A. G. E. Collins

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.

Nucleus accumbens dopamine release reflects Bayesian inference during instrumental learning

The paper shows that dopamine release in the nucleus accumbens during instrumental learning reflects Bayesian inference of probabilistic beliefs about hidden environmental states.

Artificial neural networks for model identification and parameter estimation in computational cognitive models

This paper uses artificial neural networks to estimate parameters and identify cognitive models without likelihood computation, demonstrating effectiveness for models with inter-trial dependencies.

Age-related differences in prefrontal glutamate are associated with increased working memory decay that gives the appearance of learning deficits

This study links age-related prefrontal glutamate levels to working memory deficits and decision-making impairments in older adults.

Plucking a string or playing a G? Choice type impacts human reinforcement learning

This study shows that human reinforcement learning is slower and less accurate for general choice types compared to concrete motor actions, due to credit assignment interference and slower information integration.