Fig. 3.

Saccade plan onset times for spikes and LFP. (A) SPO for a representative neuron. The average spike density function across all eight positions for the representative neuron (solid line) superimposed on the P value obtained from performing a t test indicating the probability that the signal was not different from the baseline (gray shaded region). The SPO for this neuron was −182 ms (vertical solid line). (B) SPO for the simultaneously recorded LFP signal. Same format as above. The SPO_LFP for this site was −107 ms (vertical solid line). (C) (Bottom) SPO_SPK (blue triangles) and SPO_LFP (green circles) for all sessions sorted by SPO_SPK times. Upper shows the mean SPO_SPK and SPO_LFP; t test, P < 10⁻²¹. Inset shows the distribution of ΔSPO between each SPK-LFP pair.