重剑运动员判断时机的视觉搜索特点及其ERP研究  

Epee Athletes ' Visual Search Features and ERP Study on Timing Judgment

作　　者：刘婷怡[1] 周成林[2] 王碧野[1] 

机构地区：[1]上海体育学院运动科学学院,上海200438 [2]上海体育学院科研处,上海200438

出　　处：《上海体育学院学报》2013年第6期45-49,共5页Journal of Shanghai University of Sport

基　　金：国家自然科学基金资助项目(31171004);上海市科委"创新行动计划"部分地方院校能力建设计划项目(11510503100)

摘　　要：结合眼动记录系统和事件相关电位(ERP)记录系统,以重剑运动员为研究对象,要求其判断比赛视频片段中的出剑时机,考察实验任务中被试的视觉搜索特点及其神经机制。结果显示:1)平均注视时间存在性别主效应;2)男女运动员关注区域存在差异;3)出剑时机点的判断不具有显著性差异;4)运动员大脑信息处理存在双侧匹配模式;5)男女运动员P3波潜伏期在PO3、PO7处有显著性差异,P3波的振幅无显著性差异。提示:专家运动员出剑时机判断的准确性高;不同性别重剑运动员视觉搜索特点存在差异;重剑运动员在任务执行上具有专家优势,但男女运动员对动态情境的信息处理不存在显著性差异。The study, combined eye movement recording with event ERP recording system, observed epee athletes, who were required to judge the attacking time in a competition video clip, examining their visual search features and neural mechanism. The results find that： 1 ） Average fixation time differs in different genders; 2） Focus differs in genders; 3 ） There is no significant difference in the judgment of attacking timing; 4 ） Bilateral matching mode of information processing exists in athletes＇ brains ; 5 ） There is a significant difference for P3 wave latencies at PO3 and PO7, though no significant difference is found in P3 wave amplitude. The study shows that epee expert has a higher accuracy of attacking timing judgment. Moreover, visual search features differ in different genders. Epee athlete has execution advantages, but no significant difference of information processing under dynamic conditions has been found in different genders.

关 键 词：重剑运动员 判断时机 视觉搜索 事件相关电位 出剑时机 

分 类 号：G804.8[文化科学—运动人体科学]