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. 2012 Mar 28;107(11):3144–3154. doi: 10.1152/jn.00477.2011

Fig. 5.

Fig. 5.

Within-session directional tuning changes. A: preferred direction (PD) distributions for unit × sessions significantly tuned in all three epochs (N = 130/281). B: distributions of change in PD between each pair of epochs and for each type of force field. C: classification of all unit × sessions recorded in force-field sessions (N = 80/281) based on interepoch PD changes. Kinematic units (black) had no significant changes between epochs. Dynamic units (blue) had a significant PD change between baseline and force-field trials and an opposite PD change from force-field to washout trials. Memory I units (red) had a significant PD change between baseline and force-field trials, but no change from force-field to washout trials. Memory II units (green) had no change from baseline to force-field trials, but a significant change from force-field to washout trials. The distribution of baseline-to-washout PD changes for only dynamic and memory I units (N = 40/281) is shown on the right. N = number of unit × sessions; P = P value for Rayleigh test (A) or t-test (B, C); m = mean PD in degrees.