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The representation of colored objects in macaque color patches

An important question about color vision is how does the brain represent the color of an object? The recent discovery of “color patches” in macaque inferotemporal (IT) cortex, the part of the brain responsible for object recognition, makes this problem experimentally tractable. Here we recorded neur...

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Detalles Bibliográficos
Autores principales: Chang, Le, Bao, Pinglei, Tsao, Doris Y.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5727180/
https://www.ncbi.nlm.nih.gov/pubmed/29234028
http://dx.doi.org/10.1038/s41467-017-01912-7
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author Chang, Le
Bao, Pinglei
Tsao, Doris Y.
author_facet Chang, Le
Bao, Pinglei
Tsao, Doris Y.
author_sort Chang, Le
collection PubMed
description An important question about color vision is how does the brain represent the color of an object? The recent discovery of “color patches” in macaque inferotemporal (IT) cortex, the part of the brain responsible for object recognition, makes this problem experimentally tractable. Here we recorded neurons in three color patches, middle color patch CLC (central lateral color patch), and two anterior color patches ALC (anterior lateral color patch) and AMC (anterior medial color patch), while presenting images of objects systematically varied in hue. We found that all three patches contain high concentrations of hue-selective cells, and that the three patches use distinct computational strategies to represent colored objects: while all three patches multiplex hue and shape information, shape-invariant hue information is much stronger in anterior color patches ALC/AMC than CLC. Furthermore, hue and object shape specifically for primate faces/bodies are over-represented in AMC, but not in the other two patches.
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spelling pubmed-57271802017-12-14 The representation of colored objects in macaque color patches Chang, Le Bao, Pinglei Tsao, Doris Y. Nat Commun Article An important question about color vision is how does the brain represent the color of an object? The recent discovery of “color patches” in macaque inferotemporal (IT) cortex, the part of the brain responsible for object recognition, makes this problem experimentally tractable. Here we recorded neurons in three color patches, middle color patch CLC (central lateral color patch), and two anterior color patches ALC (anterior lateral color patch) and AMC (anterior medial color patch), while presenting images of objects systematically varied in hue. We found that all three patches contain high concentrations of hue-selective cells, and that the three patches use distinct computational strategies to represent colored objects: while all three patches multiplex hue and shape information, shape-invariant hue information is much stronger in anterior color patches ALC/AMC than CLC. Furthermore, hue and object shape specifically for primate faces/bodies are over-represented in AMC, but not in the other two patches. Nature Publishing Group UK 2017-12-12 /pmc/articles/PMC5727180/ /pubmed/29234028 http://dx.doi.org/10.1038/s41467-017-01912-7 Text en © The Author(s) 2017 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Chang, Le
Bao, Pinglei
Tsao, Doris Y.
The representation of colored objects in macaque color patches
title The representation of colored objects in macaque color patches
title_full The representation of colored objects in macaque color patches
title_fullStr The representation of colored objects in macaque color patches
title_full_unstemmed The representation of colored objects in macaque color patches
title_short The representation of colored objects in macaque color patches
title_sort representation of colored objects in macaque color patches
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5727180/
https://www.ncbi.nlm.nih.gov/pubmed/29234028
http://dx.doi.org/10.1038/s41467-017-01912-7
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