An electrophysiological analysis of modality-specific aspects of word repetition.
An electrophysiological analysis of modality-specific aspects of word repetition.
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DOI：
10.1111/1469-8986.3650655
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发表时间：
1999-09
期刊：
影响因子：
3.7
通讯作者：
C. Joyce;K. Paller;T. J. Schwartz;M. Kutas
中科院分区：
文献类型：
--
作者：
C. Joyce;K. Paller;T. J. Schwartz;M. Kutas
从学习到测试，当通道变化时，对单词的启动效应降低。这种变化在这里检查使用行为和电生理措施的启动。在研究过程中，一半的单词被视觉呈现，一半被口头呈现;在随后的词汇判断测试中，所有的单词都被视觉呈现。词汇的决定是更快的内比跨模态重复。相比之下，模态只影响低频词的识别。在词汇判断过程中，事件相关脑电位对学习词的反应比对未学习词的反应更积极（200-500 ms）。一个更大和更短的持续时间的影响，观察内比跨模态重复（300-400毫秒）。后一种效应被认为是与启动相关的特定模式处理的电生理指标。结果表明，多个事件-模态特定和模态非特定-的基础知觉启动现象。
Priming effects to words are reduced when modality changes from study to test. This change was examined here using behavioral and electrophysiological measures of priming. During the study, half of the words were presented visually and half auditorally; during a subsequent lexical decision test, all words were presented visually. Lexical decisions were faster for within- than cross-modality repetitions. In contrast, modality influenced recognition only for low-frequency words. During lexical decision, event-related brain potentials were more positive to studied than unstudied words (200-500 ms). A larger and shorter duration effect was observed for within- than cross-modality repetitions (300-400 ms). This later effect is viewed as an electrophysiological index of modality-specific processing associated with priming. Results suggest that multiple events--both modality-specific and modality-nonspecific--underlie perceptual priming phenomena.