Attentional Bias for Negative Emotional Facial Expressions in Major Depressive Disorder
10.3969/j.issn.1000-6729.2009.11.009
- VernacularTitle:重度抑郁症对负性情绪面孔的注意偏向
- Author:
Hongbo LE
;
Shuhua MA
;
Xiaoling CHENG
;
Zhaoxin WANG
;
Zhiguo HU
;
Huihong ZHANG
;
Chunliu QIU
;
Hui LI
;
Gongwei ZHANG
;
Lingmin LIAO
- Publication Type:Journal Article
- Keywords:
attentional bias;
exogenous cueing paradigm;
major depressive disorder;
attentional engagement;
case-control study
- From:
Chinese Mental Health Journal
2009;23(11):795-799
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the attentional bias for negative emotional facial expressions in major depressive disorder(MDD).Methods:Twenty MDD participants were selected from a larger pool of patients (n=35),diagnosed as depression with the Chinese Classification and Diagnostic Criteria of Mental Disorders Version 3 (CCMD-3),according to the Hamilton Depression Scale (HAMD) and Beck Depression Inventory (BDI).And 20 non-depression control participants(NC)matched with MDD group on age,gender and education level.All participants completed an exogenous cueing task which consisted of two kinds of cue types(valid and invalid trial)and two kinds of face types(neutral faces and negative faces).Results:Patients with MDD showed more larger cue validity effect for negative faces compared with neutral faces(21.73 ms vs.3.91 ms,P<0.01).They showed a stronger attentional engagement for negative faces in comparison with non-depressed participants(17.25 ms vs.1.64 ms,P<0.001).The NC group directed attention away from negative faces,more rapidly disengaging their attention compared with MDD,but the differences showed no significant(-1.50 ms vs.0.57 ms,P>0.05).Conclusion:These results support the assumption that MDD is associated with attentional bias for negative information,and deficits protective bias for it.
