An electrophysiological signature for proactive interference resolution in working memory

被引：13

作者：

Du, Yingchun ^{[1
,2
]}

Xiao, Zhuangwei ^{[2
]}

Song, Yan ^{[3
]}

Fan, Silu ^{[4
]}

Wu, Renhua ^{[1
]}

Zhang, John X. ^{[2
,5
]}

机构：

[1] Shantou Univ, Affiliated Hosp 2, Dept Med Imaging, Coll Med, Shantou, Peoples R China

[2] Shantou Univ, Coll Med, Guangdong Prov Key Lab Med Mol Imaging, Shantou, Peoples R China

[3] Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China

[4] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

[5] Chinese Univ Hong Kong, Dept Psychol, Hong Kong, Hong Kong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY | 2008年 / 69卷 / 02期

基金：

中国国家自然科学基金;

关键词：

proactive interference; ERP; N2; familiarity; context;

D O I：

10.1016/j.ijpsycho.2008.03.007

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

We used event-related potentials (ERPs) to study the temporal dynamics of proactive interference in working memory. Participants performed a Sternberg item-recognition task to determine whether a probe was in a target memory set. Familiar negative probes were found to be more difficult to reject than less familiar ones. A fronto-central N2 component peaking around 300 ms post-probe-onset differentiated among target probes, familiar and less familiar non-target probes. The study identifies N2 as the ERP signature for proactive interference resolution. It also indicates that the resolution process occurs in the same time window as target/non-target discrimination and provides the first piece of electrophysiological evidence supporting a recent interference resolution model based on localization data [Jonides, J., Nee, D.E., 2006. Brain mechanisms of proactive interference in working memory. Neuroscience 139,181-193]. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：107 / 111

页数：5

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