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Effect of exercise on higher brain function of recognition and evaluation processes: a single-trial analysis of auditory and visual P3 components

运动对识别和评估过程的高级大脑功能的影响：听觉和视觉 P3 成分的单次试验分析

基本信息

批准号：
11680068
负责人：
YAGI Yasuo
金额：
$ 2.05万
依托单位：
Seinan Jo Gakuin University (2002)Seinan Jo Gakuin University Junior College (1999-2001)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2002
项目状态：
已结题

项目摘要

Objective : Effects of exercise on higher brain function using a single-trial analysis of ERP components (N1, N2 and P3) and reaction time (RT) were investigated.Methods : Eighteen healthy subjects (both sexes, 18.8±0.8 years) participated and performed auditory and visual oddball tasks during control and exercise periods. Exercise was done on a bicycle ergometer (60 rev/min, 60W) for 10 min. EEG, EOG, ECG and esophageal temperature were measured together with RT by button press during oddball tasks.Results : Exercise increased heart rate from 61.1±4.5 bpm during control to 107.5±11.6 bpm in males and 70.4±10.2 bpm during control to 113.7±12.8 bpm in females. Esophageal temperature increased from 36.7±0.1℃ during control to 37.2±0.3℃ (n=6) during exercise in both males and female. RT and ERP components were grouped into a successive reaction (SR) in response to target stimulus that was not preceded by non-target stimulus (NT), and interrupted reactions (Irs) in response to target stimulus that was preceded by 1 to 5 NTs. Exercise significantly shortened all ERP components and RTs in both modalities (p<0.05) compared to the control period, except for N2 and P3 latencies and RTs of Irs with 4 and 5NT in both modalities (p<0.05). There was no difference in N1 latency shortening between SR and Irs with any number of non-targets during exercise compared to control.Conclusions : These results suggest that exercise shortens N1 latency due to the body temperature increase, and also enhances arousal of the central nervous system, so that N2 and P3 latencies and RTs in SR and IR with 1, 2 and 3NT(s) become further shortened.

目的：方法：18名健康受试者（18.8±0.8岁，男、女）在控制期和运动期分别完成听觉和视觉的古怪任务，采用ERP（N1、N2和P3）和反应时（RT）的单次试验分析，研究运动对高级脑功能的影响。结果：运动后心率由对照组的61.1±4.5次/分增加到107.5±11.6次/分，由对照组的70.4±10.2次/分增加到113.7±12.8次/分;雄性和雌性的食管温度从对照期间的36.7±0.1℃升高至运动期间的37.2±0.3℃（n=6）。RT和ERP成分被分为连续反应（SR）和中断反应（Irs），其中连续反应（SR）是对目标刺激的反应，而非目标刺激（NT）是在目标刺激之前发生的，而中断反应（Irs）则是对目标刺激之前发生的1 ~ 5个NT。与对照期相比，运动显著缩短了两种模式中的所有ERP成分和RT（p<0.05），但两种模式中的N2和P3潜伏期以及4和5 NT的Irs的RT除外（p<0.05）。有没有差异，在N1潜伏期缩短SR和IRs与任何数量的非目标之间的control.Conclusions：这些结果表明，运动缩短N1潜伏期由于体温升高，也增强了唤醒的中枢神经系统，使N2和P3潜伏期和RT在SR和IR与1，2和3 NT（s）变得进一步缩短。