短时太极(八法五步)对大学生负性情绪刺激下抑制功能影响的ERP研究  

Acute Tai Chi (Bafa Wubu) on inhibitory function under negative emotional stimulation in college students:an ERP study

作　　者：李秀娟 崔蕾[1] 王源[1] 朱丽娜 李昀霏[1] 李静 申其淇 张静怡 殷恒婵[1] LI Xiujuan;GUI Lei;WANG Yuan;ZHU Lina;LI Yunfei;LI Jing;SHEN Qiqi;ZHANG Jingyi;YIN Hengchan(College of P.E.and Sports,Beijing Normal University,100875,Beijing,China)

机构地区：[1]北京师范大学体育与运动学院,北京100875

出　　处：《北京师范大学学报（自然科学版）》2020年第1期141-147,共7页Journal of Beijing Normal University(Natural Science)

基　　金：国家重点研发计划资助项目(2018YFC2000600);国家社会科学基金重点资助项目(19ATY010)。

摘　　要：为探讨短时太极(八法五步)干预对大学生负性情绪下抑制功能的影响及其神经机制.本研究以24名大学生为研究对象,随机分为负性情绪刺激组(负性组)、中性情绪刺激组(中性组),各组12人(男6女6),测量情绪刺激前后的抑制功能并同步采集ERP数据.对负性组进行一次60 min中等强度的太极(八法五步)运动干预,干预后再次测量其情绪刺激前后的抑制功能并同步采集ERP数据.结果表明:1)运动干预前不同情绪刺激对抑制功能影响的差异为:①在反应时上,情绪刺激前,负性组与中性组在各任务(一致、不一致、抑制冲突)上的反应时均无显著性差异;情绪刺激后,负性组比中性组在各任务上的反应时均显著延长;负性组情绪刺激后较刺激前在各任务上的反应时均非常显著延长;中性组情绪刺激后较刺激前在各任务上的反应时均无显著差异.表明负性情绪刺激降低了抑制功能的运行效率.②在N2振幅上,情绪刺激后,负性组比中性组在一致、不一致任务上前额叶N2振幅均显著减小,表明负性情绪刺激降低了抑制功能任务出现后200 ms左右前额叶的电压值.2)短时太极(八法五步)干预对负性情绪刺激下抑制功能的影响为:①负性组干预后较干预前在各任务(一致、不一致、抑制冲突)上的反应时均显著缩短,表明干预后抑制功能的运行效率显著提升;②负性组干预后较干预前在一致、不一致任务上前额叶N2振幅较均显著增大,表明运动干预后抑制功能任务出现后200 ms左右前额叶的电压值显著增大.综上可知:负性情绪刺激对抑制功能具有干扰作用,其神经机制是前额叶区N2振幅降低;短时太极(八法五步)能够降低负性情绪刺激对抑制功能的干扰,其神经机制是前额叶区N2振幅增大;太极(八法五步)是降低负性情绪刺激对抑制功能干扰的有效手段.Effect of short-term Tai Chi i.e., Bafa Wubu on inhibitory function under negative emotional stimulation and underlying neural mechanism were investigated Twenty-four healthy college students were divided randomly into negative emotion group(NEG) and neutral emotion group(NEU) with each group consisting of 6 male and 6 female students. Inhibitory function ERP was done in both groups, both before and after emotional stimulation. Students in NEG group did Bafa Wubu Tai Chi(TCC) for 60 min. Inhibitory functions and ERP before and after emotional stimulation were done. After negative emotional stimulation, reaction time of congruent, incongruent and inhibition of conflict were found to be significantly prolonged in NEG. No significant difference was found among congruent, incongruent and inhibition of conflict reaction time before and after neutral emotional stimulation in NEU. The N2 amplitude in NEG was found to be significantly lower than NEU. After negative emotional stimulation, participants showed significantly improved performance in Flanker task. N2 amplitude induced by congruent and incongruent tasks after intervention was found to be significantly higher than before negative emotional stimulation. It is concluded that negative emotional stimulation interferes with inhibitory function, likely due to decreased N2 amplitude in prefrontal cortex Acute Bafa Wubu of Taichi is found to reduce interference of negative emotional stimulation on inhibitory function, likely due to increased N2 amplitude in prefrontal cortex. Bafa Wubu of Taichi is therefore effective to reduce interference of negative emotional stimulation on inhibitory function.

关 键 词：太极(八法五步) 抑制功能 负性情绪刺激 中性情绪刺激 ERP 

分 类 号：G804.82[文化科学—运动人体科学]