【摘要】 探讨不同运动水平运动员在罚篮视频预测过程中,预测能力与运动皮层兴奋性之间的关系。研究分为2个实验,预测能力实验采集篮球运动员(实验组)和普通大学生(对照组)对罚篮视频的出手、最高点以及入筐前阶段预测回答率和预测准确率数据;经颅磁刺激实验采集2组被试在不同阶段预测过程中的运动皮层兴奋性数据,刺激强度为0.2mV和1mV。结果发现,运动员在出手和最高点阶段预测回答率和预测准确率较对照组高,入筐阶段2组被试没有显著性差异;0.2mV刺激条件下2组被试运动诱发电位振幅都增高,而1mV条件下只有对照组振幅增高。结果说明预测过程可以使运动皮层兴奋性增加,而运动技能水平增高导致预测过程中运动皮层兴奋性增加幅度的下降。更多还原

【Abstract】 this paper argues that the different sports level athletes in free throws video prediction process,forecasting ability and the motor cortex,the relationship between the excitability.Research is divided into two experiments,predictive power experiment acquisition basketball player(experimental group) and the common college students(control group) to free throws video shot,peak and into the basket before stage forecast answer rate and prediction accuracy data;Transcranial magnetic stimulation experiment acquisition two groups was tried in different stages in the process of forecasting the motor cortex excitatory data,stimulation intensity is 0.2 mV and 1 mV.The results showed that,the athletes in the shot and peak stage forecast answer rate and prediction accuracy than in high,into the basket stage 2 group is try no significant difference;0.2 mV stimulus conditions two groups had no motion evoked potential amplitude are increased,and 1 mV conditions only control group increased amplitude.Results show that the prediction process can make the motor cortex,irritability,and sports skill increased levels of lead to predict the process of motor cortex irritability declines.更多还原