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1、情绪效价强度对抑郁症状个体认知控制的影响李嘉雯,冯正直,廖成菊,蒋娟,王晓霞（400038重庆,第三军医大学护理学院心理学教研室）[摘要]目的：探讨情绪刺激效价强度对抑郁症状个体认知控制的影响特点。方法：以贝克抑郁量表和Zung编制的抑郁自评量表为工具，选取重庆某大学本科生，发放问卷600份，回收有效问卷585份。在重庆某所大学对520人进行前期问卷筛查利用贝克抑郁量表（Beckdepressioninvertory，BDI）和自评抑郁量表（self-ratingdepressionscales，SDS）进行筛选，得到抑郁症状被试23名和健康被试23名筛选出健
2、康被试与抑郁症状被试各23名，利用经典的双选择情绪Oddball实验范式，比较不同情绪刺激效价强度对两组被试的认知控制的正确率和反应时的差异。结果：①从正确率分析来看，健康组(F=11.221，P<0.01)与抑郁症状组(F=12.310，P<0.01)分别在情绪效价强度变化上有显著差异，两组在高负性、中性和低正性中目标刺激均高于高正性和低负性，高正性和低负性没有差异。②从反应时分析来看，健康组(F=2.903，P<0.05)与抑郁症状组(F=3.256，P<0.05)分别在情绪效价强度（愉悦度）变化上有显著差异；但是对于健康组，在高负性、中性、低正性和高正性
3、中目标刺激反应时长于低负性；对于抑郁症状组，在高负性和低正性中目标刺激反应时高于中性和高正性。结论:情绪效价强度对抑郁症状个体的认知控制影响存在差异，且影响程度随着情绪强度变化而变化。随着负性情绪强度的增加，抑郁症状个体认知控制反应延迟；随着正性情绪强度的增加，抑郁症状个体认知控制反应提前。[关键词]情绪；效价；认知控制；抑郁症状；影响TheeffectofValenceStrengthforDifferentEmotionalStimulionCognitiveControlinDepressiveSymptomIndividualsLiJianwen,Fe
4、ngZhengzhi,LiaoChengju,JiangJuan,WangXiaoxia(DepartmentofPsychology,CollegeofNurseing,ThirdMilitaryUniversity,ChongQing,400038)[Abstract]Object:Toinvestigatetheeffectofvalencestrengthfordifferentemotionalstimulioncognitivecontrolindepressivesymptomindividuals.Methods:Atotalof23healt
5、hindividualsand23matcheddepressivesymptomindividualsbasedonBeckdepressioninventory(BDI)andself-ratingdepressionscale(SDS)wereenrolledinthisstudy.Theemotionaloddballtaskwerecarriedoutonthemtocomparetheiraccuraciesandreactiontimesoftargetsimuluseffectedbyvalencestrengthofdifferentemot
6、ionalstimuli.Result:(1)Theaccuraciesdatashowedthattherewassignificantdifferenceindifferentvalencestrengthforhealthgroup(F=11.221,P<0.01),andalsofordepressivesymptomgroup(F=12.310,P<0.01);thentheaccuraciesoftargetsimulusinhighlynegative,neutralandmoderatelypositiveweresignificanthigh
7、erthanhighlypositiveandmoderatelynegativeineithergroup.(2)Thereactiontimesdatashowedthattherewassignificantdifferenceindifferentvalencestrengthforhealthgroup(F=2.903,P<0.05),thereactiontimesoftargetsimulusinhighlynegative,neutral,moderatelypositiveandhighlypositiveweresignificantlon
8、gerthanmoderatelyne
