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. 2016 Jan;20(1):15–24. doi: 10.1016/j.tics.2015.07.010

Figure 1.

Figure 1

The Effect of a Monetary Outcome on Mood and on Subsequent Neural and Behavioral Responses to Rewards. (A) Experimental design of [38]. To manipulate mood, a one-shot wheel-of-fortune (WoF) draw was held in between games, resulting in a gain or loss of $7. Game 1 and Game 2 involved different sets of slot machines with similar reward probabilities, and participants learned about the machines by trial and error. In the Test phase, participants chose between slot machines from Game 1 and Game 2. (B) In participants who reported high emotional instability, the WoF outcome affected self-reported mood (left, n = 28 per group; 1 is maximally happy and −1 is maximally unhappy) and striatal BOLD response to reward measured by fMRI (middle, n = 13 per group) during Game 2 as compared to Game 1 (shown are t values). In the test phase, those participants who experienced a WoF win preferred Game 2 machines, which they had played while in a better mood. By contrast, participants who had experienced a WoF loss preferred Game 1 machines, which they played before the WoF draw (right, n = 28 per group; 1 indicates complete preference for Game 2 machines). * P < 0.05, ** P < 0.001. Adapted from [38].