Dynamics Learning Rate Bias in Pigeons: Insights from Reinforcement Learning and Neural Correlates.

ABSTRACT: Research in reinforcement learning indicates that animals respond differently to positive and negative reward prediction errors, which can be calculated by assuming learning rate bias. Many studies have shown that humans and other animals have learning rate bias during learning, but it is unclear whether and how the bias changes throughout the entire learning process. Here, we recorded the behavior data and the local field potentials (LFPs) in the striatum of five pigeons performing a probabilistic learning task. Reinforcement learning models with and without learning rate biases were used to dynamically fit the pigeons' choice behavior and estimate the option values. Furthemore, the correlation between the striatal LFPs power and the model-estimated option values was explored. We found th

SUBMITTER: Jin F 

PROVIDER: S-EPMC10854969 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature