Fig. 6: P1 mutual information in sensory vs. categorical neurons during hit and error trials.
S2 population firing rate mutual information associated with P1 identity, computed as a function of time (IP1(t), Eq. (7)) during hit (blue) and error (red) TPDT trials. Note that while I1s,P1 (Eq. (6)) computed the information at a single time bin that covers the whole stimulus period, IP1(t) (Eq. (7)) measured the information associated with P1 in each time bin (200 ms window with 50 ms steps, “Methods”). a Neurons with at least 4 consecutive time bins with significant P1 coding (n = 1253) were employed to calculate IP1(t) during hit and error trials. Intriguingly, most of these neurons show intermediate coding, and do not belong to either subgroup. b IP1(t) for hit and error trials of the sensory S2 neurons (IPer > 0.25bits, Eq. (10), n = 105). As one could observe, the mutual information was nearly invariant during error trials. c IP1(t) for hit and error trials of the categorical subgroup of S2 neurons (I1s,P1 > 0.25bits, Eq. (6), n = 150). The P1 mutual information in hits increased slower than for sensory neurons and decreased drastically in errors. Shadows indicate the information confidence intervals at 95% estimated through bootstrap technique.
