Andrew S. Kayser

Temporal fMRI Dynamics Map Dopamine Physiology

The paper maps dopamine physiology using hemodynamic latency from fMRI, showing distinct patterns in the nucleus accumbens and linking them to addictive behaviors and substance use disorders.

A dopaminergic basis of behavioral control

This study identifies distinct dopamine mechanisms for behavioral control and model-based knowledge formation using PET, fMRI, and pharmacological interventions.

Nothing but lies: improving the validity of neural predictors of deception

The paper improves the validity of neural predictors of deception by identifying and removing confounding signals using novel machine learning methods.

Cerebral perfusion in post-stroke aphasia and its relation to residual language abilities

This study examines cerebral perfusion in chronic aphasia and finds reduced perfusion in left hemisphere language areas and a link between perfusion and language abilities.

Dopamine and risky decision-making in pathological and problem gamblers.

This study examines if increasing frontal dopamine with tolcapone reduces risky choices in gamblers, finding no consistent benefit and increased risk-taking.