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The Anterior Cingulate Cortex Predicts Future States to Mediate Model-Based Action Selection

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Dayan,  P
Department of Computational Neuroscience, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Akam, T., Rodrigues-Vaz, I., Marcelo, I., Zhang, X., Pereira, M., Freire Oliveira, R., et al. (2021). The Anterior Cingulate Cortex Predicts Future States to Mediate Model-Based Action Selection. Neuron, 109(1), 149-163. doi:10.1016/j.neuron.2020.10.013.


Cite as: http://hdl.handle.net/21.11116/0000-0007-5EA6-5
Abstract
Behavioral control is not unitary. It comprises parallel systems, model based and model free, that respectively generate flexible and habitual behaviors. Model-based decisions use predictions of the specific consequences of actions, but how these are implemented in the brain is poorly understood. We used calcium imaging and optogenetics in a sequential decision task for mice to show that the anterior cingulate cortex (ACC) predicts the state that actions will lead to, not simply whether they are good or bad, and monitors whether outcomes match these predictions. ACC represents the complete state space of the task, with reward signals that depend strongly on the state where reward is obtained but minimally on the preceding choice. Accordingly, ACC is necessary only for updating model-based strategies, not for basic reward-driven action reinforcement. These results reveal that ACC is a critical node in model-based control, with a specific role in predicting future states given chosen actions.