吴璇,陈旭,刘尚礼.跆拳道运动员在动态威胁情景下的视觉搜索优势:来自ERP的证据[J].北京体育大学学报,2017,40(9):60-65.
跆拳道运动员在动态威胁情景下的视觉搜索优势:来自ERP的证据
Visual Search Advantages of Taekwondo Athletes Under Dynamic Threat: Evidence from ERP
投稿时间:2016-11-29  
DOI:10.19582/j.cnki.11-3785/g8.2017.09.010
中文关键词:  关键词:动态威胁  跆拳道运动员  视觉搜索  早期加工  优势效应  事件相关电位
英文关键词:Keywords: dynamic threat  taekwondo athlete  visual search  pre-attentive processing  superiority effect  ERP
基金项目:基金项目:国家自然科学基金面上项目(编号:31571146)。通信作者:刘尚礼。
作者单位
吴璇 西南大学体育学院,重庆 400715 
陈旭 西南大学心理学部,重庆 400715 
刘尚礼 西南大学心理学部,重庆 400715 
摘要点击次数: 2465
全文下载次数: 374
中文摘要:
      摘要:目的:当前研究探讨了跆拳道运动员在动态威胁情景下视觉搜索的早期加工特征。方法:采用“专家-新手”范式,通过事件相关电位技术,对跆拳道运动员和普通大学生(各15人)视觉搜索早期自动化加工阶段的P1、N1成分进行了考察。结果:1)专家运动员对动态威胁刺激的视觉搜索速度更快,效率更高;视觉加工早期阶段,专家组诱发的P1潜伏期和振幅、N1振幅较大。2)与静态威胁刺激相比,动态威胁刺激在大脑皮层诱发的P1、N1潜伏期更长。结论:跆拳道运动员在视觉搜索早期自动化加工阶段投入了更多的注意资源,表现出对威胁性刺激的注意定向加速;动态威胁刺激通过增加的信息量对跆拳道运动员视觉加工的早期阶段产生影响。
英文摘要:
      Abstract: Objective: This study investigated pre-attentive processing characteristics of Taekwondo athletes’ visual search under dynamic threat. Methods: By using the expert-novice paradigm, event-related potentials (ERPs) were measured to investigate the P1 and N1 components of early visual processing stages of Taekwondo athletes and regular undergraduate students who were not involved in Taekwondo (n=15 for each group). Results: 1)The behavioral results indicated that expert athletes showed a more rapid and efficient visual search for dynamic threat stimuli. In addition, ERPs showed that the expert group evoked greater P1 latency and amplitude and N1 amplitude during the early visual processing stages. 2)compared with static threat stimuli, dynamic threat stimuli evoked longer P1 and N1 latencies in the cerebral cortex. Conclusions: These results indicate that Taekwondo athletes devote more attentional resources during the early visual-processing stages, manifesting faster attentional orienting to dynamic-threat stimuli. These stimuli influence the early visual-processing stages of Taekwondo athletes by increasing interfering information.
查看全文  查看/发表评论  下载PDF阅读器