PsychologyPNAS Nexus

Cognitive effort increases the intensity of rewards

M. Wahab, N. L. Mead, et al.

Intense cognitive effort can amplify the hedonic impact of rewards and drive overconsumption: in rats, pre-task effort boosted cocaine intake and psychostimulant effects (reversed by 2–4 h rest), while in humans effort increased enjoyment and consumption of tasty unhealthy food without affecting neutral judgments. Research conducted by Mejda Wahab, Nicole L. Mead, Stevenson Desmercieres, Virginie Lardeux, Emilie Dugast, Roy F. Baumeister, and Marcello Solinas.... show more

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