Smooth pursuit parameter values.

<p>(A) Velocity accuracy, representing the percentage of time the smooth pursuit velocity differed less than 20% from the visual target velocity. (B) Gain, where a value below 1.0 represents that the smooth pursuit velocity was below the visual target velocity. The bars represent the mean group values and the whiskers the SEM values. P-values to the level of trends <0.1 are presented in the figures.