Distinct regions of the striatum underlying effort, movement initiation and effort discounting.

Interestingly, individual differences in effort-activation signal were positively associated with VS responses during presentation of effort information during decision-making (r (17) =0.51, p=0.02, 95% CI: [0.07, 0.78]), whereas individual differences in effort-discounting signals exhibited no significant correlation, but a nonsignificant trend in the opposite direction (r (17) =−0.41, p=0.08, 95% CI: [−0.73, 0.05]; Fig. 5a ).

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