Figure 11.

Coding of values in variable-reward condition. (A) The proportion of neurons coding the values of the presented-trial condition (i) and of the variable-reward condition (ii). In regression analysis with all trials, the proportion of neurons which had significant regression coefficients was shown: p < 0.01 in a two-sided Student's t-test. Values consisted of five variables (i.e., action values for left and right choices, state value, chosen value, and policy) in the learning interference model. Lines and symbols as in Figure 8A. Dorsomedial striatal neurons mainly encoded values of the variable-reward condition. (B) The proportion of neurons encoding values of the variable-reward condition in fixed-reward-condition trials. Neurons representing values of the variable-reward condition were investigated with regression analysis using fixed-reward-condition trials. Lines and symbols as in (A).