ERPs and oscillations during encoding predict retrieval of digit memory   in superior mnemonists

doi:10.1016/j.bandc.2017.06.012

CORC > 北京大学 > 心理与认知科学学院

	ERPs and oscillations during encoding predict retrieval of digit memory in superior mnemonists
	Pan, Yafeng ; Li, Xianchun ; Chen, Xi ; Ku, Yixuan ; Dong, Yujie ; Dou, Zheng ; He, Lin ; Hu, Yi ; Li, Weidong ; Zhou, Xiaolin
刊名	BRAIN AND COGNITION
	2017
关键词	Superior memory Digit-image mnemonic Even-/odd-position P2 High-alpha oscillation EVENT-RELATED POTENTIALS TERM WORKING-MEMORY ALPHA OSCILLATIONS MENTAL-IMAGERY STROOP TASK VISUAL-STIMULI ATTENTION BAND INHIBITION MEMORIZATION
DOI	10.1016/j.bandc.2017.06.012
英文摘要	Previous studies have consistently demonstrated that superior mnemonists (SMs) outperform normal individuals in domain-specific memory tasks. However, the neural correlates of memory-related processes remain unclear. In the current EEG study, SMs and control participants performed a digit memory task during which their brain activity was recorded. Chinese SMs used a digit-image mnemonic for encoding digits, in which they associated 2 digit groups with images immediately after the presentation of each even-position digit in sequences. Behaviorally, SMs' memory of digit sequences was better than the controls'. During encoding in the study phase, SMs showed an increased right central P2 (150-250 ms post onset) and a larger right posterior high-alpha (10-14 Hz, 500-1720 ms) oscillation on digits at even-positions compared with digits at odd-positions. Both P2 and high-alpha oscillations in the study phase co-varied with performance in the recall phase, but only in SMs, indicating that neural dynamics during encoding could predict successful retrieval of digit memory in SMs. Our findings suggest that representation of a digit sequence in SMs using mnemonics may recruit both the early-stage attention allocation process and the sustained information preservation process. This study provides evidence for the role of dynamic and efficient neural encoding processes in mnemonists.; National Natural Science Foundation of China [31371052, 91632103, 81271511, 31300895, 81421061]; National Major Scientific Instruments Development Project [2013YQ03092305]; Shanghai Municipal Commission of Science and Technology Program [14JC1403700]; Program of Shanghai Subject Chief Scientist [17XD1401700]; Shanghai Municipal Education Commission; Shanghai Jiao Tong University [15JCZZ02]; East China Normal University [YB2016011]; SCI(E); SSCI; ARTICLE; 17-25; 117
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/468954]
专题	心理与认知科学学院
推荐引用方式 GB/T 7714	Pan, Yafeng,Li, Xianchun,Chen, Xi,et al. ERPs and oscillations during encoding predict retrieval of digit memory in superior mnemonists[J]. BRAIN AND COGNITION,2017.
APA	Pan, Yafeng.,Li, Xianchun.,Chen, Xi.,Ku, Yixuan.,Dong, Yujie.,...&Zhou, Xiaolin.(2017).ERPs and oscillations during encoding predict retrieval of digit memory in superior mnemonists.BRAIN AND COGNITION.
MLA	Pan, Yafeng,et al."ERPs and oscillations during encoding predict retrieval of digit memory in superior mnemonists".BRAIN AND COGNITION (2017).