the role of the right hemisphere in language comprehension and demonstrated the contribution of the tDCS methodology in the field.

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Schauer, Georg [Verfasser], and Andreas [Akademischer Betreuer] Bartels. "Investigating the role of right parietal cortex in multistable perception using non-invasive brain stimulation / Georg Schauer ; Betreuer: Andreas Bartels." Tübingen : Universitätsbibliothek Tübingen, 2019. http://d-nb.info/120493018X/34.

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Cheung, Wai-yin Eddie. "Relation between plasma brain natriuretic peptide, right ventricular function and exercise capacity in patients after surgical repair of Tetralogy of Fallot /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B31495424.

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Hartwigsen, Gesa [Verfasser]. "The forgotten hemisphere : right-hemispheric contributions to modality-independent phonological aspects of language processing in the healthy human brain / Gesa Hartwigsen." Kiel : Universitätsbibliothek Kiel, 2010. http://d-nb.info/1019982721/34.

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45

Walker, Kenneth N. (Kenneth Neal). "Differential Effects of Biofeedback Input on Lowering Frontalis Electromyographic Levels in Right and Left Handers." Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc331405/.

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This investigation was an attempt to replicate and expand previous research which suggested that laterality of electromyographic biofeedback input had a significant effect in lowering frontalis muscle activity. In 1984 Ginn and Harrell conducted a study in which they reported that subjects receiving left ear only audio biofeedback had significantly greater reductions in frontalis muscle activity than those receiving right ear only or both ear feedback. This study was limited to one biofeedback session and subjects were selected based on demonstration of right hand/ear dominance. The purpose of the present study was to determine whether the left ear effect reported by Ginn and Harrell could be replicated. Furthermore, the current investigation sought to extend the previous finding to left handed subjects and explore the stability of the effect, if found, by adding a second biofeedback session. Subjects were 96 students recruited from undergraduate psychology classes. They were screened for handedness by the Edinburgh Handedness Inventory which resulted in identification of 48 right handers and 48 left handers. Subjects were randomly assigned to one of four groups consisting of left ear feedback, right ear feedback, both ears feedback, and controls. This resulted in eight conditions. Analysis of variance of microvolt changes from baseline found no statistically significant differences between groups. An examination of the rank order of the data reveal a left ear group performance in the same direction as those reported by Ginn and Harrell (1984).

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Rosenthal, Alisha [Verfasser], and Georg [Akademischer Betreuer] Kerkhoff. "Multimodal deficits in right brain damaged patients with and without neglect and their modulation by sensory stimulation techniques / Alisha Rosenthal. Betreuer: Georg Kerkhoff." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2015. http://d-nb.info/1079840222/34.

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Darius, Helene. "Savant syndrome - Theories and Empirical findings." Thesis, University of Skövde, School of Humanities and Informatics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-52.

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Savant syndrome is a rare condition in which some people have extraordinary talents despite some serious mental or physical disability. It is a syndrome with remarkable features, standing in stark contrast to a person’s overall character. The term savant, or idiot savant, describes a person who, in spite of low intelligence, has a skill in some specific narrow area. Savants can have a specific talent in, for instance, music, art, calendar calculation or foreign language but whatever the specific talent is, it is always connected to extraordinary memory. Savant syndrome seems to be also connected to autism or autistic characteristics. In this paper I aim to give a clear description of the savant syndrome and explain its connection to autism. Further, I present how specific theories try to describe the causes of savant syndrome, and connect the theories to results of empirical research in order to give an overall view of the syndrome’s appearance. I will also compare the theories and evaluate their strengths and weaknesses with respect to the discoveries and progress that has been made within the area of savant syndrome research.

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Symon, Bernard Dennis. "Brain Laterality and Pharmacists' ideal interactive work environment: an empirical investigation." University of the Western Cape, 2017. http://hdl.handle.net/11394/6456.

