Etnier J L, Whitwer S S, Landers D M, Petruzzello S J, Salazar W
Department of Exercise Science and Physical Education, Arizona State University, USA.
Res Q Exerc Sport. 1996 Sep;67(3):272-9. doi: 10.1080/02701367.1996.10607954.
This study was designed to examine changes in EEG activity associated with the learning of a novel task. Right-handed adults (N = 61) were randomly assigned to experimental and control groups. Subjects'EEG was recorded at 10 sites. Subjects' performance was assessed using 8-s trials on a mirror star trace. On the acquisition day, the experimental subjects performed 175 trials while the control subjects performed 10 trials, sat quietly for the amount of time needed to perform 155 trials, and then performed 10 more trials. On the retention day, all subjects performed 20 trials. There was a significant Group x Day x Trial interaction that showed that performance improved across trial blocks and across days; however, after the first 10 acquisition trials, the experimental subjects were always significantly better than the control subjects. Analysis of the EEG data showed a significant four-way interaction that showed that following the the first 10 acquisition trials, the experimental subjects had more alpha activity than the control subjects. It is concluded that there are consistent EEG changes in the alpha band that are associated with learning a motor task.
本研究旨在检验与学习一项新任务相关的脑电图（EEG）活动变化。右利手成年人（N = 61）被随机分为实验组和对照组。在10个部位记录受试者的脑电图。使用镜像星形追踪的8秒试验评估受试者的表现。在习得日，实验组受试者进行175次试验，而对照组受试者进行10次试验，安静地坐一段时间以达到相当于进行155次试验所需的时间，然后再进行10次试验。在保留日，所有受试者进行20次试验。存在显著的组×日×试验交互作用，表明在各试验块和各天中表现均有所改善；然而，在最初的10次习得试验之后，实验组受试者始终显著优于对照组受试者。对脑电图数据的分析显示存在显著的四因素交互作用，表明在最初的10次习得试验之后，实验组受试者的α活动比对照组受试者更多。研究得出结论，α波段存在与学习运动任务相关的一致脑电图变化。
