Single-cell and population coding of expected reward probability in the orbitofrontal cortex of the rat

Autor: Matthijs G. P. Feenstra, Jan Lankelma, E. van Duuren, Cyriel M. A. Pennartz, Ruud N. J. M. A. Joosten, G. van der Plasse
Přispěvatelé: Cognitive and Systems Neuroscience (SILS, FNWI), Netherlands Institute for Neuroscience (NIN), Anatomy and neurosciences, Medical oncology, NCA - Neurodegeneration, Neuroscience Campus Amsterdam - Neurodegeneration
Rok vydání: 2009
Předmět:
Zdroj: The Journal of Neuroscience, 29(28), 8965-8976. Society for Neuroscience
van Duuren, E, van der Plasse, G, Lankelma, J, Joosten, R N J M, Feenstra, M G P & Pennartz, C M A 2009, ' Single-Cell and Population Coding of Expected Reward Probability in the Orbitofrontal Cortex of the Rat ', Journal of Neuroscience, vol. 29, no. 28, pp. 8965-8976 . https://doi.org/10.1523/JNEUROSCI.0005-09.2009
Journal of Neuroscience, 29, 8965-8976. Society for Neuroscience
Journal of Neuroscience, 29(28), 8965-8976. Society for Neuroscience
van Duuren, E, van der Plasse, G, Lankelma, J, Joosten, R N J M, Feenstra, M G P & Pennartz, C M A 2009, ' Single-Cell and Population Coding of Expected Reward Probability in the Orbitofrontal Cortex of the Rat ', The Journal of Neuroscience, vol. 29, no. 28, pp. 8965-8976 . https://doi.org/10.1523/JNEUROSCI.0005-09.2009
ISSN: 0270-6474
DOI: 10.1523/JNEUROSCI.0005-09.2009
Popis: The orbitofrontal cortex (OFC) has been implicated in decision-making under uncertainty, but it is unknown how information about the probability or uncertainty of future reward is coded by single orbitofrontal neurons and ensembles. We recorded neuronal ensembles in ratOFCduring an olfactory discrimination task in which different odor stimuli predicted different reward probabilities. Single-unit firing patterns correlated to the expected reward probability primarily within an immobile waiting period before reward delivery but also when the rat executed movements toward the reward site. During these pre-reward periods, a subset ofOFCneurons was sensitive to differences in probability but only very rarely discriminated on the basis of reward uncertainty. In the reward period, neurons responded during presentation or omission of reward or during both types of outcome. At the population level, neurons were characterized by a wide divergence in firing-rate variability attributable to expected probability. A population analysis using template matching as reconstruction method indicated that OFC generates a distributed representation of reward probability with a weak dependence on neuronal group size. The analysis furthermore confirmed that predictive information coded by OFC populations was quantitatively related to reward probability, but not to uncertainty. Copyright © 2009 Society for Neuroscience.
Databáze: OpenAIRE