Ashwin Chris, Wheelwright Sally, Baron-Cohen Simon
Department of Psychology and Psychiatry, Autism Research Centre, University of Cambridge, Cambridge, UK.
J Autism Dev Disord. 2005 Apr;35(2):183-96. doi: 10.1007/s10803-004-1997-3.
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.
人们对面孔存在左视野（LVF）偏向，即涉及大脑右半球。损伤和神经影像学研究证实了右半球的重要性，并表明处理面部身份与情绪存在可分离的神经通路。我们使用面部情绪和身份嵌合体任务，研究了患有和未患有阿斯伯格综合征（AS）的成年人对面孔的半球加工情况。对照组在两项任务中均表现出左视野偏向，但在非社会性对照任务中没有感知偏向。AS组在两项任务中均表现出左视野偏向，然而在身份条件下该偏向有所减少。此外，AS组在非社会性条件下也表现出左视野偏向。这些结果显示了AS患者对面孔半球加工的差异模式。
