Hanneke E.M. den Ouden

This study investigates how dopamine modulates striatal activity during working memory output-gating using fMRI and finds that sulpiride alters striatal activity and reduces neural stimulus selectivity in visual cortex, affecting task performance.

This study uses ultrasound neuromodulation to show that the dorsal anterior cingulate cortex and anterior insula have distinct roles in Pavlovian biases: aIns reduces reward credit-taking and punishment ignoring, while dACC increases cue valence as reinforcer signal.

The paper replicates a previous finding that cognitive effort is influenced by reward rate but shows that recent performance history better explains effort allocation, suggesting a reinterpretation of prior results.

This paper demonstrates that transcranial ultrasonic stimulation (TUS) modulates saccadic eye movements in humans with high spatial and temporal precision, and shows that baseline GABAergic inhibitory tone predicts response variability.

This study identifies strategies to mitigate somatosensory confounds during transcranial ultrasonic stimulation by optimizing parameters such as pulse shaping and transducer settings.

The study investigates how the brain generalizes abstract linguistic rules to form novel meanings, finding that a frontoparietal network, not the medial prefrontal-hippocampal network, supports this process.

This study shows that auditory confounds, not direct neuromodulation, drive motor inhibition from transcranial ultrasonic stimulation in humans.

This study investigates how stake magnitude affects Pavlovian biases and response speed in humans, finding that high stakes slow responses without altering bias magnitude.

This study investigates how pupil dilation reflects effortful action invigoration in overcoming aversive Pavlovian biases during a task involving subliminal emotional cues.

This study investigates how LSD affects reinforcement learning in humans by examining changes in learning rates, reinforcement sensitivity, and exploratory behavior during a probabilistic reversal learning task.

The paper shows that instrumental action plans shape selective attention to reward/punishment information, which biases Pavlovian responses and improves performance.

This study investigates how cortical dopamine affects motivational biases in automated behavior using a pharmacological intervention in healthy individuals.

The paper examines how striatal BOLD and midfrontal theta power relate to motivation for action during a Go/NoGo task, finding distinct roles for early and late theta components in reflecting motivational biases and behavioral responses.

The paper shows that cortical regions encode biased prediction errors before subcortical regions during action-outcome learning.

This paper demonstrates that targeted brain stimulation enhancing theta-gamma phase-amplitude coupling improves emotional-action control in a social-emotional task.

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

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.

This study investigates how hyperdopaminergic states affect decision-making in rats by examining the role of VTA projections to the nucleus accumbens and prefrontal cortex.