Electrophysiological estimates of the time course of semantic and phonological encoding during implicit picture naming
Electrophysiological estimates of the time course of semantic and phonological encoding during implicit picture naming
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DOI：
10.1111/1469-8986.3740473
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发表时间：
2000-07-01
期刊：
影响因子：
3.7
通讯作者：
Kutas, M
中科院分区：
文献类型：
--
作者：
Schmitt, BM;Münte, TF;Kutas, M
使用两种不同的事件相关电位（ERP）组件来研究隐式图片命名过程中语义和语音编码的时间处理。向参与者展示图片，并根据语义信息（即图片是物体还是动物）和语音信息（即图片的名称是否以元音或辅音开头）进行双重选择。除了已经建立的侧化准备潜力（LRP；与反应准备相关）之外，我们还引入了 N200（可能与反应抑制相关）作为测量在线语言处理的工具。 LRP 和 N200 数据都表明语义处理开始得早于语音处理。这些数据是在语言产生模型的背景下讨论的。其中，LRP 和 N200 结果综合起来，有利于语言产生的串行或级联处理模型，而不是并行处理帐户。
Two different event-related potential (ERP) components were used to investigate the temporal processing of semantic and phonological encoding during implicit picture naming. Participants were shown pictures and carried out a dual choice go/nogo decision based on semantic information (i.e., whether the picture was of an object or an animal) and phonological information (i.e., whether the picture's name starts with a vowel or a consonant). In addition to the already established lateralized readiness potential (LRP; related to response preparation), we introduce the N200 (presumably related to response inhibition) as a tool for measuring online language processing. Both, the LRP and the N200 data indicated that semantic processing began earlier than phonological processing. The data are discussed in the context of language production models. Therein, the LRP and N200 results, taken together, favor a serial or cascaded processing model of language production in contrast to a parallel processing account.