通过心算这一典型的知识作业进行脑电实验,分析反应时不同的被试在脑地形图以及功率谱上的区别,探讨了用心智操作脑电方法研究知识型作业胜任力的可行性。结果表明,胜任力水平不同的被试在脑区激活上表现出差异,快组有更大程度的额叶激活。同时,在α(8~12.8Hz)频带功率值两组表现出明显的差异。对于快组,其功率小于慢组的功率。
Based on the mental arithmetic task, computed EEG topography and brain electric power spectrum of the different competencies are analyzed. The results indicate the difference between the quick and slow groups and the frontal lobe of quick group is activated in higher degree. There is difference in α (8-12.8 Hz). The frequency band of quick group is lower than the slow group.