摘要
目的探讨抑郁情绪对情绪面孔注意偏向的影响。方法以贝克抑郁量表（BDI）和抑郁自评量表（SDS）为工具筛选出了34名抑郁个体和35名正常被试进行真人情绪面孔的负启动任务的行为学实验。结果发现2组被试对负性面孔的负启动效应差异有显著性（t=3．491，P=0．001），抑郁情绪组[（-66．992±198．051）ms]低于正常对照组[（121，386±154．270）ms]；对负性面孔的正启动效应差异有显著性（t=4．546，P=0．000），抑郁情绪组[（-317．787±131．839）ms]高于正常对照组[（-128．083±116．260）ms]，但对正性面孔正负启动条件下的启动效应均差异无显著性（P〉0．05）[分别为正启动条件下正常对照组（-229．618±135．978）ms，抑郁情绪组（-201．534±95．436）ms；负启动条件下正常对照组（20．658±143．446）ms，抑郁情绪组（32．033±120．625）ms]。结论提示2组被试都对正性面孔的易化效应和抑制效应无显著区别；但两者对负性面孔存在差别，正常对照组能成功抑制负性刺激，而抑郁个体对负性刺激则有过度易化效应和抑制不足的倾向。
Objective To investigate the effects of depressive mood on attentional bias for emotional faces by negative priming task. Methods Beck depression inventory （BDI） and self-rating depression scale （SDS） was used to select participants from 700 graduate students ,and the participants were divided into two groups inclu- ding depressed group and control group. All participants completed a negative priming task which including three kinds of experiment conditions and two kinds of faces type. Results The difference of the negative priming effect for negative faces between two groups was significant （ t = 3. 491, P = 0. 001 ） , the effect of depressed group （ - 66.992 ± 198. 051 ） ms was much lower than control group（ 121. 386 ± 154. 270 ） ms. The difference of the positive priming effect for negative faces between two groups was significant（ t=4.546, P=0.000） , the effect of depressed group（ -317. 787 ± 131. 839） ms was much higher than control group（ - 128. 083 ± 116. 260） ms. The difference of the priming effect for positive faces is （ - 229. 618 ± 135. 978 ） ms in under positive priming condition control group,（ -201.534 ±95.436） ms in depressed group, （20.658 ± 143. 446） ms in under negative priming condition control group, （ 32. 033 ± 120. 625 ） ms in depressed group. There were not significant difference （ P 〉 0.05）. Conclusion The difference of processing and inhibiting positive faces is not significant between two groups ; but they differ in negative faces, the control group can inhibit negative faces while the depressed group has a tendency of over processing and lack of inhibition for negative faces.
出处
《中国行为医学科学》
CSCD
2008年第2期170-173,共4页
Chinese Journal of Behavioral Medical Science
关键词
抑郁
注意偏向
分心抑制
负启动
Depression
Attentional bias
Distracter inhibition
Negative priming