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Doctor Pharmaceuticae - Dpharm
The brain laterality of pharmacists may influence where the pharmacists are best suited to work. Brain laterality refers to the asymmetry of the hemispheres of the brain with regard to specific cognitive functions, such as objectivity and emotion. The left hemisphere functions objectively and rationally, whereas the right hemisphere is subjective and nonrational. Animal behaviour in the literature demonstrated an influence of brain laterality, thus selecting an ideal work environment may also be driven by brain laterality bias. Further support for the research included: amblyopia; hemiplegia; the WADA test. The research question investigated the matching of the brain laterality groups of pharmacists to their ideal work environments. The aims investigated: ear, eye, hand and foot dominance in determining brain laterality; influence of brain laterality and reductionistic variables on job choice; location of emotion generation and job choice. Five objectives investigated these aims: influence of brain laterality alone; influence of brain laterality and reductionistic variables; influence of a new brain laterality determining continuum; Propinquity Principle in achieving data; correctness of the Right Hemisphere Theory (RHT) or the Valence Theory (VT). The RHT suggests that the right hemisphere is dominant in processing all emotion. The VT argues that the left hemisphere is specialised in processing the positive emotions while the right hemisphere is specialised in processing the negative emotions. The resulting Null Hypothesis posits that there is no statistical difference between the different brain laterality groups enabling pharmacists to work competently in any placement. The Alternative Hypothesis was that there is a statistical difference between the brain laterality groups, thus brain laterality can be used to best place pharmacists into ideal placements. Global warming questions in the questionnaire determined positive and negative emotion as well as enthusiasm for global warming problems. In South Africa, probability cluster sampling was applied utilising postal and email methods. In the UK, non-probability purposive sampling was applied utilising four methods: snowballing, email, postal, and convenience sampling. Both countries produced similar results for the same sample size.

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Jukuri, T. (Tuomas). "Resting state brain networks in young people with familial risk for psychosis." Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526211107.

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Abstract Neuropsychiatric illnesses usually become overtly manifest in adolescence and early adulthood. A critical long-term aim is to be able to prevent the development of such illnesses, which requires instruments to identify subjects at high risk of illness and to offer them effective interventions. There is an indisputable need for more sophisticated methods to enable more precise detection of adolescents and young adults who are at high risk of developing psychosis. Abnormal function in brain networks has been reported in people with schizophrenia and other psychotic disorders. Similar abnormalities have been found also in people at risk for developing psychosis, but it is not known whether this applies also to spontaneous resting state activity in young people