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Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging

To maximise long-term reward rates, foragers deciding when to leave a patch must compute a decision variable that reflects both the immediately available reward and the time costs associated with travelling to the next patch. Identifying the mechanisms that mediate this computation is central to und...

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Autores principales: Ramakrishnan, Arjun, Hayden, Benjamin Y., Platt, Michael L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7058217/
https://www.ncbi.nlm.nih.gov/pubmed/32166176
http://dx.doi.org/10.1177/2398212818817932
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author Ramakrishnan, Arjun
Hayden, Benjamin Y.
Platt, Michael L.
author_facet Ramakrishnan, Arjun
Hayden, Benjamin Y.
Platt, Michael L.
author_sort Ramakrishnan, Arjun
collection PubMed
description To maximise long-term reward rates, foragers deciding when to leave a patch must compute a decision variable that reflects both the immediately available reward and the time costs associated with travelling to the next patch. Identifying the mechanisms that mediate this computation is central to understanding how brains implement foraging decisions. We previously showed that firing rates of dorsal anterior cingulate sulcus neurons incorporate both variables. This result does not provide information about whether integration of information reflected in dorsal anterior cingulate sulcus spiking activity arises locally or whether it is inherited from upstream structures. Here, we examined local field potentials gathered simultaneously with our earlier recordings. In the majority of recording sites, local field potential spectral bands – specifically theta, beta, and gamma frequency ranges – encoded immediately available rewards but not time costs. The disjunction between information contained in spiking and local field potentials can constrain models of foraging-related processing. In particular, given the proposed link between local field potentials and inputs to a brain area, it raises the possibility that local processing within dorsal anterior cingulate sulcus serves to more fully bind immediate reward and time costs into a single decision variable.
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spelling pubmed-70582172020-03-12 Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging Ramakrishnan, Arjun Hayden, Benjamin Y. Platt, Michael L. Brain Neurosci Adv Special collection on Prefrontal Cortex To maximise long-term reward rates, foragers deciding when to leave a patch must compute a decision variable that reflects both the immediately available reward and the time costs associated with travelling to the next patch. Identifying the mechanisms that mediate this computation is central to understanding how brains implement foraging decisions. We previously showed that firing rates of dorsal anterior cingulate sulcus neurons incorporate both variables. This result does not provide information about whether integration of information reflected in dorsal anterior cingulate sulcus spiking activity arises locally or whether it is inherited from upstream structures. Here, we examined local field potentials gathered simultaneously with our earlier recordings. In the majority of recording sites, local field potential spectral bands – specifically theta, beta, and gamma frequency ranges – encoded immediately available rewards but not time costs. The disjunction between information contained in spiking and local field potentials can constrain models of foraging-related processing. In particular, given the proposed link between local field potentials and inputs to a brain area, it raises the possibility that local processing within dorsal anterior cingulate sulcus serves to more fully bind immediate reward and time costs into a single decision variable. SAGE Publications 2019-01-18 /pmc/articles/PMC7058217/ /pubmed/32166176 http://dx.doi.org/10.1177/2398212818817932 Text en © The Author(s) 2019 http://www.creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Special collection on Prefrontal Cortex
Ramakrishnan, Arjun
Hayden, Benjamin Y.
Platt, Michael L.
Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
title Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
title_full Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
title_fullStr Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
title_full_unstemmed Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
title_short Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
title_sort local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
topic Special collection on Prefrontal Cortex
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7058217/
https://www.ncbi.nlm.nih.gov/pubmed/32166176
http://dx.doi.org/10.1177/2398212818817932
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