Instituto Pluridisciplinar, Universidad Complutense de Madrid, 28040 Madrid, Spain.
Psychophysiology. 2010 Jul 1;47(4):748-57. doi: 10.1111/j.1469-8986.2010.00982.x. Epub 2010 Feb 11.
Recent research suggests that the allocation of attentional resources to emotional content during word processing might be sensitive to task requirements. This question was investigated in two tasks with similar instructions. The stimuli were positive, negative, and neutral nouns. Participants had to identify meaningful words embedded in a stream of non-recognizable stimuli (task 1) or pseudowords (task 2). Task 1 could be successfully performed on the basis of the perceptual features whereas a lexico-semantic analysis was required in task 2. Effects were found only in task 2. Positive nouns were identified faster, with fewer errors and elicited larger amplitude in an early negativity. Also, the amplitude of a late positivity was larger for both positive and negative nouns than for neutral nouns. It is concluded that some degree of linguistic processing is needed to direct attention to the affective content during word processing.
最近的研究表明，在单词处理过程中，注意力资源对情绪内容的分配可能对任务要求敏感。本研究在两个具有相似指令的任务中对此问题进行了调查。刺激物为积极、消极和中性名词。参与者必须在非可识别刺激（任务 1）或伪词（任务 2）的流中识别嵌入的有意义的单词。任务 1可以基于感知特征成功完成，而任务 2则需要词汇语义分析。仅在任务 2中发现了效果。积极名词的识别速度更快，错误更少，并且在早期负性中引发的振幅更大。此外，与中性名词相比，积极名词和消极名词都引起更大的晚期正性波振幅。结论是，在单词处理过程中，需要一定程度的语言处理来引导对情感内容的注意。
