The recognition potential: Semantic processing or the detection of differences between stimuli?

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	The recognition potential: Semantic processing or the detection of differences between stimuli?
	Pu, J ; Peng, DL ; Demaree, HA ; Song, Y; Wei, JH ; Xu, L; D. L. Peng
摘要	The recognition potential is traditionally described as an electrical index elicited when subjects view a recognizable stimulus. Recent studies further show that it may be influenced by semantic processing. In this study, we investigated whether this observed influence is really produced by differences in semantic processing or whether it might be caused by the detection of differences between sequentially presented stimuli. In two different experiments, we systematically altered the type of background images presented while keeping the recognizable word constant. Analyses revealed that the same recognizable words elicited an RP with different amplitudes and latencies when viewed under different background conditions. Control stimuli, which were identical to background stimuli, did not elicit the RP. Hence, we postulate that when using the rapid stream stimulation paradigm, RP might also be influenced by the detection of differences between sequentially input stimuli. It is necessary to clarify whether RP changes are caused by the processing of the stimuli or by the detection of difference between successively input stimuli before any conclusion could be made.; The recognition potential is traditionally described as an electrical index elicited when subjects view a recognizable stimulus. Recent studies further show that it may be influenced by semantic processing. In this study, we investigated whether this observed influence is really produced by differences in semantic processing or whether it might be caused by the detection of differences between sequentially presented stimuli. In two different experiments, we systematically altered the type of background images presented while keeping the recognizable word constant. Analyses revealed that the same recognizable words elicited an RP with different amplitudes and latencies when viewed under different background conditions. Control stimuli, which were identical to background stimuli, did not elicit the RP. Hence, we postulate that when using the rapid stream stimulation paradigm, RP might also be influenced by the detection of differences between sequentially input stimuli. It is necessary to clarify whether RP changes are caused by the processing of the stimuli or by the detection of difference between successively input stimuli before any conclusion could be made. (c) 2005 Elsevier B.V All rights reserved.
关键词	recognition potential semantic processing detection of difference Chinese visual stimuli event-related potential
学科领域	认知心理学
	2005-09-01
语种	英语
发表期刊	COGNITIVE BRAIN RESEARCH
ISSN	0926-6410
卷号	25 期号:1 页码:273-282
期刊论文类型	Article
收录类别	SCI ; SSCI
WOS记录号	WOS:000232709600026
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/5787
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	D. L. Peng
作者单位	1.Beijing Normal Univ, Inst Cognit Neurosci & Learning, Beijing 100875, Peoples R China 2.Case Western Reserve Univ, Cleveland, OH 44106 USA 3.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Pu, J,Peng, DL,Demaree, HA,et al. The recognition potential: Semantic processing or the detection of differences between stimuli?[J]. COGNITIVE BRAIN RESEARCH,2005,25(1):273-282.
APA	Pu, J.,Peng, DL.,Demaree, HA.,Song, Y.,Wei, JH.,...&D. L. Peng.(2005).The recognition potential: Semantic processing or the detection of differences between stimuli?.COGNITIVE BRAIN RESEARCH,25(1),273-282.
MLA	Pu, J,et al."The recognition potential: Semantic processing or the detection of differences between stimuli?".COGNITIVE BRAIN RESEARCH 25.1(2005):273-282.

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