Tobias Sommer

This study shows that recent adversity reduces autonomic threat-safety discrimination and predicts higher depression levels later, with distinct brain activation patterns linked to these effects.

The paper investigates how people use surprise based on physical priors to communicate without shared language, showing a correlation between surprise and physiological/neural responses.

This study investigates the neural mechanisms of creative problem-solving, finding that representational changes in the visual cortex and activations in the amygdala and hippocampus predict memory formation.

This study investigates dopamine's role in human reinforcement learning using pharmacological interventions and fMRI, finding reduced decision thresholds under dopaminergic manipulations.

The paper shows that high-confident word recognition in humans incurs incidental reinstatement of associated face and scene representations in medial temporal lobe subregions, even without explicit retrieval instructions.

This study uses a diffusion model to analyze how haloperidol affects temporal discounting and decision-making in humans, finding reduced discounting and faster response times.

This study investigates how dopamine affects memory retrieval and metacognition using pharmacological fMRI in healthy humans, finding improved retrieval accuracy but impaired confidence.

The paper investigates how emotional arousal affects memory through distinct amygdala mechanisms, finding that delayed memory effects are more stable over time and linked to amygdala-hippocampus interactions.

The paper examines how emotional arousal affects memory encoding and consolidation, finding that enhancements occur at both immediate and delayed tests but with distinct underlying processes.