Figure 3.

Mean grip-load force coupling as a function of trial and group. A, Average correlation coefficients between grip force and load force while experiencing the object in the channel. B, Average correlation coefficients between grip force and load force when moving the object without the channel. Dashed lines represent exponentials fit to the data. The comparison between the 3 groups indicates that prior experience moving in the channel (Groups B and C) benefited grip-load coupling. Error bars correspond to 1 SE.