Neurophysiological and Behavioural Correlates of Coherent Motion Perception in Dyslexia

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Title: Neurophysiological and Behavioural Correlates of Coherent Motion Perception in Dyslexia
Language: English
Authors: Taroyan, Naira A., Nicolson, Roderick I., Buckley, David
Source: Dyslexia. Aug 2011 17(3):282-290.
Availability: John Wiley & Sons, Inc. 111 River Street, Hoboken, NJ 07030-5774. Tel: 800-825-7550; Tel: 201-748-6645; Fax: 201-748-6021; e-mail: subinfo@wiley.com; Web site: http://www.wiley.com/WileyCDA/WileyTitle/productCd-DYS.html
Peer Reviewed: Y
Physical Description: PDF
Page Count: 9
Publication Date: 2011
Document Type: Journal Articles
Reports - Evaluative
Descriptors: Dyslexia, Motion, Cognitive Processes, Neurological Organization, Correlation, Student Behavior, Adolescents, Comparative Analysis, Visual Stimuli, Diagnostic Tests
DOI: 10.1002/dys.435
ISSN: 1076-9242
Abstract: Coherent motion perception was tested in nine adolescents with dyslexia and 10 control participants matched for age and IQ using low contrast stimuli with three levels of coherence (10%, 25% and 40%). Event-related potentials (ERPs) and behavioural performance data were obtained. No significant between-group differences were found in performance accuracy and response latencies of correct responses, for early (P1, N1, and P2) or late (P3) ERP peaks. However, attenuated early ERPs in the 10% coherent condition correlated significantly with lower performance accuracy (r = -0.66) and with the magnitude of literacy deficit (r = -0.46). (Contains 4 figures, 1 table and 1 footnote.)
Abstractor: As Provided
Number of References: 22
Entry Date: 2011
Accession Number: EJ937022
Database: ERIC
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  Data: Neurophysiological and Behavioural Correlates of Coherent Motion Perception in Dyslexia
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  Data: <searchLink fieldCode="AR" term="%22Taroyan%2C+Naira+A%2E%22">Taroyan, Naira A.</searchLink><br /><searchLink fieldCode="AR" term="%22Nicolson%2C+Roderick+I%2E%22">Nicolson, Roderick I.</searchLink><br /><searchLink fieldCode="AR" term="%22Buckley%2C+David%22">Buckley, David</searchLink>
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  Data: <searchLink fieldCode="SO" term="%22Dyslexia%22"><i>Dyslexia</i></searchLink>. Aug 2011 17(3):282-290.
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  Data: John Wiley & Sons, Inc. 111 River Street, Hoboken, NJ 07030-5774. Tel: 800-825-7550; Tel: 201-748-6645; Fax: 201-748-6021; e-mail: subinfo@wiley.com; Web site: http://www.wiley.com/WileyCDA/WileyTitle/productCd-DYS.html
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  Data: 10.1002/dys.435
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  Data: Coherent motion perception was tested in nine adolescents with dyslexia and 10 control participants matched for age and IQ using low contrast stimuli with three levels of coherence (10%, 25% and 40%). Event-related potentials (ERPs) and behavioural performance data were obtained. No significant between-group differences were found in performance accuracy and response latencies of correct responses, for early (P1, N1, and P2) or late (P3) ERP peaks. However, attenuated early ERPs in the 10% coherent condition correlated significantly with lower performance accuracy (r = -0.66) and with the magnitude of literacy deficit (r = -0.46). (Contains 4 figures, 1 table and 1 footnote.)
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