期刊
NEUROPSYCHOLOGIA
卷 43, 期 3, 页码 373-385出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuropsychologia.2004.06.015
关键词
face processing; social cognition; fusiform face area (FFA); Digimon/Pokemon; perceptual expertise; face module
资金
- EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH &HUMAN DEVELOPMENT [P01HD035482, P01HD003008] Funding Source: NIH RePORTER
- NICHD NIH HHS [P01 HD/DC35482, P01 HD 03008] Funding Source: Medline
Abnormal hypoactivation in the amygdala and fusiform gyrus, brain areas that participate in face processing and social cognition, has consistently been demonstrated in persons with autism. We investigated activity in these areas in a boy with autism, DD, who had a special interest in Digimon cartoon characters. DD individuates Digimon faster than familiar faces and objects, but he individuates familiar faces no faster than objects. In contrast, a typically developing boy with an interest in Pokemon cartoon characters is equally fast at individuating faces and Pokemon and faster at individuating faces and Pokemon than objects and Digimon. In addition, using functional magnetic resonance imaging (fMRI), we show that DD activates his amygdala and fusiform gyrus for perceptual discriminations involving Digimon but not for those involving familiar or unfamiliar faces. This pattern of activation is not seen in the typically developing control with an interest in Pokemon or in a second comparison case who has autism but no interest in Digimon. These results have important implications for our understanding of autism, cortical face specialization, and the possible role of the amygdala in the development of perceptual expertise. (c) 2004 Elsevier Ltd. All rights reserved.
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