Vijay Mohan K Namboodiri

This study reveals spatially organized dopamine dynamics in the nucleus accumbens core of mice, showing distinct patterns in anterior and posterior regions that do not align with canonical reward prediction error models.

This paper shows that presenting outcomes without cues (retrospective extinction) can erase memories, unlike standard extinction protocols that present cues without outcomes.

The paper shows that the rate of behavioral and dopaminergic learning in mice is proportional to the reward interval, with a model explaining this relationship.

The paper investigates neuronal assembly sequences in the mouse orbitofrontal cortex during learning, finding pre-existing and emergent sequences involved in memory consolidation and retrieval.

This study shows that mesolimbic dopamine ramps occur only when inter-trial intervals are short relative to trial periods during conditioning.

This study shows that mesostriatal dopamine responses change when specific cue-reward contingencies are altered, suggesting dopamine encodes event relationships during learning.

The paper identifies indirect pathway-projecting spiny projection neurons as a driver of compulsive behavior in a mouse model and shows that reducing their activity alleviates compulsive grooming.

The paper identifies cortical neuron ensembles that couple differently to hippocampal SWRs in distinct subregions and proposes their role in cognitive map formation.

The paper shows that vmOFC neurons signal relative reward salience, influencing learning rate through thalamic inputs in mice.

The paper examines assumptions about state spaces in reinforcement learning models applied to animal behavior and proposes a continuous time Markov renewal process model to address limitations.

The paper identifies PnocBNST neurons in the BNST that encode rapid arousal responses to motivational stimuli and show distinct physiological and behavioral effects.

The paper identifies heterogeneous habenular neuronal clusters in mice that predict or reflect the selection of distinct defensive behaviors in response to visual threats.