The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates.
Cetartiodactyls include terrestrial and marine species, all generally endowed with a comparatively lateral position of their eyes and a relatively limited binocular field of vision. To this day, our understanding of the visual system in mammals beyond the few studied animal models remains limited. I...
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2021
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ftlondsouthbanku:oai:openresearch.lsbu.ac.uk:8xy6w 2023-05-15T16:13:20+02:00 The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. Graïc, J. Peruffo, A. Corain, L. Finos, L. Grisan, E. Cozzi, B. 2021 application/pdf https://openresearch.lsbu.ac.uk/item/8xy6w https://openresearch.lsbu.ac.uk/download/2a29cc8c361d653c306325af9771f84c993e14a5cdee9ce43b5c90c323e4250f/13258315/Gra%C3%AFc2021_Article_ThePrimaryVisualCortexOfCetart.pdf https://doi.org/10.1007/s00429-021-02392-8 unknown Springer https://openresearch.lsbu.ac.uk/download/2a29cc8c361d653c306325af9771f84c993e14a5cdee9ce43b5c90c323e4250f/13258315/Gra%C3%AFc2021_Article_ThePrimaryVisualCortexOfCetart.pdf https://doi.org/10.1007/s00429-021-02392-8 Graïc, J., Peruffo, A., Corain, L., Finos, L., Grisan, E. and Cozzi, B. (2021). The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. Brain structure & function. 227, p. 1195–1225. https://doi.org/10.1007/s00429-021-02392-8 CC BY 4.0 CC-BY Cytoarchitecture Cetartiodactyls Lateralization Comparative neuroanatomy Visual cortex Lamination journal-article PeerReviewed 2021 ftlondsouthbanku https://doi.org/10.1007/s00429-021-02392-8 2022-08-25T22:28:38Z Cetartiodactyls include terrestrial and marine species, all generally endowed with a comparatively lateral position of their eyes and a relatively limited binocular field of vision. To this day, our understanding of the visual system in mammals beyond the few studied animal models remains limited. In the present study, we examined the primary visual cortex of Cetartiodactyls that live on land (sheep, Père David deer, giraffe); in the sea (bottlenose dolphin, Risso's dolphin, long-finned pilot whale, Cuvier's beaked whale, sperm whale and fin whale); or in an amphibious environment (hippopotamus). We also sampled and studied the visual cortex of the horse (a closely related perissodactyl) and two primates (chimpanzee and pig-tailed macaque) for comparison. Our histochemical and immunohistochemical results indicate that the visual cortex of Cetartiodactyls is characterized by a peculiar organization, structure, and complexity of the cortical column. We noted a general lesser lamination compared to simians, with diminished density, and an apparent simplification of the intra- and extra-columnar connections. The presence and distribution of calcium-binding proteins indicated a notable absence of parvalbumin in water species and a strong reduction of layer 4, usually enlarged in the striated cortex, seemingly replaced by a more diffuse distribution in neighboring layers. Consequently, thalamo-cortical inputs are apparently directed to the higher layers of the column. Computer analyses and statistical evaluation of the data confirmed the results and indicated a substantial correlation between eye placement and cortical structure, with a markedly segregated pattern in cetaceans compared to other mammals. Furthermore, cetacean species showed several types of cortical lamination which may reflect differences in function, possibly related to depth of foraging and consequent progressive disappearance of light, and increased importance of echolocation. [Abstract copyright: © 2021. The Author(s).] Text Fin whale Sperm whale LSBU Research Open (London South Bank University) Brain Structure and Function |
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LSBU Research Open (London South Bank University) |
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ftlondsouthbanku |
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unknown |
topic |
Cytoarchitecture Cetartiodactyls Lateralization Comparative neuroanatomy Visual cortex Lamination |
spellingShingle |
Cytoarchitecture Cetartiodactyls Lateralization Comparative neuroanatomy Visual cortex Lamination Graïc, J. Peruffo, A. Corain, L. Finos, L. Grisan, E. Cozzi, B. The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. |
topic_facet |
Cytoarchitecture Cetartiodactyls Lateralization Comparative neuroanatomy Visual cortex Lamination |
description |
Cetartiodactyls include terrestrial and marine species, all generally endowed with a comparatively lateral position of their eyes and a relatively limited binocular field of vision. To this day, our understanding of the visual system in mammals beyond the few studied animal models remains limited. In the present study, we examined the primary visual cortex of Cetartiodactyls that live on land (sheep, Père David deer, giraffe); in the sea (bottlenose dolphin, Risso's dolphin, long-finned pilot whale, Cuvier's beaked whale, sperm whale and fin whale); or in an amphibious environment (hippopotamus). We also sampled and studied the visual cortex of the horse (a closely related perissodactyl) and two primates (chimpanzee and pig-tailed macaque) for comparison. Our histochemical and immunohistochemical results indicate that the visual cortex of Cetartiodactyls is characterized by a peculiar organization, structure, and complexity of the cortical column. We noted a general lesser lamination compared to simians, with diminished density, and an apparent simplification of the intra- and extra-columnar connections. The presence and distribution of calcium-binding proteins indicated a notable absence of parvalbumin in water species and a strong reduction of layer 4, usually enlarged in the striated cortex, seemingly replaced by a more diffuse distribution in neighboring layers. Consequently, thalamo-cortical inputs are apparently directed to the higher layers of the column. Computer analyses and statistical evaluation of the data confirmed the results and indicated a substantial correlation between eye placement and cortical structure, with a markedly segregated pattern in cetaceans compared to other mammals. Furthermore, cetacean species showed several types of cortical lamination which may reflect differences in function, possibly related to depth of foraging and consequent progressive disappearance of light, and increased importance of echolocation. [Abstract copyright: © 2021. The Author(s).] |
format |
Text |
author |
Graïc, J. Peruffo, A. Corain, L. Finos, L. Grisan, E. Cozzi, B. |
author_facet |
Graïc, J. Peruffo, A. Corain, L. Finos, L. Grisan, E. Cozzi, B. |
author_sort |
Graïc, J. |
title |
The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. |
title_short |
The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. |
title_full |
The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. |
title_fullStr |
The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. |
title_full_unstemmed |
The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. |
title_sort |
primary visual cortex of cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. |
publisher |
Springer |
publishDate |
2021 |
url |
https://openresearch.lsbu.ac.uk/item/8xy6w https://openresearch.lsbu.ac.uk/download/2a29cc8c361d653c306325af9771f84c993e14a5cdee9ce43b5c90c323e4250f/13258315/Gra%C3%AFc2021_Article_ThePrimaryVisualCortexOfCetart.pdf https://doi.org/10.1007/s00429-021-02392-8 |
genre |
Fin whale Sperm whale |
genre_facet |
Fin whale Sperm whale |
op_relation |
https://openresearch.lsbu.ac.uk/download/2a29cc8c361d653c306325af9771f84c993e14a5cdee9ce43b5c90c323e4250f/13258315/Gra%C3%AFc2021_Article_ThePrimaryVisualCortexOfCetart.pdf https://doi.org/10.1007/s00429-021-02392-8 Graïc, J., Peruffo, A., Corain, L., Finos, L., Grisan, E. and Cozzi, B. (2021). The primary visual cortex of Cetartiodactyls: organization, cytoarchitectonics and comparison with perissodactyls and primates. Brain structure & function. 227, p. 1195–1225. https://doi.org/10.1007/s00429-021-02392-8 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00429-021-02392-8 |
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Brain Structure and Function |
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