Getting ready to remember: the neural correlates of task set during recognition memory

被引：30

作者：

Morcom, AM

Rugg, MD

机构：

[1] UCL, Inst Cognit Neurosci, London WC1N 3AR, England

[2] UCL, Dept Psychol, London WC1N 3AR, England

来源：

NEUROREPORT | 2002年 / 13卷 / 01期

关键词：

episodic retrieval; event-related potential; recognition memory; retrieval mode; task set; task switching;

D O I：

10.1097/00001756-200201210-00034

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Event-related potentials (ERPs) were employed to investigate the neural correlates of episodic and semantic task sets. ERPs elicited by cues signalling an upcoming recognition memory test trial showed a sustained positivity relative to those signalling an upcoming semantic test trial, lasting from 500 ms post-cue until the arrival of the test item. However, this effect was present only on the second successive trial on which subjects performed the recognition task. Thus, when episodic vs semantic tasks vary trial-by-trial, the establishment of a recognition memory task-set is not achieved within a single trial. The findings are discussed in relation to the notion of episodic retrieval mode. NeuroReport 13:149-152 (C) 2002 Lippincott Williams Wilkins.

引用

页码：149 / 152

页数：4