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N400 elicited by incongruent ending words of Chinese idioms in healthy adults

ISSN号：0366-6999
期刊名称：Chinese Medical Journal
时间：0
页码：686-689
语言：英文
分类：R[医药卫生]
作者机构：[1]Department of Electrophysiology,Shanghai Mental Health Center,Shanghai Jiao Tong University,Shanghai 200030,China, [2]Department of Psychology,Faculty of Health Service,Second Military Medical University of People's Liberation Army,Shanghai 200433,China, [3]Department of Psychiatry,Shanghai Mental Health Center,Shanghai Jiao Tong University,Shanghai 200030,China, [4]Department of Electronic Ephalography Source Imaging,Shanghai Mental Health Center,Shanghai Jiao Tong University,Shanghai 200030,China, [5]Department of Psychiatry,Second Hospital of Jinhua City,Jinhua,Zhejiang 321016,China, [6]Department of Psychiatry,Ningbo Kangning Hospital,Ningbo,Zhejiang 315201,China
相关基金：This study was supported by the grants from the National Natural Science Foundation of China （No. 30770772 and No. 30971046）, the Fund of the Municipal Committee of Shanghai Science and Technology （No. 09411968200）, the Joint Key Project of New Frontier Technology in Shanghai Municipal Hospitals （No. SHDC12006105） and the National High Technology Research and Development Program of China （No. 2008AA02Z412 and No. 2007AA02Z420）.
相关项目：精神分裂症的事件相关电位-汉语成语/方言N400和神经发生源研究及其临床随访

关键词：健康成年人, N400, 结束的词, 中国习语, healthy adult, N400, ending words, Chinese idioms

中文摘要：

关于 N400 的背景优先的研究主要基于英语刺激，当汉字的 cognitive.processing 仍然是礼品的 unclear.The 目的时，学习是进一步调查中国 idioms.Methods 事件相关潜力( ERP )的语义处理部件 N400 被 38 匹配得到(适合)并且错配(不一致)有一样的音素的结束中国 idioms:ending 词但是不同形状和意思( sPdSdM )，与类似的形状但是不同 phonem

英文摘要：

Background Prior research about N400 has been mainly based on English stimuli,while the cognitive.processing of Chinese characters is still unclear.The aim of the present study was to further investigate the semantic processing of Chinese idioms.Methods Event related potentials （ERP） component N400 was elicited by 38 pairs of matching （congruent） and mismatching （incongruent） ended Chinese idioms：ending words with same phoneme but different shape and meaning （sPdSdM）,with similar shape but different phoneme and meaning（sSdPdM）,with same meaning but different phoneme and shape（sMdPdS）,and words with different phoneme,shape and meaning（dPdSdM）and recorded by Guangzhou Runjie WJ-1 ERP instruments.In 62 right-handed healthy adults（age 19-50 years）,N400 amplitudes and latencies were compared between matching and mismatching conditions at Fz,Cz and Pz.Results N400 showed a midline distribution and could be elicited in electrodes Fz, Cz and Pz.The mean values of N400 latencies and amplitudes were obtained for matching and mismatching ending werds in healthy adults.Significant differences were found in N400 latencies and amplitudes in matching and mismatching ending-werds idioms in healthy adults（P〈0.05）.Compared with matching ending-werds jdioms, N400 latencies were prolonged and the amplitudes were increased in mismatching ones.N400s elicited by different types of stimuli showed different latencies and amplitudes.and longest N400 latency and largest N400 amplitude were elicited by ending-werds with dPdSdM.No gender difference was found of N400 latency and amplitude in this study （P〉0.05）.Conclusions Compared with English stimuli.Chinese ideographic words could provide more flexible stimuli for N400 research in that the werds have 3-dimension changes-phoneme.shape and meaning.Features of N400 elicited by matching and mismatching ending words in Chinese idioms are mainly determined by the meaning of the werd.Some issues of N400 elicited by Chinese characters deserve further r

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