摘要
为了研究有过武术运动员经历的警务人员在注意过程中排除干扰的能力,探索这种能力背后的神经机制,我们利用Stroop色-词任务范式,使用先进的事件相关电位技术(ERP),对经训练组(12人)和对照组(12人)的行为数据和脑电数据进行记录与分析。结果显示:1)有武术运动员经历的警员在色-词刺激一致的条件下反应时上慢于对照组(P<0.05),但正确率更高(不显著,P=0.144);2)两组被试的早期ERP成分的波幅和潜伏期均无显著差异(P>0.05);3)有武术运动员经历的警员的N450的波幅小于对照组(P<0.05),潜伏期同对照组无显著差异(P=0.641)。有武术运动员经历的警员在Stroop任务中行为层面上体现了倾向于降低反应速度以保证反应正确率的特点;认知层面上,在冲突控制过程中动用了更少的认知资源,体现了高效的特点。
This study was designed to investigate the characteristics of police with experience of being martial arts athletes in a Stroop task. Behavioral data and event -related potentials （ERPs） were recorded from martial arts trained police （n = 12） and controls （n = 12） while they were completing a Stroop task. Results show that compared with controls, trained police reaction is slow but accurate. In this task, the NI, P2 and N2 components were evoked. The amplitudes and latency of these components have no difference between the controls and trained police. But the amplitude of N450 of trained police was significantly lower than that of controls. We conclude that the trained police are more concerned about the correct rate of reaction and process cognitive conflict with less cognitive resources.
出处
《山东体育科技》
北大核心
2014年第1期76-80,共5页
Shandong Sports Science & Technology
