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Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition

Navigational mechanisms have been characterized as servomechanisms. A navigational servomechanism specifies a goal state to strive for. Discrepancies between the perceived current state and the goal state specify error. Servomechanisms adjust the course of travel to reduce the error. I now add that...

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Detalles Bibliográficos
Autor principal: Cheng, Ken
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9091845/
https://www.ncbi.nlm.nih.gov/pubmed/35538783
http://dx.doi.org/10.1098/rspb.2022.0237
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author Cheng, Ken
author_facet Cheng, Ken
author_sort Cheng, Ken
collection PubMed
description Navigational mechanisms have been characterized as servomechanisms. A navigational servomechanism specifies a goal state to strive for. Discrepancies between the perceived current state and the goal state specify error. Servomechanisms adjust the course of travel to reduce the error. I now add that navigational servomechanisms work with oscillators, periodic movements of effectors that drive locomotion. I illustrate this concept selectively over a vast range of scales of travel from micrometres in bacteria to thousands of kilometres in sea turtles. The servomechanisms differ in sophistication, with some interrupting forward motion occasionally or changing travel speed in kineses and others adjusting the direction of travel in taxes. I suggest that in other realms of life as well, especially in cognition, servomechanisms work with oscillators.
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spelling pubmed-90918452022-05-14 Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition Cheng, Ken Proc Biol Sci Review Articles Navigational mechanisms have been characterized as servomechanisms. A navigational servomechanism specifies a goal state to strive for. Discrepancies between the perceived current state and the goal state specify error. Servomechanisms adjust the course of travel to reduce the error. I now add that navigational servomechanisms work with oscillators, periodic movements of effectors that drive locomotion. I illustrate this concept selectively over a vast range of scales of travel from micrometres in bacteria to thousands of kilometres in sea turtles. The servomechanisms differ in sophistication, with some interrupting forward motion occasionally or changing travel speed in kineses and others adjusting the direction of travel in taxes. I suggest that in other realms of life as well, especially in cognition, servomechanisms work with oscillators. The Royal Society 2022-05-11 2022-05-11 /pmc/articles/PMC9091845/ /pubmed/35538783 http://dx.doi.org/10.1098/rspb.2022.0237 Text en © 2022 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.
spellingShingle Review Articles
Cheng, Ken
Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition
title Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition
title_full Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition
title_fullStr Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition
title_full_unstemmed Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition
title_short Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition
title_sort oscillators and servomechanisms in orientation and navigation, and sometimes in cognition
topic Review Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9091845/
https://www.ncbi.nlm.nih.gov/pubmed/35538783
http://dx.doi.org/10.1098/rspb.2022.0237
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