PROBLEM TO BE SOLVED: To provide a device with a function for improving the fluctuation of the pulsation of a person to be measured, which is the device for displaying a time domain analyzed result obtained on the basis of the detected pulsation.SOLUTION: The information processing method in the heartbeat fluctuation detector comprises: a process (step S404) of judging the balance of the sympathetic nerve and parasympathetic nerve of the person to be measured and the continuation condition of the balance on the basis of the dispersion of Lorenz plot data obtained by detecting the pulsation of the person to be measured and the body temperature of the person to be measured and a process (step S408) of displaying a moving image for which an operation for improving the balance of the sympathetic nerve and parasympathetic nerve of the person to be measured is recorded corresponding to the judged result.COPYRIGHT: (C)2008,JPO&INPIT【課題】 被測定者の拍動のゆらぎを改善する。【解決手段】 心拍ゆらぎ検出装置における情報処理方法であって、被測定者の拍動を検出することで得られたローレンツプロットデータのばらつきと、前記被測定者の体温とに基づいて、前記被測定者の交感神経と副交感神経とのバランスと該バランスの継続状況とを判定する工程(ステップS404)と、前記判定結果に応じて、前記被測定者の交感神経と副交感神経とのバランスを改善するための動作が記録された動画像を表示する工程(ステップS408)とを備える。【選択図】 図4