M. J. Frank

Striatal Dopamine Can Enhance Learning, Both Fast and Slow, and Also Make it Cheaper

This study shows dopamine enhances both reinforcement learning and working memory, reduces effort costs, and highlights the need to account for its effects on working memory when studying reinforcement learning.

Hierarchical clustering optimizes the tradeoff between compositionality and expressivity of task structures for flexible reinforcement learning

This paper introduces a hierarchical reinforcement learning agent that balances compositionality and expressivity in task structures for better generalization and transfer.

Reward-predictive representations generalize across tasks in reinforcement learning

This paper shows that reward-predictive representations in reinforcement learning generalize across tasks with different reward and transition functions.