Comparison of Classification Accuracy in Different Frequency Bands With and Without Feature Selection Base on Correlation.

Note: NS: No couples of electrodes were selected since there was no main effect among emotional states (i.e. no feature selection was performed);**Accuracy with feature selection is significant higher than that without feature selection, p注：NS：未选取任何电极对，原因是情绪状态间不存在主效应（即未执行特征选择）；**经特征选择后的准确率显著高于未执行特征选择时的准确率，p