Ruben van den Bosch

This study shows that low-grade inflammation in obesity reduces effortful food choices by increasing aversion to effort and altering dmPFC processing.

This study investigates how dopamine modulates striatal activity during working memory output-gating using fMRI and finds that sulpiride alters striatal activity and reduces neural stimulus selectivity in visual cortex, affecting task performance.

The paper validates the REACT method for isolating dopamine-specific effects of methylphenidate on brain function using fMRI and PET data.

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.

The paper investigates whether fatigue and depressive mood after COVID-19 are associated with altered decision-making, finding that post-COVID fatigue reduces reward sensitivity.

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

The paper links striatal dopamine synthesis capacity to smartphone social activity using PET scans and behavioral data from healthy adults.

This study investigates whether dopamine synthesis capacity predicts individual variation in curiosity by analyzing behavioral and neuroimaging data.

The study replicates a previous finding that reward effects on cognitive control depend on dopamine synthesis capacity but fails to find a correlation in a larger sample using a different radiotracer.

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.