How the evolution of air breathing shaped hippocampal function
To make maps from airborne odours requires dynamic respiratory patterns. I propose that this constraint explains the modulation of memory by nasal respiration in mammals, including murine rodents (e.g. laboratory mouse, laboratory rat) and humans. My prior theories of limbic system evolution offer a...
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ftpubmed:oai:pubmedcentral.nih.gov:8710879 2023-05-15T18:33:31+02:00 How the evolution of air breathing shaped hippocampal function Jacobs, Lucia F. 2022-02-14 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8710879/ http://www.ncbi.nlm.nih.gov/pubmed/34957846 https://doi.org/10.1098/rstb.2020.0532 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8710879/ http://www.ncbi.nlm.nih.gov/pubmed/34957846 http://dx.doi.org/10.1098/rstb.2020.0532 © 2021 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. CC-BY Philos Trans R Soc Lond B Biol Sci Articles Text 2022 ftpubmed https://doi.org/10.1098/rstb.2020.0532 2022-01-23T01:26:46Z To make maps from airborne odours requires dynamic respiratory patterns. I propose that this constraint explains the modulation of memory by nasal respiration in mammals, including murine rodents (e.g. laboratory mouse, laboratory rat) and humans. My prior theories of limbic system evolution offer a framework to understand why this occurs. The answer begins with the evolution of nasal respiration in Devonian lobe-finned fishes. This evolutionary innovation led to adaptive radiations in chemosensory systems, including the emergence of the vomeronasal system and a specialization of the main olfactory system for spatial orientation. As mammals continued to radiate into environments hostile to spatial olfaction (air, water), there was a loss of hippocampal structure and function in lineages that evolved sensory modalities adapted to these new environments. Hence the independent evolution of echolocation in bats and toothed whales was accompanied by a loss of hippocampal structure (whales) and an absence of hippocampal theta oscillations during navigation (bats). In conclusion, models of hippocampal function that are divorced from considerations of ecology and evolution fall short of explaining hippocampal diversity across mammals and even hippocampal function in humans. This article is part of the theme issue ‘Systems neuroscience through the lens of evolutionary theory’. Text toothed whales PubMed Central (PMC) Philosophical Transactions of the Royal Society B: Biological Sciences 377 1844 |
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Articles Jacobs, Lucia F. How the evolution of air breathing shaped hippocampal function |
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To make maps from airborne odours requires dynamic respiratory patterns. I propose that this constraint explains the modulation of memory by nasal respiration in mammals, including murine rodents (e.g. laboratory mouse, laboratory rat) and humans. My prior theories of limbic system evolution offer a framework to understand why this occurs. The answer begins with the evolution of nasal respiration in Devonian lobe-finned fishes. This evolutionary innovation led to adaptive radiations in chemosensory systems, including the emergence of the vomeronasal system and a specialization of the main olfactory system for spatial orientation. As mammals continued to radiate into environments hostile to spatial olfaction (air, water), there was a loss of hippocampal structure and function in lineages that evolved sensory modalities adapted to these new environments. Hence the independent evolution of echolocation in bats and toothed whales was accompanied by a loss of hippocampal structure (whales) and an absence of hippocampal theta oscillations during navigation (bats). In conclusion, models of hippocampal function that are divorced from considerations of ecology and evolution fall short of explaining hippocampal diversity across mammals and even hippocampal function in humans. This article is part of the theme issue ‘Systems neuroscience through the lens of evolutionary theory’. |
format |
Text |
author |
Jacobs, Lucia F. |
author_facet |
Jacobs, Lucia F. |
author_sort |
Jacobs, Lucia F. |
title |
How the evolution of air breathing shaped hippocampal function |
title_short |
How the evolution of air breathing shaped hippocampal function |
title_full |
How the evolution of air breathing shaped hippocampal function |
title_fullStr |
How the evolution of air breathing shaped hippocampal function |
title_full_unstemmed |
How the evolution of air breathing shaped hippocampal function |
title_sort |
how the evolution of air breathing shaped hippocampal function |
publisher |
The Royal Society |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8710879/ http://www.ncbi.nlm.nih.gov/pubmed/34957846 https://doi.org/10.1098/rstb.2020.0532 |
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toothed whales |
genre_facet |
toothed whales |
op_source |
Philos Trans R Soc Lond B Biol Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8710879/ http://www.ncbi.nlm.nih.gov/pubmed/34957846 http://dx.doi.org/10.1098/rstb.2020.0532 |
op_rights |
© 2021 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
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CC-BY |
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https://doi.org/10.1098/rstb.2020.0532 |
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Philosophical Transactions of the Royal Society B: Biological Sciences |
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377 |
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1844 |
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