David Meder

This study links nigrostriatal dopamine loss to reduced motor vigour in Parkinson's disease using functional MRI and dopamine transporter PET, showing impaired striatal recruitment and reward-related signaling.

This study shows that Parkinson's Disease causes reduced structural and functional activity in the caudal locus coeruleus, linked to non-motor symptoms.

This study investigates how brain networks reconfigure during reward prediction error processing in different experimental contexts using fMRI.

This paper investigates the link between impulsivity and preSMA activity during sequential gambling using rTMS, finding that preSMA modulation alters the relationship between trait and state impulsivity.

The paper shows that four brain regions represent value estimates on different time-scales, interacting to support flexible decision-making.