Using advance information in dynamic cognitive control: An ERP study of task-switching

被引:68
作者
Swainson, R.
Jackson, S. R.
Jackson, G. M.
机构
[1] Univ Nottingham, Sch Psychol, Nottingham NG7 2RD, England
[2] Queens Med Ctr, Div Psychiat, Nottingham NG7 2UH, England
基金
英国生物技术与生命科学研究理事会;
关键词
executive control;
D O I
10.1016/j.brainres.2006.02.027
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Ensuring that behavior remains appropriate over time requires dynamic, flexible control. We used the task-switching procedure to investigate the mechanisms whereby advance information is used to control behavior under conditions of frequently changing task-rules. The color of target stimuli signaled which task-set (or behavioral 'rule') was required on each trial. We provided different forms of advance information in two conditions and found a double dissociation in their effects: visual precues ('precueing') facilitated task-switching, whereas a fixed task-sequence ('predictability') facilitated task-repetition. In addition, precueing was associated with a late parietal positive ERP which preceded target onset, whereas predictability produced an increase in the target-locked centro-parietal P3b ERP. We suggest that these results indicate the activity of two distinct mechanisms. The first, driven by a task-cue and indexed by the late parietal positivity, may drive efficient task-performance on precued switch trials but occurs too late on non-precued switch trials to index an anticipatory task-set reconfiguration process. The second may constitute active consolidation or maintenance of a particular task-set which occurs at least one trial ahead, when task-repetitions are predictable, and results in facilitation of target stimulus evaluation. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:61 / 72
页数:12
相关论文
共 34 条
[1]  
ALLPORT A, 1994, ATTENTION PERFORM, V15, P421
[2]  
Allport A., 1999, ATTENTION SPACE ACTI, P273
[3]   The Madrid card sorting test (MCST):: a task switching paradigm to study executive attention with event-related potentials [J].
Barceló, F .
BRAIN RESEARCH PROTOCOLS, 2003, 11 (01) :27-37
[4]   Attentional set shifting modulates the target P3b response in the Wisconsin card sorting test [J].
Barceló, F ;
Muñoz-Céspedes, JM ;
Pozo, MA ;
Rubia, FJ .
NEUROPSYCHOLOGIA, 2000, 38 (10) :1342-1355
[5]  
De Jong R, 2000, CONTROL OF COGNITIVE PROCESSES: ATTENTION AND PERFORMANCE XVIII, P357
[6]   Task switching: A PDP model [J].
Gilbert, SJ ;
Shallice, T .
COGNITIVE PSYCHOLOGY, 2002, 44 (03) :297-337
[7]   Switching between simple response-sets: inferences from the lateralized readiness potential [J].
Hsieh, S ;
Yu, YT .
COGNITIVE BRAIN RESEARCH, 2003, 17 (02) :228-237
[8]   ERP correlates of a receptive language-switching task [J].
Jackson, GM ;
Swainson, R ;
Mullin, A ;
Cunnington, R ;
Jackson, SR .
QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY SECTION A-HUMAN EXPERIMENTAL PSYCHOLOGY, 2004, 57 (02) :223-240
[9]  
Jackson GM., 2001, BILING-LANG COGN, V4, P169, DOI DOI 10.1017/S1366728901000268
[10]  
JESILD AT, 1927, ARCH PSYCHOL