Fig. 6: Relationship between LFP gamma power and multi-unit firing rate.

a Relationship between raw gamma power and firing rate prior to training is shown for the spatial stimulus set, for selective, partially, and non-selective sites respectively (open circles). Filled circles represent mean power of data averaged in a bin centered on the point, plotted against the mean firing rate of multi-unit records averaged from the same site. Error bars represent standard deviation. Data binned in this fashion are presented for visualization purposes; regression lines were determined based on the raw data, further treating individual monkeys as random effects. b Relationship between raw gamma power and firing rate, as computed in a, after training. c Relationship between gamma power relative to the inter-trial baseline and firing rate, prior to training. d Relationship between relative gamma power and firing rate as computed in c, after training.