Fig. 6. Variance and EV effects in low and high-frequency bands.

Each trace shows the average GLM coefficient in the α/low-β (8–18 Hz, pink, a and b) and high-β/low-γ (18–43 Hz, purple, c and d) (mean and SEM across the frequencies). The insets show the raw LFP power as a function of variance or EV in the ROIs shown in Fig. 5. The left gray axis and gray curve correspond to dlPFC, and, the right black axis and dashed black curve correspond to 7A. For these plots, z-transformed LFP power was first averaged within each electrode across all the trials collected on that electrode, and the data show average and SEM across n = 96 electrodes (48 in each monkey) as a function of the variable of interest (variance and EV). Violin plots show individual data points.