摘要
目的:用行为学和电生理学方法确定急性运动对运动反应抑制的作用。方法:让21名大学生进行30 min中等强度运动,对照组进行30 min阅读,然后进行停止信号任务测试,记录P3和N1事件相关电位(event-related potential,ERP)成分。结果:与对照组相比,急性运动组停止信号反应时间(stop signal response time,SSRT)较短,但响应时间(go response time,Go RT)未改变。在ERP数据测量中,急性运动可加大P3的振幅并延长其潜伏期,但对N1成分没有影响。结论:急性运动对认知功能的促进作用具有选择性,会影响执行功能的运动反应抑制。此外,急性运动主要影响运动反应抑制信息处理阶段后期,这有可能增加注意力资源分配,从而能成功产生停止响应以实现运动反应抑制的能力。
Purpose： The purpose of this study was to determine the effects of acute exercise on motor response inhibition using both behavioral and electrophysiological approaches. Methods： The P3 and N1 event-related potential （ERP） components were recorded while performing a stop-signal task in 21 college students following a moderately intense acute exercise bout for 30 min and a sedentary control session that involved reading. Results： Acute exercise induced a shorter stop signal response time （SSRT） as compared to control; however, the go response time （Go RT） remained unchanged. In examining the ERP data, acute exercise increased both P3 amplitude and latency but did not affect the N1 component. Conclusion： Acute exercise has a selective and beneficial effect on cognitive function, specifically affecting the motor response inhibition aspect of executive function. Furthermore, acute exercise predominately impacts later stages of information processing during motor response inhibition, which may lead to an increase in attentional resource allocation and confer the ability to successfully withhold a response to achieve motor response inhibition.
基金
supported in part by grants from the Ministry of Science and Technology to Yu-Kai Chang (NSC 102-2410-H-179-014-MY3)
