摘要
目的:探讨情绪词语对摔跤运动员心理表象任务影响的行为特征及事件相关电位特点。方法:研究对象为24名二级以上摔跤运动员,从汉语情感词系统中选取积极词语和消极词语各40个作为情绪启动材料,心理旋转任务为旋转的字母R。脑电记录采用事件相关电位技术(ERPs)。结果:(1)随着字母R旋转角度的增加,反应时逐渐增大(P<0.01),正确率逐渐减小(P<0.01);(2)Cz电极的P300峰潜伏期显著小于其他三个电极位置(P<0.01),Pz与Cz的P300峰波幅分别显著大于P4与P3处(P<0.05);(3)积极词语诱导条件的P300峰潜伏期显著短于消极词语诱导条件(P<0.05)。结论:(1)摔跤运动员在两种情绪条件下:随着旋转角度的增加,反应时逐渐增加而正确率逐渐下降;在心理表象过程中,脑部顶叶靠近枕区的激活速度与加工速度慢于中央区,且脑中央区位置付出了较多的认知负荷。(2)积极情绪词语有助于提高摔跤运动员在心理表象过程中的空间认知加工与转换速度,提示在平时训练过程中教练员应多使用积极性词语进行暗示,以提高运动员的运动竞技表现。
Objective To explore the effects of emotional terms on the event-related potentials（ERPs）of imagery tasks and behavioral characteristics of wrestlers. Methods 24 wrestlers with class II or higher ranking participated in this study. 40 positive terms and 40 negative terms from Chinese Affective Words System were selected as the emotional priming materials. ERPs were obtained during mental rotation task. Results（1）With the increase of the rotational angle, the reaction time increased gradually（P〈0.01） and the accuracy decreased gradually（P〈0.01）.（2）The peak latency of P300 on Cz was significantly shorter than on the other three electrodes（P〈0.01）. The peak amplitudes of P300 on Cz and Pz were significantly higher than on the P3 and P4（P〈0.05）.（3）The peak latency of P300 induced by positive terms was significantly shorter than that induced by negative terms（P〈0.05）. Conclusions（1）The reaction time increased and the accuracy decreased with the increase of the rotational angle under the two emotional conditions in wrestlers. The activation and processing speed of the parietal occipital region was slower than the central region.（2）The positive emotion terms could improve the cognitive processing and conversion rate during mental imagery of wrestlers.
出处
《中国运动医学杂志》
CAS
北大核心
2015年第4期388-393,403,共7页
Chinese Journal of Sports Medicine
基金
湖北省自然科学基金项目(2012FFB061)
关键词
摔跤运动员
阈下情绪启动
心理旋转
P300
wrestlers emotional priming psychological rotation event-related potential
