记忆编码与特异性效应之间关系的ERP研究(英文)  

An Event-Related Potential Study on the Relationship Between Encoding and Stimulus Distinctiveness

作　　者：郭春彦[1] 朱滢[2] 丁锦红[1] 范思陆[3] 

机构地区：[1]首都师范大学心理系,北京100037 [2]北京大学心理系,北京100871 [3]中国科学院,北京100039

出　　处：《心理学报》2004年第4期455-463,共9页Acta Psychologica Sinica

基　　金：ThisresearchwassupportedbytheNationalNaturalScienceFoundationofChina (No .3 0 170 3 2 2 ) ;NationalPandengProject ( 95 -SpecialProject-0 9)andtheMinistryofScienceandTechnologyofChina ( 2 0 0 2CCA0 10 0 0 ) .ThisresearchwasconductedintheBeijingKeyLabandi

摘　　要：通过事件相关电位 (ERPs)探讨了在“学习$C再认”模式条件下的记忆编码与特异性效应之间的关系。选择首要特异性特征为深、浅加工 ,次要特异性特征为高、低词频。研究结果表明 ,(1 )行为数据支持了低频词的再认比高频词更精确 ;深加工的再认比浅加工更精确 ,并且深加工存在着显著的字频效应 ,浅加工没有显著的字频效应。 (2 )低频词比高频词有更大的ERP晚正成分 (LPC) ;在低频词条件下 ,存在着显著的相继记忆效应 ,随后再认正确的ERPs比随后再认不正确的ERPs更正。因此 。The relationship between memory encoding and stimulus distinctiveness detection was examined by means of event related potentials (ERP) in a single trial word list learning paradigm with recognition following distraction. To manipulate primary and secondary distinctiveness, encoding of deep vs. shallow processing was contrasted, and encoding of high vs. low frequency words was contrasted. The major results were: (1) According to behavioral results, low frequency words had more accurate recognition than high frequency ones; deep processing had more accurate recognition than shallow processing; and there was a significant main effect of word frequency in deep processing whereas no significant difference in shallow processing. (2) Amplitudes of late positive component (LPC) were larger for low than for high frequency words; for low frequency words, ERPs were more positive for the subsequently recognized than for the unrecognized words. Therefore, encoding success was dependent on indirect processing and word frequency.

关 键 词：事件相关电位 特异性效应 记忆编码 相继记忆效应 词频效应 

分 类 号：B842[哲学宗教—基础心理学]