Danae Papadopetraki

This study shows dopamine enhances both reinforcement learning and working memory, reduces effort costs, and highlights the need to account for its effects on working memory when studying reinforcement learning.

This study compares the subjective effort costs of distractor resistance and flexible updating in working memory tasks, finding that distractor resistance is more effortful.

The paper investigates whether simple trait measures correlate with striatal dopamine synthesis capacity and finds no significant correlations.

This study shows methylphenidate increases preference for mental labor over leisure, especially in individuals with higher baseline striatal dopamine.

The paper shows methylphenidate enhances cognitive effort by altering the benefit-to-cost ratio of cognitive work through striatal dopamine signaling.