Early emotion word processing: Evidence from event-related potentials

被引：327

作者：

Scott, Graham G. ^{[1
]}

O'Donnell, Patrick J. ^{[1
]}

Leuthold, Hartmut ^{[1
]}

Sereno, Sara C. ^{[1
]}

机构：

[1] Univ Glasgow, Dept Psychol, Ctr Cognit Neuroimaging, Glasgow G12 8QB, Lanark, Scotland

来源：

BIOLOGICAL PSYCHOLOGY | 2009年 / 80卷 / 01期

关键词：

Emotion words; Event-related potentials; ERPs; Lexical access; Word frequency; P1; N1; EPN; P300; N400; Lexical decision; LEXICAL DECISION; EYE-MOVEMENTS; RECOGNITION; FREQUENCY; VALENCE; INFORMATION; ADJECTIVES; MODULATION; ACTIVATION; MECHANISMS;

D O I：

10.1016/j.biopsycho.2008.03.010

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Behavioral and electrophysiological responses were monitored to 80 controlled sets of emotionally positive, negative, and neutral words presented randomly in a lexical decision paradigm. Half of the words were low frequency and half were high frequency. Behavioral results showed significant effects of frequency and emotion as well as an interaction. Prior research has demonstrated sensitivity to lexical processing in the N1 component of the event-related brain potential (ERP). In this study, the NI (135-180 ms) showed a significant emotion by frequency interaction. The P1 window (80-120 ms) preceding the N1 as well as post-N1 time windows, including the Early Posterior Negativity (200-300 ms) and P300 were examined. The ERP data suggest an early identification of the emotional tone of (300-450 ms), words leading to differential processing. Specifically, high frequency negative words seem to attract additional cognitive resources. The overall pattern of results is consistent with a time line of word recognition in which semantic analysis, including the evaluation of emotional quality, occurs at an early, lexical stage of processing. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：95 / 104

页数：10

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