Predictive coding of the statistical parameters of uncertain rewards by orbitofrontal neurons.
Behavioural brain research
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O'Neill, M., & Schultz, W. (2018). Predictive coding of the statistical parameters of uncertain rewards by orbitofrontal neurons.. Behavioural brain research, 355 90-94. https://doi.org/10.1016/j.bbr.2018.04.041
Uncertain reward outcomes are characterised by statistical parameters that capture the numerical values of the underlying probability distributions of reward values, including the expected value, risk (variance) and probability. Here we show coding of an integrated expected value signal by single orbitofrontal neurons in response to visual cues predicting uncertain rewards. Separate subpopulations of orbitofrontal neurons predominantly code the prediction of one statistical parameter with few neurons showing combined coding. These signals are likely combined with subjective value signals to inform learning and decision making under conditions of uncertainty.
Prefrontal Cortex, Neurons, Animals, Macaca mulatta, Models, Statistical, Uncertainty, Cues, Reward, Visual Perception, Saccades, Male, Anticipation, Psychological
This work was supported by the Wellcome Trust, the European Research Council, the Behavioural and Clinical Neuroscience Institute Cambridge, and the Human Frontier Science Program.
MEDICAL RESEARCH COUNCIL (G0001354)
External DOI: https://doi.org/10.1016/j.bbr.2018.04.041
This record's URL: https://www.repository.cam.ac.uk/handle/1810/275565