New paper by Annelies van Nuland in Brain

Our study entitled “Effects of dopamine on reinforcement learning in Parkinson’s disease depend on motor phenotype” is now published in the Brain journal. In this study, we investigated whether interindividual heterogeneity in tremor symptoms could account for the puzzlingly large variability in the effects of dopaminergic medication on reinforcement learning. We found that in non-tremor patients, dopaminergic medication improved reward-based choice, replicating previous studies, whereas dopaminergic medication improved learning from punishment in tremor-dominant patients. The paper can be downloaded here.

There is also a scientific commentary and a radio clip about this paper.