(A) Firing rate of 1 example neuron significantly modulated by the expected value of the first offer both when it was being presented (multiple linear regression: β = 0.041, p = 0.011) and when it was remembered (β = 0.051, p = 0.0097). (B) Example dACC neuron activity, significantly modulated by the value of the second offer while it was being presented (β = 0.046, p = 0.0061). (C) Percentage of neurons significantly tuned to the value of the first (red) and second (blue) offers through the course of the trial, using a multiple linear regression with a sliding 500-ms window. Data used to generate these plots can be found at https://doi.org/10.5061/dryad.h52f8. dACC, dorsal anterior cingulate cortex; EV, expected value of gamble.