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Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex
γ Band plays a key role in the encoding of visual features in the primary visual cortex (V1). In rodents V1 two ranges within the γ band are sensitive to contrast: a broad γ band (BB) increasing with contrast, and a narrow γ band (NB), peaking at ∼60 Hz, decreasing with contrast. The functional role...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Society for Neuroscience
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8570688/ https://www.ncbi.nlm.nih.gov/pubmed/34663617 http://dx.doi.org/10.1523/ENEURO.0106-21.2021 |
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author | Meneghetti, Nicolò Cerri, Chiara Tantillo, Elena Vannini, Eleonora Caleo, Matteo Mazzoni, Alberto |
author_facet | Meneghetti, Nicolò Cerri, Chiara Tantillo, Elena Vannini, Eleonora Caleo, Matteo Mazzoni, Alberto |
author_sort | Meneghetti, Nicolò |
collection | PubMed |
description | γ Band plays a key role in the encoding of visual features in the primary visual cortex (V1). In rodents V1 two ranges within the γ band are sensitive to contrast: a broad γ band (BB) increasing with contrast, and a narrow γ band (NB), peaking at ∼60 Hz, decreasing with contrast. The functional roles of the two bands and the neural circuits originating them are not completely clear yet. Here, we show, combining experimental and simulated data, that in mice V1 (1) BB carries information about high contrast and NB about low contrast; (2) BB modulation depends on excitatory-inhibitory interplay in the cortex, while NB modulation is because of entrainment to the thalamic drive. In awake mice presented with alternating gratings, NB power progressively decreased from low to intermediate levels of contrast where it reached a plateau. Conversely, BB power was constant across low levels of contrast, but it progressively increased from intermediate to high levels of contrast. Furthermore, BB response was stronger immediately after contrast reversal, while the opposite held for NB. These complementary modulations were reproduced by a recurrent excitatory-inhibitory leaky integrate-and-fire network provided that the thalamic inputs were composed of a sustained and a periodic component having complementary sensitivity ranges. These results show that in rodents the thalamic-driven NB plays a specific key role in encoding visual contrast. Moreover, we propose a simple and effective network model of response to visual stimuli in rodents that might help in investigating network dysfunctions of pathologic visual information processing. |
format | Online Article Text |
id | pubmed-8570688 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Society for Neuroscience |
record_format | MEDLINE/PubMed |
spelling | pubmed-85706882021-11-08 Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex Meneghetti, Nicolò Cerri, Chiara Tantillo, Elena Vannini, Eleonora Caleo, Matteo Mazzoni, Alberto eNeuro Research Article: New Research γ Band plays a key role in the encoding of visual features in the primary visual cortex (V1). In rodents V1 two ranges within the γ band are sensitive to contrast: a broad γ band (BB) increasing with contrast, and a narrow γ band (NB), peaking at ∼60 Hz, decreasing with contrast. The functional roles of the two bands and the neural circuits originating them are not completely clear yet. Here, we show, combining experimental and simulated data, that in mice V1 (1) BB carries information about high contrast and NB about low contrast; (2) BB modulation depends on excitatory-inhibitory interplay in the cortex, while NB modulation is because of entrainment to the thalamic drive. In awake mice presented with alternating gratings, NB power progressively decreased from low to intermediate levels of contrast where it reached a plateau. Conversely, BB power was constant across low levels of contrast, but it progressively increased from intermediate to high levels of contrast. Furthermore, BB response was stronger immediately after contrast reversal, while the opposite held for NB. These complementary modulations were reproduced by a recurrent excitatory-inhibitory leaky integrate-and-fire network provided that the thalamic inputs were composed of a sustained and a periodic component having complementary sensitivity ranges. These results show that in rodents the thalamic-driven NB plays a specific key role in encoding visual contrast. Moreover, we propose a simple and effective network model of response to visual stimuli in rodents that might help in investigating network dysfunctions of pathologic visual information processing. Society for Neuroscience 2021-11-02 /pmc/articles/PMC8570688/ /pubmed/34663617 http://dx.doi.org/10.1523/ENEURO.0106-21.2021 Text en Copyright © 2021 Meneghetti et al. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. |
spellingShingle | Research Article: New Research Meneghetti, Nicolò Cerri, Chiara Tantillo, Elena Vannini, Eleonora Caleo, Matteo Mazzoni, Alberto Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex |
title | Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex |
title_full | Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex |
title_fullStr | Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex |
title_full_unstemmed | Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex |
title_short | Narrow and Broad γ Bands Process Complementary Visual Information in Mouse Primary Visual Cortex |
title_sort | narrow and broad γ bands process complementary visual information in mouse primary visual cortex |
topic | Research Article: New Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8570688/ https://www.ncbi.nlm.nih.gov/pubmed/34663617 http://dx.doi.org/10.1523/ENEURO.0106-21.2021 |
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