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首页> 外文期刊>Neuroscience Letters: An International Multidisciplinary Journal Devoted to the Rapid Publication of Basic Research in the Brain Sciences >Word frequency modulates the processing of emotional words: convergent behavioral and electrophysiological data.
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Word frequency modulates the processing of emotional words: convergent behavioral and electrophysiological data.

机译：词频调节情感词的处理：聚合的行为和电生理数据。

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摘要

The processing of high frequency (HF) words is speeded as compared to the processing of low frequency (LF) words, which is known as the word frequency effect. This effect has been suggested to occur at either a lexical access or in a decision processing stage. Previous work has shown that word frequency influenced the processing of emotional content at both neural and behavioral levels. However, the results of these studies lead to discrepant findings because some of the variables that have shown to impact the processing of affective information were not always controlled. In order to make a better characterization of frequency effects on emotional word processing, event related potentials (ERPs) and reaction times to HF and LF negative and neutral nouns were measured as participants performed a lexical decision task. Temporal and spatial component analyses were used to detect and quantify, in a reliable way, those components associated with the interaction between word frequency and emotion. LF negative nouns were recognized faster and more accurately than LF neutral nouns whereas no differences were found in the HF word comparison. Also, LF neutral words elicited reduced amplitudes in a late positive component (P450) as compared to LF negative words. These findings might be reflecting a different involvement of attentional mechanisms during the evaluation of lexical information that benefits the processing of LF negative nouns.
机译：与低频（LF）字的处理相比，高频（HF）字的处理速度加快，这被称为字频效果。已经建议这种效果发生在词汇访问或决策处理阶段。先前的研究表明，单词频率在神经和行为层面上都会影响情感内容的处理。但是，这些研究的结果导致发现结果不一致，因为某些影响情感信息处理的变量并非总是受控的。为了更好地表征频率对情感词处理的影响，在参与者执行词汇决策任务时，测量了事件相关电位（ERP）和对HF和LF负数和中性名词的反应时间。时空成分分析用于以可靠的方式检测和量化与词频和情绪之间的相互作用相关的那些成分。 LF否定名词比LF中性名词更快，更准确地被识别，而HF单词比较中没有发现差异。同样，与LF否定词相比，LF中性词引起了后期正成分（P450）幅度的减小。这些发现可能反映了在词汇信息评估过程中注意机制的不同参与，这有助于处理LF否定名词。

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