Phase locking between EEG signals with different frequency as an index of learning outcomes of CSCL

本研究的目的是检测溯因推理任务中固有的锁相现象，溯因推理是CSCL（Comuper Supported Collaborative Learning，计算机支持的协作学习）中逻辑思维学习结果的候选指标。我们检测到的出现间歇性1：5相位锁定之间的θ和δ振荡在人类头皮脑电中的外展推理任务和记忆任务，通过使用小波变换。然而，锁相出现的持续时间的差异不能在两个任务之间检测到。进一步设计溯因推理任务，迫使密集的逻辑思维是剩余的。

The aim in the present study is to detect phase locking inherent in the tasks forcing abductive inference, which is a candidate of the index for logical thinking as a learning outocomes in CSCL(Comuper Supported Collaborative Learning). We detected the emergence of intermittent 1:5 phase locking between theta and delta oscillation in human scalp EEG in both an abductive inference task and a memory task by use of a wavelet transformation. However, the difference of the duration of the phase locking emergence could not be detected between the two tasks. Further design of abductive inference tasks forcing intensive logical thinking is remaining.