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Differences in response to Positive Outcomes and Neutral Outcomes. A) The contrast of Positive Outcomes > Neutral Outcomes revealed effects within several a priori predicted regions, including medial caudate. B) Average percent signal change extracted from a priori selected regions of interest for Positive Outcomes and Neutral Outcomes. Overall, regions of interest were more responsive for Positive Outcomes than for Neutral Outcomes. Error bars indicate standard errors.
