PROBLEM TO BE SOLVED: To provide a device and method to detect change of subjects physiologic or psychological state with high sensitivity.SOLUTION: The device to detect physiologic and psychological state 1 provides a physiologic indicator measuring means 10 to measure subjects physiologic indicator, a fluctuation extracting means 18 to extract fluctuation of the physiologic indicator measured by the physiologic indicator measuring means, a fluctuation characteristic extracting means 20 to extract a characteristic change in fluctuation from the fluctuation of the physiologic indicator extracted by the fluctuation extracting means, and a significant characteristic extracting means 24 to detect a characteristic change of which occurrence frequency is beyond a specified threshold from the characteristic change of fluctuation extracted by the fluctuation characteristic extracting means, and it detects change of subjects physiologic and psychological state from the results detected by the significant characteristic extracting means.COPYRIGHT: (C)2007,JPO&INPIT【課題】 被験者の生理状態・心理状態の変化を感度良く検出可能な装置及び方法を提供する。【解決手段】 生理・心理状態検出装置1は、被験者の生理指標を計測する生理指標計測手段10と、生理指標計測手段により計測された生理指標から、生理指標のゆらぎを抽出するゆらぎ抽出手段18と、ゆらぎ抽出手段により抽出された生理指標のゆらぎから、ゆらぎの特徴的変化を抽出するゆらぎ特徴抽出手段20と、ゆらぎ特徴抽出手段により抽出されたゆらぎの特徴的変化から、発生頻度が所定閾値を越えた特徴的変化を検出する有意特徴検出手段24と、を備え、有意特徴検出手段の検出結果に基づいて、被験者の生理・心理状態の変化を検出する。【選択図】 図1