对面部刺激的不对称诱发电位。

Asymmetrical evoked potentials in response to face stimuli.

作者信息

Small M

出版信息

Cortex. 1983 Dec;19(4):441-50. doi: 10.1016/s0010-9452(83)80026-4.

Abstract

Evoked potentials were recorded from temporal, parietal and occipital regions in normal right-handed controls during presentation of known and unknown faces, geometric designs and pattern reversal. The results show a significant right greater than left amplitude asymmetry of P300 for face stimuli but not for geometric designs or pattern reversal. P100 showed no such asymmetry. The results provide physiological evidence to suggest that there is an interhemispheric difference in the processing of faces.

摘要

在正常右利手对照者观看已知和未知面孔、几何图形以及图形翻转时，记录其颞叶、顶叶和枕叶区域的诱发电位。结果显示，面部刺激时P300的波幅存在显著的右侧大于左侧的不对称性，而几何图形或图形翻转时则不存在这种不对称性。P100未显示出这种不对称性。这些结果提供了生理学证据，表明在面孔加工过程中存在半球间差异。