Relevant bibliographies by topics / Perceptual concordance

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Academic literature on the topic 'Perceptual concordance'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Perceptual concordance"

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Fairhall, Scott L., Stefano Anzellotti, Petra E. Pajtas, and Alfonso Caramazza. "Concordance between perceptual and categorical repetition effects in the ventral visual stream." Journal of Neurophysiology 106, no. 1 (July 2011): 398–408. http://dx.doi.org/10.1152/jn.01138.2010.

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The process of object categorization is an integral part of human cognition. In the present study, we have used a repetition suppression paradigm to determine the degree to which the ventral visual cortex is sensitive to categorical relationships. By using images of animals and tools, suppression across perceptual (stimulus level) and categorical repetitions (basic level and domain level) was compared and contrasted across the domain-selective and hierarchical organization of the ventral visual stream. Both perceptual and categorical repetition effects were insensitive to domain-selective tuning, with suppression most prominent in regions responding maximally to images, irrespective of stimulus domain. Likewise, both perceptual and categorical repetition produced overlapping suppression across multiple regions of the visual hierarchy. Some divergent patterns were observed. The right superior temporal sulcus demonstrated repetition suppression only at the basic level (different examples of the same basic object), and the right anterior fusiform gyrus was sensitive to direct stimulus repetition but not basic-level categorical repetition. Because of the high concordance between the response profiles of perceptual and categorical repetition effects, we conclude they arise from a common cognitive mechanism.
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Werner, Kaitlyn M., and Marina Milyavskaya. "We May Not Know What We Want, But Do We Know What We Need? Examining the Ability to Forecast Need Satisfaction in Goal Pursuit." Social Psychological and Personality Science 9, no. 6 (July 21, 2017): 656–63. http://dx.doi.org/10.1177/1948550617720274.

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Do we have the necessary perceptual abilities to set goals that are congruent with our own values and needs? In a prospective study, participants ( n =185) identified three goals that they planned to pursue throughout the week. For each goal, they then rated their motivation for pursuing it and made predictions about the extent to which goal attainment would satisfy their needs for autonomy, competence, and relatedness. One week later, participants rated their progress on each goal, as well as the actual need satisfaction they experienced. Using Bayesian analysis, we found support for our (null) hypothesis that participants predicted that their goals would satisfy their psychological needs, irrespective of goal self-concordance. While people sometimes overestimated need satisfaction, we found that people who pursued more self-concordant goals actually benefited more from their pursuits, both compared to others who pursued less concordant goals and among their own goals.
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Sellars, C., A. E. Stanton, A. McConnachie, C. P. Dunnet, L. M. Chapman, C. E. Bucknall, and K. MacKenzie. "Reliability of perceptions of voice quality: evidence from a problem asthma clinic population." Journal of Laryngology & Otology 123, no. 7 (March 2, 2009): 755–63. http://dx.doi.org/10.1017/s0022215109004605.

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AbstractIntroduction:Methods of perceptual voice evaluation have yet to achieve satisfactory consistency; complete acceptance of a recognised clinical protocol is still some way off.Materials and methods:Three speech and language therapists rated the voices of 43 patients attending the problem asthma clinic of a teaching hospital, according to the grade-roughness-breathiness-asthenicity-strain (GRBAS) scale and other perceptual categories.Results and analysis:Use of the GRBAS scale achieved only a 64.7 per cent inter-rater reliability and a 69.6 per cent intra-rater reliability for the grade component. One rater achieved a higher degree of consistency. Improved concordance on the GRBAS scale was observed for subjects with laryngeal abnormalities. Raters failed to reach any useful level of agreement in the other categories employed, except for perceived gender.Discussion:These results should sound a note of caution regarding routine adoption of the GRBAS scale for characterising voice quality for clinical purposes. The importance of training and the use of perceptual anchors for reliable perceptual rating need to be further investigated.
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Cairolli, Fábio Fabregas, Giordano Marcio Gatinho Bonuzzi, Gisele Carla dos Santos Palma, Marcos Antônio Arlindo Soares, José Eduardo Pompeu, Christina Danielli Coelho de Morais Faria, and Camila Torriani-Pasin. "Development and preliminary research on the measure properties of a perceptual and motor demands assessment protocol for virtual reality systems." Motricidade 13, no. 1 (June 3, 2017): 50. http://dx.doi.org/10.6063/motricidade.8711.

