基于β频带脑电功率谱分析意境作业训练改善内外向人格大学生睡眠质量的特异性

Specificity of imaginary working training on sleep quality of college students with introverted and extroverted personalities based on change of Beta-band electroencephalogram

目的比较接受和未接受意境作业训练的内外向人格大学生睡眠质量指数、β频带脑电功率前后变化,探讨意境作业对内外向人格睡眠质量改善的特异性。方法将在校大学生按内外向人格维度分层,以1∶1随机分成试验组和对照组。试验组接受意境作业训练,对照组不做任何干预。2组都经3个意境主题干预后,采集2组各阶段睡眠质量指数和β频带脑电绝对功率数据,进行比较分析。结果干预后睡眠质量指数改善,内向试验和对照组差异有统计学意义(P<0.05),外向试验和对照组差异无统计学意义。β频带脑电功率,内向试验和对照组在右额中央(FC4)、左顶区(C3)、左中央顶区(CP3)、左中央区(P3)导联差异有统计学意义(P<0.05),在右中颞区(T4)、左枕区(O1)导联差异有统计学意义(P<0.01);外向试验和对照组在右前额区(F8)、右额颞(FT8)、右顶区(C4)导联差异有统计学意义(P<0.05),在额中央中线(FCZ)导联差异有统计学意义(P<0.01)。结论经意境作业干预后,可改善外向人格睡眠质量,经意境作业训练后,可改善内向人格睡眠质量。

Objective To compare Pittsburgh sleep quality index(PSQI)andβ-band EEG power changes of the college students who received and did not receive imaginary working training,and to explore the specificity of imaginary working on the sleep quality regulation of the introverted and extroverted personalities.Methods College students were randomly divided into experimental group and control group according to the introverted and extroverted dimension by the ratio of 1∶1.The experimental group received the intervention of imaginary working,while the control group did not receive any intervention.Both groups were intervened by three imaginary themes,and the data of Pittsburgh sleep quality index andβ-band EEG absolute power were collected and compared between the two groups.Results After intervention,the Pittsburgh sleep quality index was improved.There was statistic difference between the introverted experimental group and the control group(P<0.05),but there was no statistic difference between the extroverted experimental group and the control group.In terms of theβ-band absolute power change,there was statistic difference in FC4,C3,CP3,P3 leads between the introverted experimental group and the control group(P<0.05),and there was statistic difference in T4 and O1 leads(P<0.01);besides there were statistic differences in F8,FT8 and C4 leads between the extroverted experimental group and the control group(P<0.05),and statistic differences in FCZ lead(P<0.01).Conclusion Imaginary working could possibly improve the sleep quality of people with extroverted personality,and the training of imaginary working could improve the sleep quality of those with introverted personality.