SEMANTIC PROCESSING AND MEMORY FOR ATTENDED AND UNATTENDED WORDS IN DICHOTIC-LISTENING - BEHAVIORAL AND ELECTROPHYSIOLOGICAL EVIDENCE
SEMANTIC PROCESSING AND MEMORY FOR ATTENDED AND UNATTENDED WORDS IN DICHOTIC-LISTENING - BEHAVIORAL AND ELECTROPHYSIOLOGICAL EVIDENCE
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DOI：
10.1037/0096-1523.21.1.54
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发表时间：
1995-02-01
影响因子：
2.1
通讯作者：
HILLYARD, SA
中科院分区：
文献类型：
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作者：
BENTIN, S;KUTAS, M;HILLYARD, SA
32 名 Ss 研究了向一只耳朵呈现的单词，而忽略了向另一只耳朵同时呈现的单词列表。由参与的单词引发的事件相关电位的 N400 分量通过连续单词之间的语义启动进行调节。由无人看管的单词引发的 N400 对语义操作不敏感。参与的单词的识别记忆比未完成的单词更好。然而，对于语义上与“旧”单词相关的诱饵，无论它们是否已被注意到或未附着，误报的百分比都同样升高。最初被关注的单词在词汇决策任务中包括与最初未被关注的单词类似的重复效果。因此，有人参与和无人参与的单词都经过语义处理并激活语义表示。然而，被关注的单词形成的痕迹比未被关注的单词更容易被有意识的记忆所利用。
Thirty-two Ss studied words presented to 1 ear, while ignoring a concurrent word list presented to the opposite ear. The N400 component of the event-related potentials elicited by attended words was modulated by semantic priming between successive words. The N400 elicited by unattended words was insensitive to semantic manipulation. Recognition memory was better for attended than for unattained words. However, the percentage of false positives was elevated equally for lures that were semantically related to ''old'' words, whether they had been attended or unattached. Words that were initially attended included similar repetition effects in a lexical decision task as words that were initially unattended. Hence, both attended and unattended words are semantically processed and activate semantic representations. However, attended words form traces that are subsequently more available to conscious recollection than unattended words.