心理学
斯特罗普效应
价(化学)
有色的
情感配价
刺激(心理学)
认知心理学
P3b页
事件相关电位
认知
沟通
听力学
颜色术语
神经科学
人工智能
化学
计算机科学
医学
复合材料
有机化学
材料科学
作者
Montserrat Zurrón,Marta Ramos-Goicoa,Fernando Dı́az
出处
期刊:Journal of Psychophysiology
[Hogrefe Publishing Group]
日期:2013-01-01
卷期号:27 (4): 149-164
被引量:13
标识
DOI:10.1027/0269-8803/a000100
摘要
With the aim of establishing the temporal locus of the semantic conflict in color-word Stroop and emotional Stroop phenomena, we analyzed the Event-Related Potentials (ERPs) elicited by nonwords, incongruent and congruent color words, colored words with positive and negative emotional valence, and colored words with neutral valence. The incongruent, positive, negative, and neutral stimuli produced interference in the behavioral response to the color of the stimuli. The P150/N170 amplitude was sensitive to the semantic equivalence of both dimensions of the congruent color words. The P3b amplitude was smaller in response to incongruent color words and to positive, negative, and neutral colored words than in response to the congruent color words and colored nonwords. There were no differences in the ERPs induced in response to colored words with positive, negative, and neutral valence. Therefore, the P3b amplitude was sensitive to interference from the semantic content of the incongruent, positive, negative, and neutral words in the color-response task, independently of the emotional content of the colored words. In addition, the P3b amplitude was smaller in response to colored words with positive, negative, and neutral valence than in response to the incongruent color words. Overall, these data indicate that the temporal locus of the semantic conflict generated by the incongruent color words (in the color-word Stroop task) and by colored words with positive, negative, and neutral valence (in the emotional Stroop task) appears to occur in the range 300–450 ms post-stimulus.
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