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Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays

The head direction cell system is capable of accurately updating its current representation of head direction in the absence of visual input. This is known as the path integration of head direction. An important question is how the head direction cell system learns to perform accurate path integrati...

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Detalles Bibliográficos
Autores principales: Walters, Daniel, Stringer, Simon, Rolls, Edmund
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3602583/
https://www.ncbi.nlm.nih.gov/pubmed/23526976
http://dx.doi.org/10.1371/journal.pone.0058330
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author Walters, Daniel
Stringer, Simon
Rolls, Edmund
author_facet Walters, Daniel
Stringer, Simon
Rolls, Edmund
author_sort Walters, Daniel
collection PubMed
description The head direction cell system is capable of accurately updating its current representation of head direction in the absence of visual input. This is known as the path integration of head direction. An important question is how the head direction cell system learns to perform accurate path integration of head direction. In this paper we propose a model of velocity path integration of head direction in which the natural time delay of axonal transmission between a linked continuous attractor network and competitive network acts as a timing mechanism to facilitate the correct speed of path integration. The model effectively learns a “look-up” table for the correct speed of path integration. In simulation, we show that the model is able to successfully learn two different speeds of path integration across two different axonal conduction delays, and without the need to alter any other model parameters. An implication of this model is that, by learning look-up tables for each speed of path integration, the model should exhibit a degree of robustness to damage. In simulations, we show that the speed of path integration is not significantly affected by degrading the network through removing a proportion of the cells that signal rotational velocity.
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spelling pubmed-36025832013-03-22 Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays Walters, Daniel Stringer, Simon Rolls, Edmund PLoS One Research Article The head direction cell system is capable of accurately updating its current representation of head direction in the absence of visual input. This is known as the path integration of head direction. An important question is how the head direction cell system learns to perform accurate path integration of head direction. In this paper we propose a model of velocity path integration of head direction in which the natural time delay of axonal transmission between a linked continuous attractor network and competitive network acts as a timing mechanism to facilitate the correct speed of path integration. The model effectively learns a “look-up” table for the correct speed of path integration. In simulation, we show that the model is able to successfully learn two different speeds of path integration across two different axonal conduction delays, and without the need to alter any other model parameters. An implication of this model is that, by learning look-up tables for each speed of path integration, the model should exhibit a degree of robustness to damage. In simulations, we show that the speed of path integration is not significantly affected by degrading the network through removing a proportion of the cells that signal rotational velocity. Public Library of Science 2013-03-19 /pmc/articles/PMC3602583/ /pubmed/23526976 http://dx.doi.org/10.1371/journal.pone.0058330 Text en © 2013 Walters et al
spellingShingle Research Article
Walters, Daniel
Stringer, Simon
Rolls, Edmund
Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays
title Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays
title_full Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays
title_fullStr Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays
title_full_unstemmed Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays
title_short Path Integration of Head Direction: Updating a Packet of Neural Activity at the Correct Speed Using Axonal Conduction Delays
title_sort path integration of head direction: updating a packet of neural activity at the correct speed using axonal conduction delays
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3602583/
https://www.ncbi.nlm.nih.gov/pubmed/23526976
http://dx.doi.org/10.1371/journal.pone.0058330
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