Dopamine and the Cognitive Downside of a Promised Bonus.

Aarts, E, Wallace DL, Dang LC, Jagust WJ, Cools R, D'Esposito M.  2014.  Dopamine and the Cognitive Downside of a Promised Bonus., 2014 Feb 13. Psychological science.


It is often assumed that the promise of a monetary bonus improves cognitive control. We show that in fact appetitive motivation can also impair cognitive control, depending on baseline levels of dopamine-synthesis capacity in the striatum. These data not only demonstrate that appetitive motivation can have paradoxical detrimental effects for cognitive control but also provide a mechanistic account of these effects.