| 摘要 |
PROBLEM TO BE SOLVED: To provide a sleep-awake state automatic detection method that automatically evaluates a quality of sleep, disease state, and medication effect according to normalized data of brain wave activity.SOLUTION: Low output frequency bandwidth information is determined from spectrum data. In order to determine adjusted source data which is useful for the acquisition of low output frequency bandwidth information, untreated signal data can be adjusted so as to increase an output dynamic range within the low output frequency bandwidth compared to higher output frequency bandwidth. The low output frequency bandwidth information can be used for analyzing a variety of untreated signal data. For example, in order to determine a sleep state, low output frequency bandwidth information within target brain wave inspection data during sleeping period can be used. Similarly, automatic all frequency spectrum brain wave inspection signal analyzation can be useful for special analysis including the evaluation of sleep quality, detection of disease state, and determination of medication effect on sleep state. |
