Figure 5.

Independence of neuronal probability coding in striatum from behavioral probability distortion. a, Activation in striatum showing linear activation increases with increasing probabilities. Activation corresponded significantly better with linear than distorted probability coding (P < 0.05; peak at −10/4/−4). b, Averaged signal change as a function of probability at peak voxel shown in a. Error bars correspond to SEM. c, Absence of relation of linear probability coding and behavioral curvature (gamma) in striatal voxel shown in a (r = 0.16; p = 0.60; Spearman's r = 0.18; p = 0.53; Kendall's tau = 0.10; p = 0.63).