Figure 6.
Linear regression analysis of free versus fix delay activity for individual neurons. A, B, Regression slopes for FEF and non-FEF recordings. Gray bars represent the distribution of cells with a significant (p < 0.05) correlation between fix and free activity. The solid vertical lines are medians for the distributions of significant cells. The dotted vertical lines are the medians for all cells. C, D, Regression intercepts normalized to maximum activity (Rmax). Conventions are as in A and B.