Besson M, Faita F, Czternasty C, Kutas M
Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France.
Biol Psychol. 1997 Jun 20;46(1):3-23. doi: 10.1016/s0301-0511(96)05215-5.
Two experiments examined the effects of disrupting the temporal patterns that develop during sentence reading and listening. Sentences were presented either visually, one word at a time (Experiment 1) or as natural speech (Experiment 2). Half of the sentences were familiar (proverbs or idioms) while the other half were constructed anew for these experiments. Within half the sentences, there was an unexpected 600-ms delay between the final two words. In both modalities, the amplitude of the N400 component of the event-related brain potential (ERP) to sentence final words was larger for unfamiliar than familiar sentences. The results in the two modalities differed, however, in that a Contingent Negative Variation (CNV) developed during the delay interval in the visual modality, whereas in the auditory modality the delay was marked by an emitted potential. The present results show that temporal patterns are processed differently in natural speech and in reading words presented one at a time in the center of a computer screen.
两项实验研究了打乱句子阅读和听力过程中形成的时间模式所产生的影响。句子通过视觉呈现，一次一个单词（实验1）或作为自然语音呈现（实验2）。一半的句子是常见的（谚语或习语），而另一半是为这些实验新构建的。在一半的句子中，最后两个单词之间意外出现了600毫秒的延迟。在两种呈现方式中，与事件相关的脑电位（ERP）中N400成分对句子末尾单词的幅度，不熟悉的句子比熟悉的句子更大。然而，两种呈现方式的结果有所不同，即视觉呈现方式中在延迟间隔期间出现了伴随负变化（CNV），而在听觉呈现方式中，延迟以一个发出的电位为特征。目前的结果表明，自然语音和在电脑屏幕中央一次呈现一个单词的阅读中，时间模式的处理方式不同。
