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The retrocalcarine sulcus maps different retinotopic representations in macaques and humans

Primate cerebral cortex is highly convoluted with much of the cortical surface buried in sulcal folds. The origins of cortical folding and its functional relevance have been a major focus of systems and cognitive neuroscience, especially when considering stereotyped patterns of cortical folding that...

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Autores principales: Arcaro, Michael J., Livingstone, Margaret S., Kay, Kendrick N., Weiner, Kevin S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9046316/
https://www.ncbi.nlm.nih.gov/pubmed/34921348
http://dx.doi.org/10.1007/s00429-021-02427-0
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author Arcaro, Michael J.
Livingstone, Margaret S.
Kay, Kendrick N.
Weiner, Kevin S.
author_facet Arcaro, Michael J.
Livingstone, Margaret S.
Kay, Kendrick N.
Weiner, Kevin S.
author_sort Arcaro, Michael J.
collection PubMed
description Primate cerebral cortex is highly convoluted with much of the cortical surface buried in sulcal folds. The origins of cortical folding and its functional relevance have been a major focus of systems and cognitive neuroscience, especially when considering stereotyped patterns of cortical folding that are shared across individuals within a primate species and across multiple species. However, foundational questions regarding organizing principles shared across species remain unanswered. Taking a cross-species comparative approach with a careful consideration of historical observations, we investigate cortical folding relative to primary visual cortex (area V1). We identify two macroanatomical structures—the retrocalcarine and external calcarine sulci—in 24 humans and 6 macaque monkeys. We show that within species, these sulci are identifiable in all individuals, fall on a similar part of the V1 retinotopic map, and thus, serve as anatomical landmarks predictive of functional organization. Yet, across species, the underlying eccentricity representations corresponding to these macroanatomical structures differ strikingly across humans and macaques. Thus, the correspondence between retinotopic representation and cortical folding for an evolutionarily old structure like V1 is species-specific and suggests potential differences in developmental and experiential constraints across primates. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00429-021-02427-0.
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spelling pubmed-90463162022-05-07 The retrocalcarine sulcus maps different retinotopic representations in macaques and humans Arcaro, Michael J. Livingstone, Margaret S. Kay, Kendrick N. Weiner, Kevin S. Brain Struct Funct Original Article Primate cerebral cortex is highly convoluted with much of the cortical surface buried in sulcal folds. The origins of cortical folding and its functional relevance have been a major focus of systems and cognitive neuroscience, especially when considering stereotyped patterns of cortical folding that are shared across individuals within a primate species and across multiple species. However, foundational questions regarding organizing principles shared across species remain unanswered. Taking a cross-species comparative approach with a careful consideration of historical observations, we investigate cortical folding relative to primary visual cortex (area V1). We identify two macroanatomical structures—the retrocalcarine and external calcarine sulci—in 24 humans and 6 macaque monkeys. We show that within species, these sulci are identifiable in all individuals, fall on a similar part of the V1 retinotopic map, and thus, serve as anatomical landmarks predictive of functional organization. Yet, across species, the underlying eccentricity representations corresponding to these macroanatomical structures differ strikingly across humans and macaques. Thus, the correspondence between retinotopic representation and cortical folding for an evolutionarily old structure like V1 is species-specific and suggests potential differences in developmental and experiential constraints across primates. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00429-021-02427-0. Springer Berlin Heidelberg 2021-12-17 2022 /pmc/articles/PMC9046316/ /pubmed/34921348 http://dx.doi.org/10.1007/s00429-021-02427-0 Text en © The Author(s) 2021, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Original Article
Arcaro, Michael J.
Livingstone, Margaret S.
Kay, Kendrick N.
Weiner, Kevin S.
The retrocalcarine sulcus maps different retinotopic representations in macaques and humans
title The retrocalcarine sulcus maps different retinotopic representations in macaques and humans
title_full The retrocalcarine sulcus maps different retinotopic representations in macaques and humans
title_fullStr The retrocalcarine sulcus maps different retinotopic representations in macaques and humans
title_full_unstemmed The retrocalcarine sulcus maps different retinotopic representations in macaques and humans
title_short The retrocalcarine sulcus maps different retinotopic representations in macaques and humans
title_sort retrocalcarine sulcus maps different retinotopic representations in macaques and humans
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9046316/
https://www.ncbi.nlm.nih.gov/pubmed/34921348
http://dx.doi.org/10.1007/s00429-021-02427-0
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