Figure 10.

Changes in the firing rate (Unit FR) of a VPS neuron that received convergent input from the contralateral posterior canal during optokinetic nystagmus (OKN)/OKAN in the left side down (A–C) or right side down (D–F) positions. For each position, the neuron was tested while upright (A,D) or while tilted 30° (B,E) or 60° (C,F). (A,D) are replicated from the same data. V yaw is the yaw slow phase eye velocity and V pitch is the slow phase pitch eye velocity. ON denotes the OKN interval, and OFF denotes the OKAN interval. Data in panel (D) are duplicate of panel (A). This was done to organize data in columns to simplify comparison.