Crews D J, Landers D M
Exercise and Sports Research Institute, Arizona State University, Tempe.
Med Sci Sports Exerc. 1993 Jan;25(1):116-26. doi: 10.1249/00005768-199301000-00016.
The purpose of this investigation was to determine the attentional focus patterns associated with golf putting performance. Highly skilled golfers (N = 34) were assessed using electroencephalographic (EEG) measures of the motor and temporal cortices during the 3 s prior to the golf putt. Players completed 40, 12-ft putts and performance was measured in cm error from the hole. Three measures of EEG were analyzed: slow shift, 40 Hz, and relative power spectrum; representing readiness to respond, focused arousal, and general cortical activity, respectively. All three EEG measures suggested a decrease in left hemisphere, motor cortex activity as the player prepared to putt. Relative power measures also showed significant increases in right hemisphere activity in both the motor and temporal cortices. During the last second preceding the putt, increased right hemisphere alpha activity correlated with and predicted less error. Hemispheric differentiation was also reduced as subjects prepared to putt and few, but important, differences existed between the motor and temporal cortices. An important distinction occurred in the alpha band. In the motor cortex left hemisphere alpha increased significantly over time while in the temporal cortex, right hemisphere alpha increased as subjects approached stroke initiation. Differences that existed between the attentional patterns from the present study and past sport studies may relate to the use of one versus two hands to initiate the response.
本研究的目的是确定与高尔夫球推杆表现相关的注意力焦点模式。在高尔夫球推杆前3秒,使用脑电图(EEG)对运动皮层和颞叶皮层进行测量,对34名高技能高尔夫球手进行了评估。球员们完成了40次12英尺的推杆,以球洞为基准,以厘米误差来衡量表现。分析了脑电图的三项指标:慢波转移、40赫兹和相对功率谱;分别代表反应准备、集中唤醒和一般皮层活动。所有三项脑电图指标均表明,当球员准备推杆时,左半球运动皮层活动减少。相对功率测量还显示,运动皮层和颞叶皮层的右半球活动均显著增加。在推杆前的最后一秒,右半球阿尔法活动增加与较少的误差相关且可预测较少的误差。当受试者准备推杆时,半球分化也会降低,运动皮层和颞叶皮层之间存在一些但很重要的差异。在阿尔法波段出现了一个重要区别。在运动皮层中,左半球阿尔法随着时间的推移显著增加,而在颞叶皮层中,随着受试者接近击球开始,右半球阿尔法增加。本研究与以往运动研究的注意力模式之间存在的差异可能与使用单手还是双手启动反应有关。