Motivation for reward as a function of required effort: Dissociating the ‘liking’ from the ‘wanting’ system in humans

Waugh, C.E., & Gotlib, I.H. (2008). Motivation for reward as a function of required effort: Dissociating the ‘liking’ from the ‘wanting’ system in humansMotivation and Emotion, 32, 323-330. PDF >>>