Experimental research on biological signal processing

近年来，许多神经科学的实验工作被研究用于医学应用。这就需要基于脑电图和脑磁图这些海量数据的信号处理算法技术。本研究利用脑电数据集，基于非平稳谱分析和瞬时最大熵法，自动分析了快速眼动（REM）、非快速眼动（NREM）和深/浅睡眠的睡眠状态。睡眠纺锤波与脑电图δ波呈负相关。这似乎暗示了大脑活动的几何关系。在另一项工作中，我们研究了鱼脑的神经行为学作为人类大脑基本知识获取的简化对象。

Recently many experimental works in neurological science are investigated for medical applications. Then algorithmical technology of signal processing is required based on those huge data, which are Electroencephalogram and Magnetic-encephalogram.In this study, the sleep status of REM (Rapid Eye Movement), NREM (Non-REM), and Deep/light sleep were analyzed automatically based on nonstationary spectral analysis, IMEM (the Instantaneous Maximum Entropy Method) using the data sets of EEG.We found negative relation of sleep spindle and delta wave of EEG.It seems to suggest an geometric relationship of brain activities.In another work, we investigated neuronethology of fish brain as simplified objects for acquisition of basic knowledge of human brain.