PROBLEM TO BE SOLVED: To provide a technique for quantizing a sleep feeling objectively.SOLUTION: The brain wave information indicating the power of a δ wave, the component ratio of a θ wave and the component ratio of an α wave in the brain wave of a subject at a sleeping time are acquired, and the sleeping feel of the subject is determined on the basis of the power of a δ wave, the component ratio of a θ wave and the component ratio of an α wave.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】睡眠感を客観的に定量化する技術を提供する。【解決手段】睡眠時の被験者の脳波における、δ波のパワー、θ波の成分割合及びα波の成分割合を示す脳波分析情報を取得し、その取得された脳波分析情報により示されるδ波のパワー、θ波の成分割合及びα波の成分割合に基づいて、被験者の睡眠感を判定する、ことを含む。【選択図】図1
