Behavioral and imaging findings in learners versus nonlearners. (a) Model‐derived (top) and model‐independent (bottom) differences in behavior between learners and nonlearners among the second half of lit‐arm choices. Error bars denote s.e.m. Asterisks indicate P < 0.05. The mean percentage of “entering” choices (±s.d.) was 92.08% ± 11.15% in learners and 55.99% ± 16.29% in nonlearners (t
53 = 8.09, P = 7 × 10−12). (b) Striatal Q effect during choice periods in the left posterolateral putamen in learners only (n = 15; peak MNI coordinates [x,y,z]: −33, −15, −2 mm). Map thresholded at PP ≥ 0.95. (c) Q effect in learners versus nonlearners in the right posterolateral putamen (MNI coordinates [x,y,z]: 33, −22, −2 mm, t
52 = 1.68, P = 0.048).