Thu, 21 Aug 2008 02:19:51 BST CiteULike: stefanherzog Varner http://www.citeulike.org/user/stefanherzog/author/Varner CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/stefanherzog/article/315929 <i>Neuroreport, Vol. 12, No. 17. (4 December 2001), pp. 3683-3687.</i><br /><br />Reward processing involves both appetitive and consummatory phases. We sought to examine whether reward anticipation vs outcomes would recruit different regions of ventral forebrain circuitry using event-related fMRI. Nine healthy volunteers participated in a monetary incentive delays task in which they either responded to a cued target for monetary reward, responded to a cued target for no reward, or did not respond to a cued target during scanning. Multiple regression analyses indicated that while anticipation of reward vs non-reward activated foci in the ventral striatum, reward vs non-reward outcomes activated foci in the ventromedial frontal cortex. These findings suggest that reward anticipation and outcomes may differentially recruit distinct regions that lie along the trajectory of ascending dopamine projections. Dissociation of reward anticipation and outcome with event-related fMRI. B Knutson GW Fong CM Adams JL Varner D Hommer Neuroreport, Vol. 12, No. 17. (4 December 2001), pp. 3683-3687. 2005-09-12T15:53:00-00:00 2001 Neuroreport 0959-4965 12 17 3683 3687 fmri neuroeconomics neuroscience reward