Expert face processing requires visual input to the right hemisphere during infancy

被引:206
作者
Le Grand, R
Mondloch, CJ
Maurer, D
Brent, HP
机构
[1] McMaster Univ, Dept Psychol, Hamilton, ON L8S 4K1, Canada
[2] Hosp Sick Children, Toronto, ON M5G 1X8, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1038/nn1121
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Adult expertise in face processing is mediated largely by neural networks in the right hemisphere. Here we evaluate the contribution of early visual input in establishing this neural substrate. We compared visually normal individuals to patients for whom visual input had been restricted mainly to one hemisphere during infancy. We show that early deprivation of visual input to the right hemisphere severely impairs the development of expert face processing, whereas deprivation restricted mainly to the left hemisphere does not. Our results indicate that the neural circuitry responsible for adults' face expertise is not pre-specified, but requires early visual experience. However, the two hemispheres are not equipotent: only the right hemisphere is capable of using the early input to develop expertise at face processing.
引用
收藏
页码:1108 / 1112
页数:5
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