身体锻炼对中老年人数字运算能力影响的ERPs研究

发布时间：2018-02-21 10:46

本文关键词： 身体锻炼中老年人数字运算能力 ERP　出处：《北京体育大学学报》2017年04期 　论文类型：期刊论文

【摘要】：目的:采用事件相关电位技术考察中老年人身体锻炼对数字运算能力老化延缓作用。方法:30位中老年参与者参与本研究,剔除无效数据,剩余有效参与者26人。使用德国Brain Products公司的ERP记录与分析系统记录参与者完成数字运算任务(简单加减运算测验)时的EEG信号。结果:1)行为学上,锻炼组反应时为(2 153.847±589.919)ms,非锻炼组反应时为(3 098.449±773.798)ms;进行独立样本t检验显示,2组别反应时差异可靠,t=-3.500,P0.01。2)脑电方面,在顶点Pz上,锻炼组P200~300波幅为(3.396±1.913)μV,非锻炼组P200~300波幅为(1.719±0.716)μV;中央点Cz上,锻炼组P200~300波幅为(5.180±2.251)μV,非锻炼组P200~300波幅为(3.517±1.192)μV。对2组别的P200~300波幅进行差异检验,发现2组别的P200~300波幅的差异显著,F(1,24)=7.834,P0.05,partialη2=0.246,2个电极点上P200~300波幅的差异也可靠,F(1,24)=59.381,P0.001,partialη2=0.712。电极点和组别之间交互作用不可靠,F(1,24)=0.976,P0.05。结论:有氧锻炼延缓了数字运算能力的老化速度,体现在大脑机能上是锻炼者较非锻炼者的ERPs(P200~300)波幅更大,能够动员更多的神经元同步兴奋。这提示在数字认知加工的早期阶段,锻炼者与非锻炼者脑内即出现加工的差异,锻炼者的认知加工资源动员程度更高。
[Abstract]:Objective: to investigate the effect of physical exercise on aging of digital arithmetic in middle-aged and old people by using event-related potential technique. Methods: 30 middle-aged and aged participants participated in this study to eliminate invalid data. The remaining active participants were 26. The ERP recording and analysis system of Brain Products, Germany, was used to record the EEG signals of the participants when they completed the numerical task (simple addition and subtraction test). The result was: 1) Behavioral, The response time of the exercise group was 2153.847 卤589.919 msand that of the non-exercise group was 3 098.449 卤773.798ms; the independent sample t test showed that the difference of the reaction time of the two groups was reliable (P 0.01.2). In the peak Pz, the peak Pz of the exercise group was 3.396 卤1.913) 渭 V, the P200300 amplitude of the non-exercise group was 1.719 卤0.716 渭 V, and the central point Cz was 1.719 卤0.716 渭 V, respectively. The amplitude of P200C300 was 5.180 卤2.251 渭 V in the exercise group and 3.517 卤1.1922 渭 V in the non-exercise group. It was found that there were significant differences in the amplitudes of P200C300 between the two groups. The difference in the amplitude of P200C300 between the two groups was significant. Conclusion: exercise can delay the aging rate of digital computing ability by training. The difference of P200C300 amplitude on two electrode points is also reliable. The interaction between the electrode points and the groups is not reliable, and the interaction between the electrode points and the groups is not reliable. Conclusion: exercise can delay the aging rate of the numerical computing ability, and the difference between the two groups is also reliable. The results show that the interaction between the electrode points and the groups is not reliable, and the interaction between the two groups is not reliable. Conclusion: exercise can delay the aging rate of numerical computing ability. The higher amplitude of ERPsP200P200 / 300, which is reflected in the brain function of the exercisers than that of the non-exercisers, can mobilize more neurons to synchronize excitations. This suggests that in the early stages of digital cognitive processing, the differences in processing occur in the brains of the exercisers and the non-exercisers. The degree of mobilization of cognitive processing resources of exercisers was higher.
【作者单位】：天津体育学院;
【基金】：天津市高等学校创新团队培养计划资助项目天津市“131”创新型人才培养工程项目
【分类号】：G806

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