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. 2024 Dec 30;14:31676. doi: 10.1038/s41598-024-80828-x

Fig. 7.

Fig. 7

(A) The prosthesis control loop and the discretization of EMG feedback levels in the normalized scale. The processed EMG (myoelectric signal) was mapped to the desired prosthesis closing velocity through a piecewise linear function, while the discrete EMG level was conveyed to the user via vibrotactile stimulation. (B) Vibrotactile spatial activation patterns (EMG feedback) that indicated the five EMG levels.