Chen Tingji, Peltola Mikko J, Ranta Lotta J, Hietanen Jari K
Human Information Processing Laboratory, School of Social Sciences and Humanities/Psychology, University of Tampere Tampere, Finland.
Front Hum Neurosci. 2016 Dec 7;10:619. doi: 10.3389/fnhum.2016.00619. eCollection 2016.
The present study employed the affective priming paradigm and measurements of event-related potentials (ERPs) to investigate implicit affective reactions elicited by gaze stimuli. Participants categorized positive and negative words primed by direct gaze, averted gaze and closed eyes. The behavioral response time (RT) results indicated that direct gaze implicitly elicited more positive affective reactions than did closed eyes. Analyses of the ERP responses to the target words revealed a priming effect on the N170 and an interaction on late positive potential (LPP) responses, and congruently with the behavioral results, suggested that, compared to closed eyes, direct gaze was affectively more congruent with positive words and more incongruent with negative words. The priming effect on the N170 response indicated that gaze stimuli influenced the subsequent affective word processing at an early stage of information processing. In conclusion, the present behavioral and electrophysiological evidence suggests that direct gaze automatically activates more positive affective reactions than closed eyes.
本研究采用情感启动范式和事件相关电位(ERP)测量方法,以探究注视刺激引发的内隐情感反应。参与者对由直接注视、回避注视和闭眼启动的积极和消极词汇进行分类。行为反应时间(RT)结果表明,与闭眼相比,直接注视会内隐地引发更多积极的情感反应。对目标词的ERP反应分析揭示了对N170的启动效应以及晚期正电位(LPP)反应的交互作用,并且与行为结果一致,表明与闭眼相比,直接注视在情感上与积极词汇更一致,与消极词汇更不一致。对N170反应的启动效应表明,注视刺激在信息处理的早期阶段影响了随后的情感词汇加工。总之,目前的行为和电生理证据表明,与闭眼相比,直接注视会自动激活更多积极的情感反应。