A strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.

A fundamental challenge for the theoretical study of neuronal networks is to make the link between complex biophysical models based directly on experimental data, to progressively simpler mathematical models that allow the derivation of general operating principles. We present a strategy that succes...

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Autores principales: Anton V Chizhov, Lyle J Graham
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Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/6de62923867745a2bb58d2c5763d70b6
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spelling oai:doaj.org-article:6de62923867745a2bb58d2c5763d70b62021-12-02T19:58:04ZA strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.1553-734X1553-735810.1371/journal.pcbi.1009007https://doaj.org/article/6de62923867745a2bb58d2c5763d70b62021-08-01T00:00:00Zhttps://doi.org/10.1371/journal.pcbi.1009007https://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358A fundamental challenge for the theoretical study of neuronal networks is to make the link between complex biophysical models based directly on experimental data, to progressively simpler mathematical models that allow the derivation of general operating principles. We present a strategy that successively maps a relatively detailed biophysical population model, comprising conductance-based Hodgkin-Huxley type neuron models with connectivity rules derived from anatomical data, to various representations with fewer parameters, finishing with a firing rate network model that permits analysis. We apply this methodology to primary visual cortex of higher mammals, focusing on the functional property of stimulus orientation selectivity of receptive fields of individual neurons. The mapping produces compact expressions for the parameters of the abstract model that clearly identify the impact of specific electrophysiological and anatomical parameters on the analytical results, in particular as manifested by specific functional signatures of visual cortex, including input-output sharpening, conductance invariance, virtual rotation and the tilt after effect. Importantly, qualitative differences between model behaviours point out consequences of various simplifications. The strategy may be applied to other neuronal systems with appropriate modifications.Anton V ChizhovLyle J GrahamPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 17, Iss 8, p e1009007 (2021)
institution DOAJ
collection DOAJ
language EN
topic Biology (General)
QH301-705.5
spellingShingle Biology (General)
QH301-705.5
Anton V Chizhov
Lyle J Graham
A strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.
description A fundamental challenge for the theoretical study of neuronal networks is to make the link between complex biophysical models based directly on experimental data, to progressively simpler mathematical models that allow the derivation of general operating principles. We present a strategy that successively maps a relatively detailed biophysical population model, comprising conductance-based Hodgkin-Huxley type neuron models with connectivity rules derived from anatomical data, to various representations with fewer parameters, finishing with a firing rate network model that permits analysis. We apply this methodology to primary visual cortex of higher mammals, focusing on the functional property of stimulus orientation selectivity of receptive fields of individual neurons. The mapping produces compact expressions for the parameters of the abstract model that clearly identify the impact of specific electrophysiological and anatomical parameters on the analytical results, in particular as manifested by specific functional signatures of visual cortex, including input-output sharpening, conductance invariance, virtual rotation and the tilt after effect. Importantly, qualitative differences between model behaviours point out consequences of various simplifications. The strategy may be applied to other neuronal systems with appropriate modifications.
format article
author Anton V Chizhov
Lyle J Graham
author_facet Anton V Chizhov
Lyle J Graham
author_sort Anton V Chizhov
title A strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.
title_short A strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.
title_full A strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.
title_fullStr A strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.
title_full_unstemmed A strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.
title_sort strategy for mapping biophysical to abstract neuronal network models applied to primary visual cortex.
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/6de62923867745a2bb58d2c5763d70b6
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