Attention shift in human verbal working memory: Priming contribution and   dynamic brain activation

doi:10.1016/j.brainres.2006.01.032

CORC > 北京大学 > 心理与认知科学学院

	Attention shift in human verbal working memory: Priming contribution and dynamic brain activation
	Li, ZH ; Bao, M ; Chen, XC ; Zhang, DR ; Han, SH ; He, S ; Hu, XP
刊名	脑研究
	2006
关键词	attention shift working memory event-related potential ANTERIOR CINGULATE CORTEX EVENT-RELATED FMRI PREFRONTAL CORTEX ERROR-DETECTION COMPONENTS COGNITION IMAGERY TIME SET ERP
DOI	10.1016/j.brainres.2006.01.032
英文摘要	When multiple items in working memory need to be accessed and manipulated, the internal attention should switch between them and, this switching process is time consuming (H. Garavan. Serial attention within working memory. Mem. Cognit. 26 (1998) 263-276). However, it is not clear how much of this switching cost is due to the existence or absence of the stimulus identification priming. With a figure identification and counting task, we demonstrate a small but significant priming contribution to this attention-switching cost. Furthermore, through 64-channel event-related potential (ERP) recordings, we found two ERP correlates (at 280 ms and 388 ms) of this internal attention -switching function. Source localization analysis shows dynamic brain activation starts from the temporal-occipital region and finishes in the left prefrontal cortex. The occipital-prefrontal and cingulate-prefrontal co-activations were orderly observed. We discuss the present ERP results along with our previous fMRI findings and suggest a dominant role of the left prefrontal cortex associated with attention shifts in verbal working memory. (c) 2006 Elsevier B.V. All rights reserved.; Neurosciences; SCI(E); SSCI; 0; ARTICLE; 131-142; 1078
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/252246]
专题	心理与认知科学学院
推荐引用方式 GB/T 7714	Li, ZH,Bao, M,Chen, XC,et al. Attention shift in human verbal working memory: Priming contribution and dynamic brain activation[J]. 脑研究,2006.
APA	Li, ZH.,Bao, M.,Chen, XC.,Zhang, DR.,Han, SH.,...&Hu, XP.(2006).Attention shift in human verbal working memory: Priming contribution and dynamic brain activation.脑研究.
MLA	Li, ZH,et al."Attention shift in human verbal working memory: Priming contribution and dynamic brain activation".脑研究 (2006).