with a familial risk for psychosis. We conducted resting-state functional MRI (R-fMRI) in 72 (29 male) young adults with a history of psychosis in one or both parents (FR) but without psychosis themselves, and 72 (29 male) similarly healthy control subjects without familial risk for psychosis. Both groups in the Oulu Brain and Mind study were drawn from the Northern Finland Birth Cohort 1986. All volunteers were 20–25 years old. Parental psychosis was established using the Care Register for Health Care. R-fMRI data was pre-processed using independent component analysis (ICA). A dual regression technique was used to detect between-group differences with p < 0.05 threshold corrected for multiple comparisons at voxel level. FR subjects demonstrated significantly decreased activity compared to control subjects in the default mode network and in the central executive network and increased activity in the cerebellum. The findings clarify previously controversial literature on the subject. The finding suggests that abnormal activity in these brain networks in rest may be associated with increased vulnerability to psychosis. The findings maybe helpful in developing more precise methods for detecting young people at highest risk for developing psychosis
Tiivistelmä Psykoottisiin häiriöihin sairastutaan yleensä nuoruudessa tai varhaisaikuisuudessa. Psykoositutkimuksen tavoitteena on löytää uusia menetelmiä, joiden avulla kyettäisiin tunnistamaan suurimmassa psykoosiriskissä olevat nuoret, jotta heille voitaisiin tarjota sairautta ennaltaehkäiseviä hoitokeinoja. Skitsofreniaan ja muihin psykoottisiin häiriöihin sairastuneilla on havaittu aivotoiminnan poikkeavuuksia. Samankaltaisia aivotoiminnan poikkeavuuksia on havaittu myös nuorilla, jotka ovat vaarassa sairastua psykoosiin. Toistaiseksi on ollut epäselvää, onko psykoosiin sairastuneiden henkilöiden lapsilla aivohermoverkkojen toiminnan poikkeavuuksia lepotilassa. Suoritimme aivojen lepotilan MRI-tutkimuksen (R-fMRI) 72:lle (29 miestä) nuorelle aikuiselle, joiden jompikumpi vanhempi oli sairastunut psykoosin sekä 72:lle (29 miestä) nuorelle aikuiselle, joiden vanhemmat eivät olleet sairastaneet psykoosia. Molemmat tutkimusryhmät tässä Oulu Brain and Mind -tutkimuksessa olivat Pohjois-Suomen 1986 syntymäkohortin jäseniä. Tutkittavat olivat 20–25 vuoden iässä. Lepotilan toiminnallinen magneettikuvaus suoritettiin 1.5 Teslan Siemensin magneettikuvantamislaitteella. Tutkimuskohteiksi valittiin lepotilan toiminnallinen aivohermoverkko, toiminnan ohjauksesta vastaava aivohermoverkko ja pikkuaivot. Kuvantamisdataan sovellettiin itsenäisten komponenttien analyysia aivohermoverkkojen määrittämistä varten. Ryhmien välisen eron havaitsemiseen käytettiin ei-parametristä permutaatiotestiä, joka kynnystettiin tilastollisesti merkitsevään tasoon (p < 0.05). Lepotilan oletushermoverkossa ja toiminnanohjauksesta vastaavassa aivohermoverkoissa havaittiin vähäisempää aktiivisuutta ja pikkuaivoissa kohonnutta aktiivisuutta perinnöllisessä psykoosiriskissä olevilla nuorilla aikuisilla verrattuna verrokkeihin. Tutkimustulokset selkeyttivät aiempaa ristiriitaista kirjallisuutta tutkimusaiheesta. Tutkimuksessa havaittujen aivoalueiden poikkeava toiminta lepotilassa voi liittyä kohonneeseen psykoosin puhkeamisriskiin. Tutkimuslöydösten avulla voidaan todennäköisesti edesauttaa parempien kuvantamismenetelmien kehittämistä suurimmassa psykoosiriskissä olevien nuorten tunnistamiseen

