期刊
SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE
卷 1, 期 3, 页码 194-202出版社
OXFORD UNIV PRESS
DOI: 10.1093/scan/nsl030
关键词
high-functioning autism; eye movements; saliency; attention
资金
- NIMH
- Cure Autism Now Foundation
- Autism Speaks
People with autism are impaired in their social behavior, including their eye contact with others, but the processes that underlie this impairment remain elusive. We combined high-resolution eye tracking with computational modeling in a group of 10 high-functioning individuals with autism to address this issue. The group fixated the location of the mouth in facial expressions more than did matched controls, even when the mouth was not shown, even in faces that were inverted and most noticeably at latencies of 200-400 ms. Comparisons with a computational model of visual saliency argue that the abnormal bias for fixating the mouth in autism is not driven by an exaggerated sensitivity to the bottom-up saliency of the features, but rather by an abnormal top-down strategy for allocating visual attention.
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