Monja I. Froböse

Role of GABA and NMDA receptors in shaping cortical timescales and large-scale network dynamics

This study manipulates GABA and NMDA receptors in humans to show that GABAergic inhibition increases neuronal timescales and alters large-scale network dynamics.

Bidirectional modulation of reward-guided decision making by dopamine

This study shows dopamine modulates how much reward attributes influence decisions without changing the integration strategy.

Shielding working memory from distraction is more effortful than flexible updating

This study compares the subjective effort costs of distractor resistance and flexible updating in working memory tasks, finding that distractor resistance is more effortful.

Cholinergic modulation of reinforcement learning and prefrontal value computations under uncertainty

This study investigates how muscarinic acetylcholine receptors influence reinforcement learning under uncertainty using a gambling and learning task with MEG recordings.

Distinct roles of dopamine and acetylcholine in delay- and effort-based decision making in humans

This study investigates the roles of dopamine and acetylcholine in human decision-making, finding that dopamine affects both effort and delay discounting, while acetylcholine specifically influences effort discounting.

Removal of reinforcement improves instrumental performance in humans by decreasing a general action bias rather than unmasking learnt associations

This study shows that removing reinforcement in humans improves instrumental performance by reducing a general action bias, not by unmasking learned associations.

Methylphenidate boosts choices of mental labor over leisure depending on baseline striatal dopamine

This study shows methylphenidate increases preference for mental labor over leisure, especially in individuals with higher baseline striatal dopamine.

Catecholaminergic modulation of the avoidance of cognitive control

This study investigates how catecholamines modulate avoidance of cognitive control during task switching, finding that methylphenidate increases avoidance in individuals with higher trait impulsivity.

Catecholamine Challenge Uncovers Distinct Mechanisms For Direct Versus Indirect, But Not Social Versus Non-Social, Learning

The paper tests whether social and individual learning differ due to social nature or directness using a catecholamine challenge, finding distinct effects on direct and indirect learning but not on social versus non-social learning.

Controlling striatal function via anterior frontal cortex stimulation

This study investigates the causal effects of transcranial magnetic stimulation on striatal processing of motivation, cognition, and action by targeting different frontal brain regions.