ERIC Number: EJ735577
Record Type: Journal
Publication Date: 2005-Apr
Laterality Biases to Chimeric Faces in Asperger Syndrome: What Is Right about Face-Processing?
Ashwin, Chris; Wheelwright, Sally; Baron-Cohen, Simon
Journal of Autism and Developmental Disorders, v35 n2 p183-196 Apr 2005
People show a left visual field (LVF) bias for faces, i.e., involving the right hemisphere of the brain. Lesion and neuroimaging studies confirm the importance of the right-hemisphere and suggest separable neural pathways for processing facial identity vs. emotions. We investigated the hemispheric processing of faces in adults with and without Asperger syndrome (AS) using facial emotion and identity chimeric tasks. Controls showed an LVF bias in both tasks, but no perceptual bias in a nonsocial control task. The AS group showed an LVF bias during both tasks, however the bias was reduced in the identity condition. Further, the AS group showed an LVF bias in the non-social condition. These results show a differential pattern of hemispheric processing of faces in AS.
Descriptors: Human Body, Asperger Syndrome, Cognitive Processes, Bias, Brain Hemisphere Functions, Adults, Psychological Patterns
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A