摘要
采用快速掩蔽启动范式、Go/No-go范式和事件相关电位(ERP)技术,探讨蒙语词汇识别过程中语音自动激活的时程及对语义通达的作用。实验中要求被试执行一个额外的语义分类任务,对关键刺激不做明显的行为反应。结果发现,SOA为67ms时,语音启动在头皮的额区诱发了明显的P150和N400成分;SOA为167ms时,语音启动在头皮的额区和中央区诱发了明显的P200成分,在整个大脑皮层诱发了明显的N400成分。结果表明,语音在蒙语词汇识别的早期自动激活并促进语义的通达。
In the current study, we investigated the time course of the automatic phonological activation and its role in Mongolian words recognition combining the rapidly masked priming paradigm event related potential （ERP） technology. Participants were instructed to perform not response to the critical prime or target stimuli. The results showed that the and Go/No-go paradigm with the a semantic categorization task but P150 and N400 components were significant induced under the phonological priming in frontal area of brain cortex in the short SOA. There was a significant P200 component in frontal and central areas and N400 component in the whole brain cortex areas in the long SOA. These finding suggested that phonological codes is an automatic process in early stage of Mongo- lian words recognition and facilitates the later semantic activation.
出处
《心理与行为研究》
CSSCI
2012年第3期177-182,共6页
Studies of Psychology and Behavior
基金
教育部人文社会科学重点研究基地重大项目(08JJDXLX266)
国家自然科学基金资助项目(30960106)
内蒙古高等学校科学研究项目(NJ10037)的资助
关键词
蒙语
词汇识别
语音启动
ERP
mongolian, word recognition, phonology priming, ERP.
