ERIC Number: EJ1050778
Record Type: Journal
Publication Date: 2015-Feb
Abstractor: As Provided
Reference Count: 61
An Electrophysiological Investigation of Interhemispheric Transfer Time in Children and Adolescents with High-Functioning Autism Spectrum Disorders
Clawson, Ann; Clayson, Peter E.; South, Mikle; Bigler, Erin D.; Larson, Michael J.
Journal of Autism and Developmental Disorders, v45 n2 p363-375 Feb 2015
Little is known about the functional impact of putative deficits in white-matter connectivity across the corpus callosum (CC) in individuals with autism spectrum disorders (ASDs). We utilized the temporal sensitivity of event-related potentials to examine the interhemispheric transfer time (IHTT) of basic visual information across the CC in youth with high-functioning ASD relative to healthy controls. We conducted two experiments: a visual letter matching experiment (n = 46) and a visual picture matching experiment, (n = 48) and utilized both electrophysiological (N1 and P1 amplitudes and latencies) and behavioral [response times (RTs), error rates] indices of IHTT. There were no significant group differences on either experiment for RTs, error rates, or N1 and P1 latencies, suggesting that on basic tasks the timing of information flow across the CC may not be altered in high functioning ASD.
Descriptors: Autism, Pervasive Developmental Disorders, Children, Adolescents, Brain, Time, Cognitive Processes, Reaction Time, Neurological Organization
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A