Different Origins of Gamma Rhythm and High-Gamma Activity in Macaque Visual Cortex
Figure 2
Correlations between power and firing rates have different signs in gamma versus high-gamma bands.
(A) Average relative change in power between 200 and 400 ms from baseline power (difference between the colored traces and the black trace in Figure 1F and 1I), for 15 and 104 sites in Monkeys 1 (left panel) and 2 (right panel). Radii are listed again in the legend for clarity. (B) Spearman rank correlation between the six power values (one for each size) at each frequency and the six firing rates values, computed individually for each site and then averaged. Black and gray traces show the mean and SEM of 15 and 104 sites in the two monkeys. The correlation values significantly different from zero are shown in green (p<0.01, uncorrected) and red (p<0.05 with Bonferroni correction).
doi: https://doi.org/10.1371/journal.pbio.1000610.g002