抑郁特质大学生内隐信息加工中的自我积极偏差

摘要

Objective:To explore whether there is self-positivity bias in implicit information processing among college students with depressive traits.Methods:Forty-two college students of the depressive-trait group [Trait Depression Scale (T-DEP) T＞60 and Trait Anxiety Inventory (T-AI) T＜60] and 42 cases of the non-depressive-trait control group [T-DEP and T-AI T＜60] were selected.They performed positive and negative words judgment tasks under self or other primed conditions by adopting the supraliminal attitude-prime paradigm, and the difference in reaction time between the two groups was compared.Result:The interaction effects between primed conditions and emotional words in depressive-trait group were not significant [F (1, 41) =1.56, P=0.218].There was significant interaction effect between primed conditions and emotional words in the control group [F (1, 41) =55.43, P＜0.001], and the reaction time of self-positive words and other-negative words in self-positivity bias was shorter than other-positive words and self-negative words outside the bias [ (602.64±20.03) ms, (654.56±20.41) ms vs. (663.19±20.78) ms, (678.64±20.70) ms, Ps＜0.001].Conclusion:It suggests that there may be no self-positivity bias in the implicit information processing of depressive-trait college students, and non-depressive-trait ones show the implicit self-positivity bias.%目的:探索抑郁特质大学生的内隐信息加工是否存在自我积极偏差.方法:选取抑郁特质组[特质抑郁量表[(T-DEP)T分＞60分,且特质焦虑量表(T-AI)T分＜60分]和非抑郁特质对照组(T-DEP和T-AI的T分均＜60分)大学生各42人,采用阈上态度启动范式,在自我和他人启动下,完成积极和消极词归类任务,比较两组反应时的差异.结果:抑郁特质组的启动类型与词汇类型交互作用无统计学意义[F(1,41)=1.56,P=0.218];对照组的启动类型与词汇类型交互作用有统计学意义[F(1,41)=55.43,P＜0.001],被试对自我积极偏差范畴内的自我积极和他人消极词的反应时短于范畴外的他人积极和自我消极词[(602.64±20.03)ms、(654.56±20.41)ms vs.(663.19±20.78)ms、(678.64±20.70)ms;均P＜0.001].结论:抑郁特质大学生的内隐信息加工不存在自我积极偏差,非抑郁特质大学生表现出内隐自我积极偏差.