Hanqing Wang

Universal Geometry of Compositional Construction in Prefrontal Cortex

This study shows rats use hierarchical composition to construct adaptive action sequences in an open-ended setting, with prefrontal neural representations following a universal geometric format.

Cognitive Graphs of Latent Structure in Rostral Anterior Cingulate Cortex

The paper describes a structured neural representation in rat prefrontal cortex that forms cognitive graphs for abstract state sequences during unguided exploration.

The Neural Basis of Delayed Gratification

This study trains mice to perform a delayed gratification task and shows that VTA dopamine neuron activity increases during waiting, with reinforcement learning modeling supporting the role of sustained dopaminergic signals in delaying gratification.