A decentralised neural model explaining optimal integration of navigational strategies in insects

Insect navigation arises from the coordinated action of concurrent guidance systems but the neural mechanisms through which each functions, and are then coordinated, remains unknown. We propose that insects require distinct strategies to retrace familiar routes (route-following) and directly return...

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Main Authors: Xuelong Sun, Shigang Yue, Michael Mangan
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2020-06-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/54026
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author Xuelong Sun
Shigang Yue
Michael Mangan
author_facet Xuelong Sun
Shigang Yue
Michael Mangan
author_sort Xuelong Sun
collection DOAJ
description Insect navigation arises from the coordinated action of concurrent guidance systems but the neural mechanisms through which each functions, and are then coordinated, remains unknown. We propose that insects require distinct strategies to retrace familiar routes (route-following) and directly return from novel to familiar terrain (homing) using different aspects of frequency encoded views that are processed in different neural pathways. We also demonstrate how the Central Complex and Mushroom Bodies regions of the insect brain may work in tandem to coordinate the directional output of different guidance cues through a contextually switched ring-attractor inspired by neural recordings. The resultant unified model of insect navigation reproduces behavioural data from a series of cue conflict experiments in realistic animal environments and offers testable hypotheses of where and how insects process visual cues, utilise the different information that they provide and coordinate their outputs to achieve the adaptive behaviours observed in the wild.
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spelling doaj.art-423c98f8ffe64025aea34fcf30aa7c162022-12-22T03:24:36ZengeLife Sciences Publications LtdeLife2050-084X2020-06-01910.7554/eLife.54026A decentralised neural model explaining optimal integration of navigational strategies in insectsXuelong Sun0https://orcid.org/0000-0001-9035-5523Shigang Yue1Michael Mangan2Computational Intelligence Lab & L-CAS, School of Computer Science, University of Lincoln, Lincoln, United KingdomComputational Intelligence Lab & L-CAS, School of Computer Science, University of Lincoln, Lincoln, United Kingdom; Machine Life and Intelligence Research Centre, Guangzhou University, Guangzhou, ChinaSheffield Robotics, Department of Computer Science, University of Sheffield, Sheffield, United KingdomInsect navigation arises from the coordinated action of concurrent guidance systems but the neural mechanisms through which each functions, and are then coordinated, remains unknown. We propose that insects require distinct strategies to retrace familiar routes (route-following) and directly return from novel to familiar terrain (homing) using different aspects of frequency encoded views that are processed in different neural pathways. We also demonstrate how the Central Complex and Mushroom Bodies regions of the insect brain may work in tandem to coordinate the directional output of different guidance cues through a contextually switched ring-attractor inspired by neural recordings. The resultant unified model of insect navigation reproduces behavioural data from a series of cue conflict experiments in realistic animal environments and offers testable hypotheses of where and how insects process visual cues, utilise the different information that they provide and coordinate their outputs to achieve the adaptive behaviours observed in the wild.https://elifesciences.org/articles/54026insect navigationcentral complexdesert antsoptimal integrationring attractormushroom body
spellingShingle Xuelong Sun
Shigang Yue
Michael Mangan
A decentralised neural model explaining optimal integration of navigational strategies in insects
eLife
insect navigation
central complex
desert ants
optimal integration
ring attractor
mushroom body
title A decentralised neural model explaining optimal integration of navigational strategies in insects
title_full A decentralised neural model explaining optimal integration of navigational strategies in insects
title_fullStr A decentralised neural model explaining optimal integration of navigational strategies in insects
title_full_unstemmed A decentralised neural model explaining optimal integration of navigational strategies in insects
title_short A decentralised neural model explaining optimal integration of navigational strategies in insects
title_sort decentralised neural model explaining optimal integration of navigational strategies in insects
topic insect navigation
central complex
desert ants
optimal integration
ring attractor
mushroom body
url https://elifesciences.org/articles/54026
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AT shigangyue adecentralisedneuralmodelexplainingoptimalintegrationofnavigationalstrategiesininsects
AT michaelmangan adecentralisedneuralmodelexplainingoptimalintegrationofnavigationalstrategiesininsects
AT xuelongsun decentralisedneuralmodelexplainingoptimalintegrationofnavigationalstrategiesininsects
AT shigangyue decentralisedneuralmodelexplainingoptimalintegrationofnavigationalstrategiesininsects
AT michaelmangan decentralisedneuralmodelexplainingoptimalintegrationofnavigationalstrategiesininsects