应激条件下不同人格特征射击射箭运动员P300的变化  

Change of P300 in Shooters and Archers with Different Personality during Competition Stress

作　　者：高丽[1] 唐云翔[1] 严进[1] 刘爱丽[1] 刘涛生[1] 全志伟[2] 

机构地区：[1]第二军医大学卫勤系心理学教研室 [2]上海市体育科学研究所

出　　处：《中国健康心理学杂志》2010年第9期1052-1055,共4页China Journal of Health Psychology

基　　金：上海市体育局科研基金(07JT017);国家科技支撑计划项目(2009BAI77B04)的资助

摘　　要：目的探讨应激条件下不同人格特征射击运动员P 300的变化。方法应用特质焦虑问卷(TA I)、艾森克人格问卷(EPQ)在20名射击运动员中,筛选出不同特质焦虑、人格特征的被试,以2009年5月全国射击冠军赛作为应激源,应用N eu-roScan 32 channel ERP System记录其应激前和应激时P 300的变化。结果①高特质焦虑、中等特质焦虑、高神经质运动员应激时P 300潜伏期长于应激前(F=18.81,P=0.000;F=4.55,P=0.048;F=8.260,P=0.011),高特质焦虑、高神经质和中等神经质运动员应激时P 300波幅大于应激前(F=14.81,P=0.001;F=7.300,P=0.025;F=8.160,P=0.014),低特质焦虑运动员应激时P 300波幅小于应激前(F=5.76,P=0.028);②各组应激前潜伏期、波幅无显著性差异,应激时不同特质焦虑运动员的P 300潜伏期、波幅存在显著性差异(F=5.150,P=0.018;F=8.030,P=0.007),高特质焦虑运动员P 300潜伏期长于、P 300波幅大于中等特质焦虑和低特质焦虑运动员(P<0.05);不同神经质运动员的P 300潜伏期、波幅存在显著性差异(F=6.070,P=0.010;F=5.860,P=0.012),高神经质运动员P 300潜伏期长于中等神经质和低神经质运动员(P<0.05),P 300波幅大于低神经质运动员(P<0.05)。结论不同特质焦虑、神经质运动员应激前后P 300的差异提示,个体情绪体验的变化可造成P 300的改变。Objective To investigate the influence of competition stress on P300 in shooters with different personality.Methods By the Trait Anxiety Inventory,different trait anxiety and personality groups were chosen from 20 shooters.Using competition stress as stressor,meanwhile record P300 through NeuroScan 32 channel ERP System during pre and at stress,their changes of P300 were observed during different stress period.Results ①The latency of P300 were greater in stress porlod than bofore stress for high and moderate trait anxiety and high neurotic group（F=18.81,P=0.000;F=4.55,P=0.048;F=8.260,P=0.011）,while the amplitude of P300 were larger in high trait anxiety and high moderate neurotic group during stress period（F=14.81,P=0.001;F=7.300,P=0.025;F=8.160,P=0.014）,smaller in low trait anxiety during stress period（F=5.76,P=0.028）.②There were significant differences on P300 latency and amplitude among different trait anxiety（F=5.150,P=0.018;F=8.030,P=0.007） and neurotic groups（F=6.070,P=0.010;F=5.860,P=0.012） during stress.The latency of P300 were greater in high trait anxiety group compared with moderate and low trait anxiety group,in high neurotic group compared with moderate and low neurotic group at stress（P0.05）.The amplitude of P300 were larger in high trait anxiety group compared with moderate and low trait anxiety group,in high neurotic group compared with low neurotic group at stress（P0.05）.Conclusion The difference of P300 in different trait anxiety and neurotic athletes during stress period suggests that emotional changes can impact P300.

关 键 词：特质焦虑 人格 应激 事件相关电位 射击运动员 

分 类 号：R338.1[医药卫生—人体生理学]