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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。
OBJECTIVE: To determine the effect of acute exercise on motor response inhibition using behavioral and electrophysiological methods. Methods: 21 college students were subjected to moderate exercise for 30 minutes, and the control group was read for 30 minutes. Then the stop signal task test was performed to record the P3-N1 event-related potential (ERP) components. Results: Compared with the control group, the stop signal response time (SSRT) of acute exercise group was shorter, but the go response time (Go RT) did not change. In ERP data measurements, acute exercise increases the amplitude of P3 and prolongs its latency, but has no effect on the N1 component. CONCLUSION: Acute exercise has a selective effect on the promotion of cognitive function, which may affect the inhibition of motor response to executive function. In addition, acute exercise mainly affects late stages of the motion response suppression message processing phase, which may increase attentional resource allocation and thus successfully produce the ability to stop responding to achieve motor response inhibition.