Mikhailova E S, Davydov D V
Center for Mental Health, Russian Academy of Medical Sciences, Moscow.
Neurosci Behav Physiol. 1999 Nov-Dec;29(6):687-94. doi: 10.1007/BF02462485.
Visual evoked potentials were recorded from the occipital, parietal, central, frontal, and posterior temporal areas of the cortex during recognition of emotionally positive, negative and neutral facial expressions and during passive observation in 22 right-handed healthy subjects. These studies showed that in the posterior temporal areas, the latencies of the N90, P150, and N180 waves of potentials evoked by faces with emotionally negative expressions were significantly shorter than those evoked by other types of facial stimuli. Differences were seen both on recognition and during passive observation. Correct recognition involved both hemispheres and was characterized by high levels of interhemisphere temporal correlation of the processes occurring during the development of the P150 wave in the posterior temporal and the N180 wave in the frontal parts of the cortex. The possible relationship of these data to primary subthreshold recognition of facial expressions in the posterior temporal fields of the cortex is discussed, as is the role of the frontal cortex in completing this process and in taking the correct decision about the nature of the image.
在22名右利手健康受试者识别情绪积极、消极和中性面部表情以及被动观察期间，从皮质的枕叶、顶叶、中央、额叶和颞叶后部区域记录视觉诱发电位。这些研究表明，在颞叶后部区域，情绪消极表情面孔诱发的电位N90、P150和N180波的潜伏期显著短于其他类型面部刺激诱发的潜伏期。在识别和被动观察期间均观察到差异。正确识别涉及两个半球，其特征是在皮质后部颞叶P150波和额叶N180波发展过程中发生的过程半球间时间相关性较高。讨论了这些数据与皮质颞叶后部区域面部表情初级阈下识别的可能关系，以及额叶皮质在完成这一过程和对图像性质做出正确决策中的作用。
