Fig. 3.

Horizontal deviation for all trials on a day in which lidocaine was used to inactivate cerebellar cortex in monkey G (injection D). Positive values on the y-axis represent deviations to the right of target, and negative values represent deviations to the left of target. All reaches before injection (labeled vertical bar) land centered near the target, while reaches after injection are markedly to the right of target when prisms are donned. Means ± SD are shown below each block of prism and no-prism reaches.