ADP learning in the DF. Plots show time series of position, velocity, and acceleration in the $x$- and $y$-dimension for a reaching movement to a target displayed only in $y$ from the start location. Five sequential trials are shown in the DF at different stages of the experiment. (a) First five trials on exposure to the DF. (b) Five trials after ADP learning in the DF is complete. (c) Five sequential trials in the postexposure phase when the NF is reapplied.