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The virtual reality has been frequently required in rehabilitation settings. However, it still lacks specificity, making it necessary to establish specific criteria to classify the most relevant aspects of electronic games to allow interventions based on virtual reality. Therefore, the purpose of this study is to develop a “Perceptual and motor demands assessment protocol for virtual reality systems” and to investigate its content validity and intra and inter observer agreement. The protocol was created through a literature review including classical studies as well as a review of recent articles about motor behavior, physical training, cognitive neuroscience and virtual reality. The previous versions were presented in study group meetings and congresses, and modified accordingly to suggestions of experts. Three examiners used the final version to analyze twice the total of 20 videos of individuals in a virtual environment and answered a questionnaire about its content validity. Most of the obtained values were classified as “good” (concordance from 80% to 89%) or “excellent” (concordance from 90% to 100%) by the three examiners and the protocol’s content validity was adequate. The protocol is valid, applicable and practical for analyzing different requirements of electronic games in a virtual environment.
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Hori, Miki, Tadasuke Hori, Yuzo Ohno, Shozo Tsuruta, Haruhiko Iwase, and Tatsushi Kawai. "A novel identification method using perceptual degree of concordance of occlusal surfaces calculated by a Python program." Forensic Science International 313 (August 2020): 110358. http://dx.doi.org/10.1016/j.forsciint.2020.110358.

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Martins, Priscila Campos, Thalita Evaristo Couto, and Ana Cristina Côrtes Gama. "Auditory-perceptual evaluation of the degree of vocal deviation: correlation between the Visual Analogue Scale and Numerical Scale." CoDAS 27, no. 3 (June 2015): 279–84. http://dx.doi.org/10.1590/2317-1782/20152014167.

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PURPOSE: To analyze the intra- and inter-rater agreement for visual analog scale and numerical scale in task of sustained vowel and to determine numerical cutoff points to visual analog scale corresponding to the degrees of the numeric scale. METHODS: We selected 205 samples of the usual task of the sustained vowel /a/. Six voice specialists rated the overall degree of vocal deviation, first by visual analog scale and, after two days, by the numeric scale. The results obtained by both scales were compared and the intra- and inter-rater agreement, the correlation between the scales, and the estimated cutoff points using the intraclass correlation and concordance Kappa coefficients, the Spearman coefficient, and analysis of variance, and the values of sensitivity and specificity were analyzed. RESULTS: A strong correlation was observed between the scales. The following numerical cutoff values were found for visual analog scale corresponding to the numerical scale: neutral (degree zero) - 0 to 34 mm; mild (degree one) - 34.1 to 51 mm; moderate (degree two) - 51.1 to 63.5 mm; intense (degree three) - 63.6 to 77.5 mm; and extreme (degree four) - above 77.5 mm. CONCLUSION: The visual analog scale and numerical scale showed a strong correlation, being observed the greater intra- and inter-rater agreement in visual analog scale. Numerical cutoff values for visual analog scale were found. This correlation enables the comparison between the results found in the evaluation of the overall degree of vocal deviation by both scales, which are widely used in research and in the clinical speech therapy routine.
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Vos, Piet G., and Erwin W. Van Geenen. "A Parallel-Processing Key-Finding Model." Music Perception 14, no. 2 (1996): 185–223. http://dx.doi.org/10.2307/40285717.

