Dissecting components of reward: 'liking', 'wanting', and learning

Berridge, Kent C., Terry E. Robinson, and J. W. Aldridge. 2009. “Dissecting components of reward: 'liking', 'wanting', and learning.” Current opinion in pharmacology 9 (1): 65–73. doi:10.1016/j.coph.2008.12.014.