Orientation to learning context modulates retrieval processing for unrecognized words  

作　　者：GUO ChunYan CHEN WenJun TIAN Tian Ken A PALLER Joel L VOSS 

机构地区：[1]'Learning & Cognition'Beijing Key Laboratory, Department of Psychology, Education Science College, Capital Normal University, Beijing 100048, China [2]Department of Psychology and Interdepartmental Neuroscience Program, Northwestern University, Evanston, Illinois, USA [3]Beckman Institute, University of Illinois Urbana-Champaign, Urbana, Illinois, USA [4]Key Laboratory of Mental Health, Chinese Academy of Sciences, Beijing 100101, China

出　　处：《Chinese Science Bulletin》2010年第26期2966-2973,共8页

基　　金：supported by the National Natural Science Foundation of China (30570603 and 30870760);the Key Foundation of Beijing Municipal Commission of Education (KZ201010028029)

摘　　要：Explicit memory errors may occur when individuals fail to retrieve information about items previously studied (item memory) or about the learning context (source memory). We examined electrophysiological measures during recognition failure in order to determine the influence of retrieval orientation for item versus source information. Recognition failure was associated with brain potentials distinct from those associated with success. Furthermore, source-memory failures were associated with earlier-onset brain potentials with a more anterior distribution compared to item-memory failures. Neurocognitive processing was thus modulated by retrieval orientation so as to differentially influence neural correlates of successful versus unsuccessful retrieval.Explicit memory errors may occur when individuals fail to retrieve information about items previously studied （item memory） or about the learning context （source memory）. We examined electrophysiological measures during recognition failure in order to determine the influence of retrieval orientation for item versus source information. Recognition failure was associated with brain potentials distinct from those associated with success. Furthermore, source-memory failures were associated with earlier-onset brain potentials with a more anterior distribution compared to item-memory failures. Neurocognitive processing was thus modu- lated by retrieval orientation so as to differentially influence neural correlates of successful versus unsuccessful retrieval.

关 键 词：学习环境 检索 环境调节 词处理 取向 内存故障 内存分配 加工调制 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] TQ330.7[自动化与计算机技术—计算机科学与技术]