阈下情绪词对大脑半球功能不对称性的影响。

The influence of subliminal emotional words on functional hemispheric asymmetry.

作者信息

Kostandov E A

出版信息

Int J Psychophysiol. 1986 Jul;4(2):143-7. doi: 10.1016/0167-8760(86)90007-3.

Abstract

The P300 component of the evoked potential was recorded over both hemispheres in order to study interhemispheric differences in the process of perception of subliminal verbal stimuli. The stimuli--subliminal words, neutral and emotional--were presented at random to the left or right visual fields. In response to an unrecognized emotional word, the amplitude of P300 wave increased diffusely over both hemispheres as compared to that to a neutral word, with no changes in interhemispheric differences. The interhemispheric difference changed considerably in the presence of an 'unaccountable' emotion caused by a subliminal word. This suggests a unilateral activation of the right hemisphere and a predominant role of this hemisphere in the cortical organization of the unconscious function 'unaccountable' emotion.

摘要

为了研究阈下言语刺激感知过程中的半球间差异，在两个半球上记录诱发电位的P300成分。阈下单词、中性词和情感词等刺激随机呈现于左视野或右视野。与中性词相比，对未被识别的情感词的反应中，P300波的波幅在两个半球上均呈弥漫性增加，半球间差异无变化。在阈下词引发“无法解释”的情感时，半球间差异发生了显著变化。这表明右半球的单侧激活以及该半球在无意识功能“无法解释”的情感的皮质组织中起主要作用。