Ruud van Zessen

The paper shows that cocaine exposure causes opposing activity changes in D1R and D2R SPNs in the NAc, with ERK inhibition reducing D1R responses during sensitization.

This study shows heroin activates specific dopamine neurons in the ventral tegmental area projecting to the medial shell of the nucleus accumbens, and manipulations of these neurons affect heroin reinforcement.

This study investigates how hyperdopaminergic states affect decision-making in rats by examining the role of VTA projections to the nucleus accumbens and prefrontal cortex.