B. Knutson et al., “Distributed Neural Representation of Expected Value,” J Nsci 25 (2005): 4806; M. Stefani and B. Moghaddam, “Rule Learning and Reward Contingency Are Associated with Dissociable Patterns of Dopamine Activation in the Rat Prefrontal Cortex, Nucleus Accumbens, and Dorsal Striatum,” J Nsci 26 (2006): 8810.
