Cue validity probability influences neural processing of targets

被引：22

作者：

Arjona, Antonio ^{[1
]}

Escudero, Miguel ^{[2
]}

Gomez, Carlos M. ^{[1
]}

机构：

[1] Univ Seville, Dept Expt Psychol, Human Psychobiol Lab, C Camilo Jose Cela S-N, Seville 41018, Spain

[2] Univ Seville, Dept Physiol, Neurosci & Behav Grp, Avda Reina Mercedes 6, E-41012 Seville, Spain

来源：

BIOLOGICAL PSYCHOLOGY | 2016年 / 119卷

关键词：

Posner's paradigm; Attention; Cueing effect; Updating of priors; Validity probability; EVENT-RELATED POTENTIALS; CONTINGENT NEGATIVE-VARIATION; NEUROCOGNITIVE EVALUATION; SELECTIVE-ATTENTION; AUDITORY-CORTEX; P300; COMPONENT; BRAIN; TASK; EXPECTATION; NOVELTY;

D O I：

10.1016/j.biopsycho.2016.07.001

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

The neural bases of the so-called Spatial Cueing Effect in a visuo-auditory version of the Central Cue Posneris Paradigm (CCPP) are analyzed by means of behavioral patterns (Reaction Times and Errors) and Event-Related Potentials (ERPs), namely the Contingent Negative Variation (CNV), NI, P2a, P2p, P3a, P3b and Negative Slow Wave (NSW). The present version consisted of three types of trial blocks with different validity/invalidity proportions: 50% valid - 50% invalid trials, 68% valid - 32% invalid trials and 86% valid - 14% invalid trials. Thus, ERPs can be analyzed as the proportion of valid trials per block increases. Behavioral (Reaction Times and Incorrect responses) and ERP (lateralized component of CNV, P2a, P3b and NSW) results showed a spatial cueing effect as the proportion of valid trials per block increased. Results suggest a brain activity modulation related to sensory-motor attention and working memory updating, in order to adapt to external unpredictable contingencies. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：171 / 183

页数：13

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