Figure 8. VOR Calibration with a Second Site of Plasticity in the Brainstem at 5Hz Training Frequency.

(A) Learning as measured by retinal-slip error.

(B) Generalization of gain to frequencies other than that used in training. Graph format chosen to resemble that of Figure 7 of Raymond and Lisberger [25]. Black disc on “post” curve indicates training frequency.

(C) Gain of system as training proceeds, with or without the simulated cerebellum. The effect of cerebellar inactivation becomes smaller with longer training.

(D) Output of simulated cerebellum as training proceeds. An initial fast rise from a pre-training value of 0 is succeeded by a slower fall, eventually back to 0.