Yuji K. Takahashi

Persistent representation of a prior schema in the orbitofrontal cortex facilitates learning of a conflicting schema

This study shows that persistent representation of a prior schema in the orbitofrontal cortex supports learning of a conflicting schema in rats.

Dopaminergic responses to identity prediction errors depend differently on the orbitofrontal cortex and hippocampus

This study shows that dopamine neuron prediction error signaling for reward value and identity depends differently on the hippocampus and orbitofrontal cortex in rats.

Expectancy-related changes in firing of dopamine neurons depend on hippocampus

This study shows that hippocampal lesions affect dopamine neuron firing patterns during a reward prediction task, contrasting with the role of the orbitofrontal cortex.

Dopamine neuron ensembles signal the content of sensory prediction errors

The paper shows that groups of dopamine neurons in rats and human midbrain signal specific sensory prediction errors through ensemble firing patterns.