PROBLEM TO BE SOLVED: To appropriately identify a muscle involved in a predetermined motion operation.SOLUTION: A muscular activity auralization device includes: detection means for detecting temporal characteristics of a myoelectric potential indicating an activity of muscles in a plurality of spots for each of the plurality of spots； image pick-up means for picking up images from the start to the stop of the movement by a plurality of times of trials of motion operations as an activity of muscles for each of the plurality of times of trials； measurement means for measuring a value indicating propriety of the trial for each of the plurality of times of trials on the basis of the image pick-up result； calculation means for calculating a feature amount indicating the amplitude of the myoelectric potential by integrating the temporal characteristics of the myoelectric potential indicated by the detection result before and after the timing at which an object to be moved is moved by the trial, for each of the muscle in the plurality of spots； and identification means for calculating the correlation between the measured value and the feature amount calculated by the calculation means for each of the muscles in the plurality of spots, and identifying the spot of the muscle whose degree of the correlation satisfies a predetermined condition, of the muscles in the plurality of spots.SELECTED DRAWING: Figure 1【課題】所定の運動動作に関わる筋肉を適切に特定する。【解決手段】実施形態における筋活動可聴化装置は、複数箇所の筋肉の活動を示す筋電位の時間特性を複数箇所のそれぞれについて検出する検出手段と、筋肉の活動としての、複数回数の運動動作の試行に移動開始から停止までの画像を複数回数の試行のそれぞれについて撮像する撮像手段と、撮像結果に基づいて、試行の良し悪しを示す値を複数回数の試行のそれぞれについて計測する計測手段と、検出結果で示される、試行による移動対象物が移動したタイミングの前後における筋電位の時間特性を積分することにより、筋電位の振幅を示す特徴量を複数箇所の筋肉のそれぞれについて計算する計算手段と、計測した値と計算手段により計算した特徴量との相関を複数箇所の筋肉のそれぞれについて計算し、複数箇所の筋肉のうち、相関の度合いが所定の条件を満たす筋肉の箇所を特定する特定手段とを有する。【選択図】図１
