Effects of Error Modulation-Based Visual and Haptic Feedback Fusion Strategies on Motor Learning and Motivation

Figure 5

Exponential curve fitting during Training. (a) NEM, (b) VAHR, and (c) VRHA. NEM, visual and haptic feedback without error modulation; VAHR, visual error amplification combined with haptic error reduction; VRHA, visual error reduction combined with haptic error amplification; a, the amount of learning; b, the rate of learning; c, the average tracking error convergence at the end of training; R², goodness of fit.

(a)

(b)

(c)