听觉单通道诱发积极情绪对大学生认知控制的影响

The influence of positive emotion induced by auditory single channel on cognitive control in college students

目的探讨听觉单通道诱发积极情绪对认知控制策略的影响。方法采用诱发积极情绪的音乐为材料,比较积极情绪组和无情绪诱发组在AX型持续操作任务(AX-continuous performance test,AX-CPT)任务和AX-CPT修改任务中行为表现,采用SPSS 18.0对任务反应时和正确率进行重复测量方差分析。结果在AX-CPT任务中,对反应时进行分析,结果显示时间间隔主效应显著[F_((1,58))=98.68,P<0.001,η^(2)=0.63],时间间隔为3000 ms时的反应时长于时间间隔为1000 ms时的反应时;组间主效应边缘显著[F_((1,58))=3.79,P=0.05,η^(2)=0.06],积极情绪组反应时长于无情绪诱发组;时间间隔与音乐效价交互作用显著[F_((1,58))=9.69,P<0.01,η^(2)=0.01]。进一步多重方差分析,在BX试次上,时间间隔与音乐效价交互作用显著[F_((1,58))=12.11,P<0.01,η^(2)=0.17],在时间间隔为3000 ms时,积极情绪组反应时显著长于无情绪诱发组[F_((1,58))=5.09,P<0.05];在时间间隔为1000 ms时,诱发积极情绪组与无情绪诱发组反应时无显著差异[F_((1,58))=0.01,P=0.97]。在AX-CPT修改任务中AY试次上积极情绪组反应时小于无情绪诱发组[F_((1,53))=4.12,P<0.05]。结论听觉单通道诱发积极情绪减少了线索刺激的干扰,削弱了主动性控制;听觉单通道诱发积极情绪对主动性控制的影响是易变的,受到任务引发的心理疲劳程度、任务经验等因素影响。

Objective To investigate the influence of positive emotion induced by audio sensory on cognitive control.Methods In the study,participants were divided into two groups,one completed the task with music which could induce positive emotion named as positive emotion group,and the other done task without music named as non-music group.Then the reaction time(RTs)and accuracy in AX-CPT(AX-continuous performance test)task and AX-CPT modification task in the two groups were analyzed through repeated measurement variance using SPSS 18.0.Results In AX-CPT task,RTs results showed that the main effect of time interval was significant(F_((1,58))=98.68,P<0.001,η^(2)=0.63).The RTs of participants with 3000 ms was longer than that with 1000 ms,and the main effect between groups was edge significant(F_((1,58))=3.79,P=0.05,η^(2)=0.06).The RTs of positive music group was longer than non-music group;and the interaction between time interval and music potency was significant(F_((1,58))=9.69,P<0.01,η^(2)=0.01).In BX,the interaction between time interval and music potency was also significant(F_((1,58))=12.11,P<0.01,η^(2)=0.17).When the time interval was 3000 ms,RTs in the positive music group increased than that in non-music group in BX under AX-CPT task(F_((1,58))=5.09,P<0.05).When the time interval was 1000 ms,there was no significant difference in RTs between the two groups(F_((1,58))=0.01,P=0.97).However,RTs in the positive music group decreased in AY in AX-CPT modification task than that in non-music group(F_((1,53))=4.12,P<0.05).Conclusion The interference of cue stimulation decreased in positive emotion induced by music and decreased proactive control,but not stable.Always,it is influenced by metal fatigue and task experience.