Laterality Biases to Chimeric Faces in Asperger Syndrome: What is Right About Face-Processing?

被引:0
作者
Chris Ashwin
Sally Wheelwright
Simon Baron-Cohen
机构
[1] University of Cambridge,Departments of Psychology and Psychiatry, Autism Research Centre
[2] University of Cambridge,Departments of Psychology and Psychiatry, Autism Research Centre
来源
Journal of Autism and Developmental Disorders | 2005年 / 35卷
关键词
Asperger syndrome; autism; face-processing; social cognition; brain laterality; emotional expression;
D O I
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中图分类号
学科分类号
摘要
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 non-social 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.
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页码:183 / 196
页数:13
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