Attentional Bias in Subclinical Obsessive-Compulsive Disorder
Date Issued
2008
Date
2008
Author(s)
Huang, Yu-Pei
Abstract
In cognitive views, attentional bias plays an important role to maintenance of anxiety and may cause the development of clinical anxiety disorder. Anxiety patients used to orient their attention to the threat stimulus and interpreted these catastrophic. Over vigilant to threat stimulus will interfere the process of other stimulus and build a vicious circle. In past, researchers used the emotional Stroop task to explore this topic. But the attention interference in emotional Stroop task could not be interpreted clearly. The present investigation, we used the new version of “ dot-probe task “ to discuss the attentional bias phenomenon in subclinical obsessive-compulsive disorder. This new version of “dot-probe task” would measure three dimensions of attentional bias, including attention vigilance, attention disengagement difficulty and attention avoidance. The present study was a mix design. The between subjects factor was group（subclinical OCD and normal control）, the within subjects factor were stimulus（compulsion checking, compulsion cleaning, positive emotion and neutral）and the location of dot（congruent to emotional stimulus, incongruent to emotional stimulus）。The results show that subclinical OCD’ s overall reaction time was longer than normal control group. According to attentional bias index, subclinical OCD display attention vigilance and attention avoidance to the compulsion checking stimulus, and attention avoidance to the positive emotion stimulus. These results indicated the subclinical OCD may have slower cognitive processing speed than normal control. And they tended to orient their attention to compulsion checking stimulus, but attention avoidance was followed. To the positive emotion stimulus, subclinical OCD display the lack of attention to these. These results may correlate to the development of obsessive-compulsive disorder’s symptoms. Theoretical and clinical implications are discussed.
Subjects
attentional bias
obsessive-compulsive disorder
information processing
dot-probe task
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