Figure 6. Effects of Eligibility Trace on VOR Calibration.

(A) Eligibility trace (blue line) used by Kettner et al. [40] and (B–D) compared to the trace required for VOR learning up to 25 Hz (green line).

(B) Learning as measured by retinal slip error.

(C) System gain for sinusoidal input signals as a function of frequency before and after learning.

(D) Time course of retinal slip in response to colored-noise head-velocity input after learning.