Motion perception in autism: a "complex'' issue

被引:223
作者
Bertone, A
Mottron, L
Jelenic, P
Faubert, J
机构
[1] Univ Montreal, Ecole Optometrie, Visual Psychophys & Percept Lab, Montreal, PQ H3C 3J7, Canada
[2] Hop Riviere des Prairies, Montreal, PQ, Canada
关键词
D O I
10.1162/089892903321208150
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We present the first assessment of motion sensitivity for persons with autism and normal intelligence using motion patterns that require neural processing mechanisms of varying complexity. Compared to matched controls, our results demonstrate that the motion sensitivity of observers with autism is similar to that of nonautistic observers for different types of first-order (luminance-defined) motion stimuli, but significantly decreased for the same types of second-order (texture-defined) stimuli. The latter class of motion stimuli has been demonstrated to require additional neural computation to be processed adequately. This finding may reflect less efficient integrative functioning of the neural mechanisms that mediate visuoperceptual processing in autism. The contribution of this finding with regards to abnormal perceptual integration in autism, its effect on cognitive operations, and possible behavioral implications are discussed.
引用
收藏
页码:218 / 225
页数:8
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