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A model of key finding is presented for single-voiced pieces of tonal music. Each tone is input as a pitch class and a duration. The model makes a parallel search for the key in the scalar and chordal domains, taking into account primacy and memory constraints. The model has been tested for a range of tonal music including the fugue subjects of J. S. Bach's Wohltemperierte Klavier (WTK). The notated key was usually found after a few processing steps and from then on remained stable— but was still sensitive to modulation. The performance of the parallel-processing model was compared with the performance of key-finding models previously proposed by Krumhansl and Schmuckler and by Longuet-Higgins and Steedman. The comparison showed that the new model's most distinctive features, implementation of parallel key search in the scalar and chordal domains, as well as the implementation of search-restricting factors, primacy and memory, make the new model a powerful and plausible alternative to the other models. Subsequently, the parallel-processing model's perceptual plausibility has been tested in two experiments, in which 20 musically well-trained subjects had to produce the key(s) of eight WTK fugue themes (Experiment 1) and to rate the key transparency for seven contrapuntal variations of the A minor subject of J. S. Bach's Kunst der Fuge (Experiment 2). A substantial concordance between listeners' judgments and the key inferences produced by the model was found in both experiments. Conceptual limitations, such as the model's disregard for the potential impact of recency on key finding and for expectations from functional implications of tone order, are discussed. Potential extensions of the model are suggested, as well as ideas for further perceptual studies in which the model might be tested in a more advanced manner than in the present study.
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Simon, David M., and Mark T. Wallace. "Integration and Temporal Processing of Asynchronous Audiovisual Speech." Journal of Cognitive Neuroscience 30, no. 3 (March 2018): 319–37. http://dx.doi.org/10.1162/jocn_a_01205.

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Multisensory integration of visual mouth movements with auditory speech is known to offer substantial perceptual benefits, particularly under challenging (i.e., noisy) acoustic conditions. Previous work characterizing this process has found that ERPs to auditory speech are of shorter latency and smaller magnitude in the presence of visual speech. We sought to determine the dependency of these effects on the temporal relationship between the auditory and visual speech streams using EEG. We found that reductions in ERP latency and suppression of ERP amplitude are maximal when the visual signal precedes the auditory signal by a small interval and that increasing amounts of asynchrony reduce these effects in a continuous manner. Time–frequency analysis revealed that these effects are found primarily in the theta (4–8 Hz) and alpha (8–12 Hz) bands, with a central topography consistent with auditory generators. Theta effects also persisted in the lower portion of the band (3.5–5 Hz), and this late activity was more frontally distributed. Importantly, the magnitude of these late theta oscillations not only differed with the temporal characteristics of the stimuli but also served to predict participants' task performance. Our analysis thus reveals that suppression of single-trial brain responses by visual speech depends strongly on the temporal concordance of the auditory and visual inputs. It further illustrates that processes in the lower theta band, which we suggest as an index of incongruity processing, might serve to reflect the neural correlates of individual differences in multisensory temporal perception.
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Schilbach, Leonhard, Marcus Wilms, Simon B. Eickhoff, Sandro Romanzetti, Ralf Tepest, Gary Bente, N. Jon Shah, Gereon R. Fink, and Kai Vogeley. "Minds Made for Sharing: Initiating Joint Attention Recruits Reward-related Neurocircuitry." Journal of Cognitive Neuroscience 22, no. 12 (December 2010): 2702–15. http://dx.doi.org/10.1162/jocn.2009.21401.

