• Publications
  • Influence
Mesolimbic Functional Magnetic Resonance Imaging Activations during Reward Anticipation Correlate with Reward-Related Ventral Striatal Dopamine Release
TLDR
Evidence is provided that dopaminergic neurotransmission plays a quantitative role in human mesolimbic reward processing and the combined neurochemical and hemodynamic imaging approach used here opens up new perspectives for the investigation of molecular mechanisms underlying human cognition.
Event-related brain potential correlates of two states of conscious awareness in memory.
TLDR
The results provide physiological evidence for two types of conscious awareness in episodic memory retrieval, "autonoetic" and "noetic" awareness, respectively.
Dopamine restores reward prediction errors in old age
TLDR
The dopamine precursor levodopa (L-DOPA) increased the task-based learning rate and task performance in some older adults to the level of young adults and was linked to restoration of a canonical neural RPE.
Task-related and item-related brain processes of memory retrieval.
TLDR
The results provide converging hemodynamic and electrophysiological evidence for the distinction of task- and item-related processes, show that they map onto spatially and temporally distinct patterns of brain activity, and clarify the hemispheric encoding/retrieval asymmetry (HERA) model of prefrontal encoding and retrieval asymmetry.
Functional subregions of the human entorhinal cortex
TLDR
High-resolution functional magnetic resonance imaging is used to identify functional subdivisions of the human entorhinal cortex whose functional connectivity closely parallels the known anatomical connectivity patterns of the rodent and nonhuman primate EC.
Vascular hippocampal plasticity after aerobic exercise in older adults
TLDR
Aerobic exercise in young adults can induce vascular plasticity in the hippocampus, a critical region for recall and recognition memory, and whether healthy older adults also show such plasticity is investigated.
...
...