Figure 4.

After a state transition, new state representations first emerge in OFC ensembles in the postreward epoch, after which it propagates to the other parts of the trial. Shown are results from a binary block decoder that tests how well OFC ensembles matched the old block pattern versus the new block pattern using sliding sets of 5 trials after a number block transition (see Materials and Methods). Spike trains were aligned to various events in the trial (shown with vertical dotted lines) and then concatenated and binned. Decoding percentages at each bin and set of trials were smoothed and converted into the color scale as shown for the heat plot. Red represents previous state-decoding. Blue represents new state-decoding. Vertical dotted lines on the color scale bar indicate significance levels for previous state or new state-decoding, based on a permutation test (p < 0.05, two-tailed).