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The ability and motivation to share attention is a unique aspect of human cognition. Despite its significance, the neural basis remains elusive. To investigate the neural correlates of joint attention, we developed a novel, interactive research paradigm in which participants' gaze behavior—as measured by an eye tracking device—was used to contingently control the gaze of a computer-animated character. Instructed that the character on screen was controlled by a real person outside the scanner, 21 participants interacted with the virtual other while undergoing fMRI. Experimental variations focused on leading versus following the gaze of the character when fixating one of three objects also shown on the screen. In concordance with our hypotheses, results demonstrate, firstly, that following someone else's gaze to engage in joint attention resulted in activation of anterior portion of medial prefrontal cortex (MPFC) known to be involved in the supramodal coordination of perceptual and cognitive processes. Secondly, directing someone else's gaze toward an object activated the ventral striatum which—in light of ratings obtained from participants—appears to underlie the hedonic aspects of sharing attention. The data, therefore, support the idea that other-initiated joint attention relies upon recruitment of MPFC previously related to the “meeting of minds.” In contrast, self-initiated joint attention leads to a differential increase of neural activity in reward-related brain areas, which might contribute to the uniquely human motivation to engage in the sharing of experiences.
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Ciarleglio, Adam J., Gary Brucato, Michael D. Masucci, Rebecca Altschuler, Tiziano Colibazzi, Cheryl M. Corcoran, Francesca M. Crump, et al. "A predictive model for conversion to psychosis in clinical high-risk patients." Psychological Medicine 49, no. 07 (June 28, 2018): 1128–37. http://dx.doi.org/10.1017/s003329171800171x.

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AbstractBackgroundThe authors developed a practical and clinically useful model to predict the risk of psychosis that utilizes clinical characteristics empirically demonstrated to be strong predictors of conversion to psychosis in clinical high-risk (CHR) individuals. The model is based upon the Structured Interview for Psychosis Risk Syndromes (SIPS) and accompanying clinical interview, and yields scores indicating one's risk of conversion.MethodsBaseline data, including demographic and clinical characteristics measured by the SIPS, were obtained on 199 CHR individuals seeking evaluation in the early detection and intervention for mental disorders program at the New York State Psychiatric Institute at Columbia University Medical Center. Each patient was followed for up to 2 years or until they developed a syndromal DSM-4 disorder. A LASSO logistic fitting procedure was used to construct a model for conversion specifically to a psychotic disorder.ResultsAt 2 years, 64 patients (32.2%) converted to a psychotic disorder. The top five variables with relatively large standardized effect sizes included SIPS subscales of visual perceptual abnormalities, dysphoric mood, unusual thought content, disorganized communication, and violent ideation. The concordance index (c-index) was 0.73, indicating a moderately strong ability to discriminate between converters and non-converters.ConclusionsThe prediction model performed well in classifying converters and non-converters and revealed SIPS measures that are relatively strong predictors of conversion, comparable with the risk calculator published by NAPLS (c-index = 0.71), but requiring only a structured clinical interview. Future work will seek to externally validate the model and enhance its performance with the incorporation of relevant biomarkers.
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Dissertations / Theses on the topic "Perceptual concordance"

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Carver, Frances A., and n/a. "Crisis telephone counselling : an exploratory study of outcomes." University of Canberra. Education, 1995. http://erl.canberra.edu.au./public/adt-AUC20060628.122932.

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This exploratory study examined outcomes of single telephone counselling calls, with a self-selected sample of 38 clients from a family counselling agency. The sample was interviewed by telephone at two days and six weeks after the call to assess crisis counselling outcomes in affect, identification of the problem and action taken, and client equilibrium. Repeated measures of the 'perceptual concordance' of counsellor and client were taken over a period of six weeks, assessing levels of concordance between client and counsellor about perceptions of counselling, and client equilibrium. The sufficiency of a single counselling session was also assessed. 'Perceptual concordance' was suggested by reduced client stress, high levels of agreement between client and counsellor in the identification of the problem and agreed action, and satisfaction with the counselling. Positive indicators of restored client equilibrium included a maintenance of lower stress levels, changes in behaviour, improvement in perceptions of the seriousness of the problem, satisfaction with life and with the counselling. Further research of equilibrium as a concept, and an indicator of crisis resolution is warranted. The sufficiency of a single session of counselling was supported by 56% of clients. The variety of services used by clients as an outcome of the counselling suggests that it could be beneficial for telephone counselling agencies to offer a follow-up call. Verifying the agreed action and assessing equilibrium could be useful indicators of effective telephone counselling.
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Book chapters on the topic "Perceptual concordance"

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de los Reyes Melero, Ignacio. "The Body as a System of Concordance and the Perceptual World." In Contributions to Phenomenology, 105–20. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01616-0_6.

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