Figure 4. Orbitofrontal neurons with higher resting time constant maintain a representation of chosen value from choice through the experience of reward delivery.
As in Figure 3B, a median split of neurons by their resting time constant was performed within each PFC area. The coefficient of partial determination (CPD) for chosen value in high time constant (blue) and low time constant (red) neurons is plotted timelocked to both choice and reward onset. Chosen value explained more of the variance in neuronal firing in the OFC neurons with a higher time constant both at choice (p=0.0066) and shortly after reward delivery (p=0.0082). Chosen value is therefore maintained across the trial within OFC, but returns to baseline before the next trial begins. CPD (mean ± SE) for chosen value was calculated by multiple linear regression analysis (see Materials and methods). Figure 4—figure supplement 1 shows a rank correlation of resting time constant with chosen value coding during the decision phase and reward delivery.
Figure 4—figure supplement 1. Rank correlation between resting time constant and chosen value correlates during choice and following reward.
