The influence of expertise and of physical complexity on visual short-term memory consolidation

	The influence of expertise and of physical complexity on visual short-term memory consolidation
	Sun, Huiming 1,2; Zimmer, Hubert D.3; Fu, Xiaolan1 ; Fu XL(傅小兰)
刊名	QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY
	2011
卷号	64 期号:4 页码:707-729
关键词	Consolidation Visual short-term memory Expertise Physical complexity Perceived complexity
ISSN号	1747-0218
文献子类	Article
英文摘要	We investigated whether the expertise of a perceiver and the physical complexity of a stimulus influence consolidation of visual short-term memory (VSTM) in a S1-S2 (Stimulus 1-Stimulus 2) change detection task. Consolidation is assumed to make transient perceptual representations in VSTM more durable, and it is investigated by postexposure of a mask shortly after offset of the perceived stimulus (S1; 17 to 483ms). We presented colours, Chinese characters, pseudocharacters, and novel symbols to novices (Germans) or experts of Chinese language (Chinese readers). Physical complexity was manipulated by the number of strokes. Unfamiliar material was remembered worse than familiar material (Experiments 1, 2, and 3). For novices the absolute VSTM performance was better for physically simple than for complex material, whereas for experts the complexity did not matterChinese readers memorized Chinese characters (Experiment 3). Articulatory suppression did not change these effects (Experiment 2). We always observed a strong effect of SOA, but this effect was influenced neither by physical complexity nor by expertise; only the length of the interstimulus interval between S1 and the mask was relevant. This was observed even with short stimulus onset asynchrony (SOA) of 100ms (Experiment 2) and in comparing colours and characters (Experiment 5). However, masks impaired memory if they were presented at the locations of the to-be-memorized items, but not beside themthat is, interference was location-based (Experiment 6). We explain the effect of SOA by the assumption that it takes time to stop encoding of information presented at item locations with the offset of S1. The increasing resistance against interference by irrelevant material appears as consolidation of S1.
学科主题	认知心理学
资助项目	二室傅小兰课题组
语种	英语
WOS记录号	WOS:000288952600007
公开日期	2011-11-11
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/6930]
专题	心理研究所_认知与发展心理学研究室
通讯作者	Fu XL(傅小兰)
作者单位	1.Chinese Acad Sci, Inst Psychol, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China 2.Univ Saarland, Int Res Training Grp Adapt Minds, D-6600 Saarbrucken, Germany 3.Univ Saarland, Dept Psychol, Brain & Cognit Unit, D-6600 Saarbrucken, Germany
推荐引用方式 GB/T 7714	Sun, Huiming,Zimmer, Hubert D.,Fu, Xiaolan,et al. The influence of expertise and of physical complexity on visual short-term memory consolidation[J]. QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY,2011,64(4):707-729.
APA	Sun, Huiming,Zimmer, Hubert D.,Fu, Xiaolan,&傅小兰.(2011).The influence of expertise and of physical complexity on visual short-term memory consolidation.QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY,64(4),707-729.
MLA	Sun, Huiming,et al."The influence of expertise and of physical complexity on visual short-term memory consolidation".QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY 64.4(2011):707-729.