https://academic.oup.com/brain/article/135/6/1871/329665 (Publisher version)
Shiner, T., Seymour, B., Wunderlich, K., Hill, C., Bhatia, K., Dayan, P., et al. (2012). Dopamine and performance in a reinforcement learning task: evidence from Parkinson’s disease. Brain, 135(6), 1871-1883. doi:10.1093/brain/aws083.