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Advances in Psychological Science    2015, Vol. 23 Issue (12) : 2118-2128     DOI: 10.3724/SP.J.1042.2015.02118
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Mood-Congruent Cognitive Bias in Depressed Individuals
HE Zhenhong; ZHANG Dandan; LUO Yuejia
(Institute of Affective and Social Neuroscience, Shenzhen University, Shenzhen 518060, China)
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Abstract  

Mood-congruent cognitive bias (“cognitive bias” for short) is defined as a cognitive processing bias towards negative stimuli in depressed individuals. The cognitive bias mainly includes biased processing in perception, attention, memory and interpretation. We summarized the associated behavioral, electrophysiological and neuroimaging studies in this field and proposed that the severe bias in depressed individuals is characterized by preferring negative stimuli and insufficient processing for positive stimuli. Accordingly, the brain mechanism shows that the limbic system (amygdala) is hyperactive in response to negative stimuli while the striatum is hypoactive in response to positive stimuli; the activation in frontal area is also abnormal. However, there are three problems unsolved in this area: (1) Data indicate that different cognitive biases are correlated with each other (Everaert, 2012), which is currently not clearly understood; (2) The causality between cognitive bias and depression is not clear; (3) Inconsistent results are often achieved in different studies, which is usually interpreted as demographic and methodological issues. We argue the discrepancy of effect sizes of experimental paradigm and the influence of self-relevance materials may also contribute to the inconsistence. Future cognitive bias studies in depression might help for solving these problems.

Keywords mood-congruent bias      depression      perception      attention      memory      interpretation     
Corresponding Authors: ZHANG Dandan, E-mail: zhangdd05@gmail.com   
Issue Date: 15 December 2015
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HE Zhenhong
ZHANG Dandan
LUO Yuejia
Cite this article:   
HE Zhenhong,ZHANG Dandan,LUO Yuejia. Mood-Congruent Cognitive Bias in Depressed Individuals[J]. Advances in Psychological Science, 2015, 23(12): 2118-2128.
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http://journal.psych.ac.cn/xlkxjz/EN/10.3724/SP.J.1042.2015.02118     OR     http://journal.psych.ac.cn/xlkxjz/EN/Y2015/V23/I12/2118
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