The abstract is read at the publisher; the summary is JClub's.
A dual-effort choice task shows that reducing dopaminergic signalling lowers both extrinsic and intrinsic motivation, with the magnitude depending on the drug mechanism.
- Why it matters: Motivation loss cuts across neuropsychiatric and neurodegenerative diseases, yet most drug testing targets extrinsic reward, potentially missing neurobiological differences between motivation types.
- What they did: The study built a single task environment that simultaneously measures intrinsic and extrinsic choice, then screened clinically relevant drugs to compare neurochemical effects across motivation options.
- The result: Dopaminergic reduction consistently reduced motivation for both options, while acute serotonergic and dopaminergic increases produced heterogeneous effects, enabling finer characterization of drug actions on distinct motivated behaviours.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.