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   2011, Vol. 19 Issue (6) : 794-802     DOI:
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The Brain Mechanisms for Processing Heterogeneous Distracting Information Along Task-Relevant and -Irrelevant Dimensions in Visual Search

WEI Ping;ZHOU Xiao-Lin

(1 Beijing Key Laboratory of Learning and Cognition and Department of Psychology, Capital Normal University, Beijing 100048, China)
(2 Center for Brain and Cognition Sciences and Department of Psychology, Peking University, Beijing 100871, China)

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Abstract  Three functional magnetic resonance imaging (fMRI) experiments were conducted to investigate three issues regarding the impacts of heterogeneity along the task-relevant and the task-irrelevant dimensions upon the efficiency in visual search. The first concerns the neural basis of the interaction between target-presence and the homogeneity along the task-relevant dimension. The second is about the behavioral consequences and the neural correlates of processing heterogeneous distracting information along task-relevant and –irrelevant dimensions. The third is about the common and specific brain mechanisms underlying the interactions between target-presence and the homogeneity along task-relevant and -irrelevant dimensions in feature search vs. conjunction search.
Keywords visual search, feature search, conjunction search, selective attention, task-relevant dimension, task-irrelevant dimension, fMRI     
Corresponding Authors: WEI Ping   
Issue Date: 15 June 2011
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WEI Ping,ZHOU Xiao-Lin. The Brain Mechanisms for Processing Heterogeneous Distracting Information Along Task-Relevant and -Irrelevant Dimensions in Visual Search[J]. , 2011, 19(6): 794-802.
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http://journal.psych.ac.cn/xlkxjz/EN/     OR     http://journal.psych.ac.cn/xlkxjz/EN/Y2011/V19/I6/794
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