Fig. 9.

Functional properties of putative interneurons and pyramidal cells. A: neurons were classified as putative pyramidal neurons or interneurons according to physiological criteria including spike width, mean firing rate, and tendency to fire in bursts. Burst firing was quantified from each neuron's autocorrelation. FR, firing rate (s/sec, spikes per second). B: putative pyramidal cells and interneurons exhibited systematic differences in the amounts of stimulus identity or response direction information. For each box, the central mark is the median, the edges of the box are the interquartile range, the whiskers extend to the most extreme data points not considered outliers, and outliers are plotted individually.