Shiner, T; Seymour, B; Wunderlich, K; Hill, C; Bhatia, KP; Dayan, P; Dolan, RJ; (2012) Dopamine and performance in a reinforcement learning task: evidence from Parkinson's disease. Brain , 135 (6) 1871 -1883. 10.1093/brain/aws083. Green open access