Adaptive control of movement deceleration during saccades
Fig 3
Both acceleration and deceleration period commands exhibit spontaneous recovery. A. Experimental design. Perturbation block was followed by an extinction block, and then a block of error clamp trials. Half of the subjects experienced horizontal errors following vertical saccades (left panel), while the other half experienced vertical errors following horizontal saccades (right panel). B. Measured data. C. A standard two-state model was fit to the measured data (trace labeled total). The fast and slow states that are predicted by the model are shown. D. Eye velocity in the direction of error during the trials at end of adaptation (t1), at end of extinction (t2), and during error clamp (t3). E. Spontaneous recovery, defined as [H(t3)−H(t2)]/H(t1).