Figure 1. .

Firing rate properties of a near-response cell in animal M1. Top row shows multiple overlaid trials of fixation switch from right eye viewing to left eye viewing (A) or vice-versa (B) of a straight ahead (0°) target. Bottom row (C, D) shows the neural responses. Trials are aligned on the fixation switch. When the right eye is viewing the target (0–1 seconds in left column; 1–2 seconds in right column), the angle of exotropia is low (∼20°) and the neural response rate is high (∼125 spks/s). When the left eye is viewing the target (1–2 seconds in left column; 0–1 seconds in right column), the angle of exotropia is high (∼30°) and the neural response is low (∼20 spks/s). Legend: Right Eye – red; Left eye – blue; Individual trial firing rates – gray; average firing rate – black; rightward movements are positive and leftward movements are negative.