Differential effects of emotional content on event-related potentials in word recognition memory
Differential effects of emotional content on event-related potentials in word recognition memory
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DOI：
10.1159/000054874
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发表时间：
2001-01-01
影响因子：
3.2
通讯作者：
Münte, TF
中科院分区：
文献类型：
--
作者：
Dietrich, DE;Waller, C;Münte, TF
采用事件相关电位（ERP）技术，探讨被记忆刺激的情绪内容对正常被试再认成绩的影响。当单词被重复呈现时，大脑对重复和识别的项目的反应以更积极的波形为特征，称为“旧/新效应”。根据情感内涵判断的单词（“消极”、“积极”和“中性”）依次出现在视频显示器上，受试者的任务是通过按下两个按钮中的一个来指示给定单词在列表中是第一次出现（“新”）还是第二次出现（“旧”）。对于每一个词的类别，旧的词的ERP更积极的相比，新的项目从刺激后约250 ms。旧/新的效果显着增强的负面和积极的项目相比，中性刺激450和650毫秒之间的刺激后，指向一个显着的影响词的情感内容对文字记忆过程。这一范式似乎是可行的，以探讨精神病患者的情绪和认知的相互作用。版权所有（C）2001 S. Karger AG.巴塞尔。
The aim of this study was to delineate the influence of the emotional content of stimuli to be remembered on the recognition performance of normal subjects by means of the event-related potential (ERP) technique. When words are presented repeatedly, brain responses to repeated and recognized items are characterized by a more positive waveform, referred to as 'old/new effect'. Words judged for their emotional connotation ('negative','positive' and 'neutral') were presented successively on a video monitor to subjects, who had the task to indicate whether a given word occurred for the first ('new') or second ('old') time within the list by pressing one of two buttons. For each word category, the ERPs of the old words were more positive compared to those of the new items from about 250 ms after stimulus. The old/new effect was significantly enhanced for the negative and positive items compared to the neutral stimuli between 450 and 650 ms after stimulus pointing to a significant influence of the emotional content of words on verbal memory processes. This paradigm appears to be feasible to investigate interactions of emotion and cognition in psychiatric patients. Copyright (C) 2001 S. Karger AG. Basel.