Figure 7.

Adaptation enhances the information content of neuronal responses. (A) Mutual information (MI) between the whole stimulus set and the neuronal responses (from Figure 3) in adaptation condition (ordinate, 6 μm adaptation in green and 12 μm adaptation state in magenta) versus the non-adapted state (abscissa). Each data point corresponds to a single neuron (n = 73; square markers) or a cluster of multi-units (n = 86; diamonds). (B) As in (A), but plotting the response entropy of individual neuronal recordings. (C) As in (A,B), but plotting the response entropy conditional on stimulus. (D) Adaptation increases the average information content of individual spikes. Neuronal responses from different population sizes were pooled together and plotted against the average pooled spiking for every population size. (E) Percent increase in the single spike information in the adapted states relative to the non-adapted state. Data is from (D). The data points after the break in the abscissa include multi-unit clusters with the single-unit data. From the firing rates, we estimate that the total population consisted of ~215 single units. Modified from Adibi et al. (2013a).