Figure 4.

Amygdala population decoding analysis. A, Entire trial decoding. The tested variable was trial type (experiential vs observational). The vertical red line indicates average decoding accuracy in held-out trials after training with a maximum Pearson correlation classifier. The histogram indicates decoding accuracy in each instance of a permutation test, shuffling variable labels; p values were obtained by computing the proportion of permutation iterations in which the decoding accuracy exceeded the true decoding accuracy. B, Same, decoding within the preoutcome period. Decoded variables, from left to right, were EV (experiential) and EV (observational). C, Same, decoding within the postoutcome period. Decoded variables, from left to right, were outcome (experiential), outcome (observational), RPE (experiential), and RPE (observational).