Abstract

Reward Fictive reward signals in the anterior cingulate cortex Hayden, B. Y. et al. Science 324, 948–950 (2009) A key role for similarity in vicarious reward Mobbs, D. et al. Science 324, 900 (2009) Two recent papers investigated how we process rewards experienced by someone else or rewards that would have been the outcome of actions that we did not make. Hayden et al. recorded from neurons in the anterior cingulate cortex (ACC) of monkeys completing a choice task in which, after selection, the value of all options, including those not selected (fictive rewards), was revealed.