Dissociative tendencies and right-hemisphere processing load: Effects on vigilance performance

被引:9
作者
Helton, William S. [1 ]
Dorahy, Martin J. [1 ]
Russell, Paul N. [1 ]
机构
[1] Univ Canterbury, Dept Psychol, Christchurch 1, New Zealand
关键词
Attention; Dissociative tendencies; Emotional processing; Sustained attention; Vigilance; BLOOD-FLOW VELOCITY; SIGNAL SALIENCE; ATTENTION;
D O I
10.1016/j.concog.2010.09.019
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
The present study was designed to explore the relationship between self-reported dissociative experiences and performance in tasks eliciting right-hemisphere processing load. Thirty-four participants (10 men and 24 women) performed a vigilance task in two conditions: with task-irrelevant negative-arousing pictures and task-irrelevant neutral pictures. Dissociation was assessed with the Dissociative Experience Scale. Consistent with theories positing right-hemisphere deregulation in high non-clinical dissociators, dissociative experiences correlated with greater vigilance decrement only in the negative picture condition. As both the vigilance task and negative picture processing are right lateralized, this result provides support for a right-hemisphere dysfunction in high dissociators, at least in negative conditions. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:696 / 702
页数:7
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