| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem with a method of determining sleep phases: that is, while monitoring sleep conditions is indispensable for pathological analysis and health care associated with sleep disorders and sleep deprivation, and there is a sleep polygraph measuring method as an international standard for detecting sleeping conditions, it causes psychological pain as it requires a subject to wear a number of detectors, making the difficult to be obtained from the natural state of the subject. SOLUTION: Efforts are made to make more natural a measuring method that constrains a subject, and a means of indirectly gathering information from the subject's body by use of an air mat is an excellent method among these. However, the data available cannot help but become scarce, and conventionally there is only such a simple analysis as making a distinction between awakening and sleep or between REM sleep and non-REM sleep. Then, a method of classifying the data for analysis is established, so that six sleep phases conforming to the international standard can be identified based on the method. Thus, a variety of analyses, diagnoses and measures on sleep are taken more universally while eliminating such disturbances as differences among individuals and among physical conditions.
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