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Fonseca, Rochele Paz. "Bateria montreal de avaliação da comunicação : estudos teóricos, sócio-demográfico, psicométrico e neuropsicológico." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2006. http://hdl.handle.net/10183/11820.

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As especializações do hemisfério direito (HD) no processamento da função lingüística e da comunicação vêm ganhando destaque na literatura internacional, sendo ainda pouco conhecidas no contexto nacional. Conseqüentemente, há, ainda, limitados procedimentos de avaliação neuropsicológica dos distúrbios comunicativos apresentados em quadros de lesões desse hemisfério. Frente a essa demanda de ferramentas diagnósticas, a presente pesquisa teve por objetivo promover estudos teóricos e empíricos com a Bateria Montréal de Avaliação da Comunicação – Bateria MAC, versão Brasileira do instrumento canadense Protocole Montreal d’Évaluation de la Communication – Protocole MEC, analisando-se o processamento de habilidades comunicativas de ativação do HD em adultos não lesados e em indivíduos com lesão vascular nesse lado do cérebro. Essa tese está composta por quatro estudos teóricos, com os objetivos de verificar quais os indícios do papel do HD no processamento comunicativo em estudos de neuroimagem com indivíduos neurologicamente preservados (Estudo teórico 1), apresentar uma meta-análise de estudos com indivíduos com lesão vascular no HD, investigando-se o desempenho desta população no processamento comunicativo (Estudo teórico 2), apresentar uma revisão teórica sobre a avaliação neuropsicológica da linguagem após lesão cerebral, com ênfase nas avaliações funcionais (Estudo teórico 3) e promover uma caracterização da Síndrome do HD (Estudo teórico 4). Além disso, a tese também está formada por três estudos empíricos, que visam a verificar o efeito de variáveis sócio-demográficas no desempenho comunicativo avaliado pela Bateria MAC (Estudo empírico 1), a apresentar normas de desempenho quanto à idade e à escolaridade, assim como dados da fidedignidade desse instrumento (Estudo empírico 2) e a averiguar o desempenho de lesados de HD nas tarefas comunicativas da Bateria MAC, comparando-os com um grupo controle (Estudo empírico 3). Como resultados, os estudos teóricos 1 e 2 mostraram uma importante contribuição do HD no processamento comunicativo tanto em indivíduos neurologicamente saudáveis quanto em indivíduos com lesões cerebrais direitas. O estudo teórico 3 evidenciou um crescente interesse pelo exame dos aspectos funcionais. O quarto estudo caracterizou os principais sintomas cognitivos (anosognosia, heminegligência sensorial, prosopagnosia, alterações de memória visuo-espacial e de trabalho, dispraxia construtiva e disfunção executiva), comunicativos (alterações nos componentes discursivo, pragmático-inferencial, léxico-semântico e prosódico) e comportamentais (dificuldades de compreensão e produção de emoções faciais e vocais e alterações neuropsiquiátricas) da Síndrome do HD. No estudo empírico 1, foram verificados efeitos das variáveis idade e escolaridade em tarefas dos quatro processamento avaliados pela Bateria MAC, sendo o efeito da educação mais significativo. O estudo empírico 2 apresentou normas quanto à idade e à escolaridade e demonstrou uma adequada fidedignidade do instrumento investigado. Por fim, no estudo 3 observou-se efeito da lesão de HD em tarefas discursivas, pragmáticas, léxico-semânticas e prosódicas, além de uma menor homogeneidade do grupo clínico quando comparado ao controle.
Right hemisphere (RH) specializations related to language and communication functions have been focused in international literature, although they are nationally less known. Consequently, there still are reduced neuropsychological assessment procedures to evaluate communication disorders present in right brain damage. Taking this great demand of diagnosis tools into account, this research aimed to present theoretical and empirical studies with the Brazilian version of Montreal Communication Evaluation Battery – Protocole MEC, analyzing the process of communicative abilities related to RH’s activation in non-damaged adults and in individuals with a stroke in this hemisphere. This thesis is formed by four theoretical studies, with the aims to verify the literature index to right hemisphere role on communicative processing in neuroimaging studies with neurologically normal participants (Theoretical study 1), to present a meta-analysis of studies with right brain damaged participants, verifying their communicative processing (Theoretical study 2), to present a theoretical review about the language neuropsychological assessment after brain damage, emphasizing the functional evaluation (Theoretical study 3) and to promote a description of the RH Syndrome (Theoretical study 4). Moreover, the thesis also includes three empirical investigations, witch aim to verify demographic factors’ effects on communication performance evaluated by Protocole MEC (Empirical study 1), to present norms related to age and education, as well as reliability data (Empirical study 2) and to investigate right brain damaged communication performance in Protocole MEC’s tasks, comparing this clinical group with a control one (Empirical study 3). As results, theoretical studies 1 and 2 showed an important contribution of the right hemisphere to communication process in healthy and right brain damaged subjects. In the theoretical study 3, a growing interest in the evaluation of language functional components was observed. The fourth study characterized the main RH Syndrome’s cognitive symptoms (anosognosia, hemineglect, prosopagnosia, working and visual-spatial memory disorders, constructional dyspraxia and executive dysfunction), communication symptoms (discoursive, pragmatic, lexical-semantic 12 and prosodic deficits) and behavioral symptoms (difficulties in comprehension and production of facial and vocal expression, as well as neuropsychiatric disorders). In the empirical study 1, age and schooling effects were noted in tasks that evaluate the four communication components covered by the Protocole MEC. The education effect was more significant than the age one. The empirical study 2 presented norms stratified by age and education and it showed that Protocole MEC is a reliable instrument. In the study 3, a right brain damage effect was observed in discursive, pragmatic, lexical-semantic and prosodic tasks, followed by a less homogeneous performance of the clinical group compared to the control one.

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