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Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements

Animals routinely use autogenous movement to regulate the information encoded by their sensory systems. Weakly electric fish use fore–aft movements to regulate visual and electrosensory feedback as they maintain position within a moving refuge. During refuge tracking, fish produce two categories of...

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Autores principales: Uyanik, Ismail, Stamper, Sarah A., Cowan, Noah J., Fortune, Eric S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6463760/
https://www.ncbi.nlm.nih.gov/pubmed/31024269
http://dx.doi.org/10.3389/fnbeh.2019.00059
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author Uyanik, Ismail
Stamper, Sarah A.
Cowan, Noah J.
Fortune, Eric S.
author_facet Uyanik, Ismail
Stamper, Sarah A.
Cowan, Noah J.
Fortune, Eric S.
author_sort Uyanik, Ismail
collection PubMed
description Animals routinely use autogenous movement to regulate the information encoded by their sensory systems. Weakly electric fish use fore–aft movements to regulate visual and electrosensory feedback as they maintain position within a moving refuge. During refuge tracking, fish produce two categories of movements: smooth pursuit that is approximately linear in its relation to the movement of the refuge and ancillary active sensing movements that are nonlinear. We identified four categories of nonlinear movements which we termed scanning, wiggle, drift, and reset. To examine the relations between sensory cues and production of both linear smooth pursuit and nonlinear active sensing movements, we altered visual and electrosensory cues for refuge tracking and measured the fore–aft movements of the fish. Specifically, we altered the length and structure of the refuge and performed experiments with light and in complete darkness. Linear measures of tracking performance were better for shorter refuges (less than a body length) than longer ones (>1.5 body lengths). The magnitude of nonlinear active sensing movements was strongly modulated by light cues but also increased as a function of both longer refuge length and decreased features. Specifically, fish shifted swimming movements from smooth pursuit to scanning when tracking in dark conditions. Finally, fish appear to use nonlinear movements as an alternate tracking strategy in longer refuges: the fish may use more drifts and resets to avoid exiting the ends of the refuge.
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spelling pubmed-64637602019-04-25 Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements Uyanik, Ismail Stamper, Sarah A. Cowan, Noah J. Fortune, Eric S. Front Behav Neurosci Neuroscience Animals routinely use autogenous movement to regulate the information encoded by their sensory systems. Weakly electric fish use fore–aft movements to regulate visual and electrosensory feedback as they maintain position within a moving refuge. During refuge tracking, fish produce two categories of movements: smooth pursuit that is approximately linear in its relation to the movement of the refuge and ancillary active sensing movements that are nonlinear. We identified four categories of nonlinear movements which we termed scanning, wiggle, drift, and reset. To examine the relations between sensory cues and production of both linear smooth pursuit and nonlinear active sensing movements, we altered visual and electrosensory cues for refuge tracking and measured the fore–aft movements of the fish. Specifically, we altered the length and structure of the refuge and performed experiments with light and in complete darkness. Linear measures of tracking performance were better for shorter refuges (less than a body length) than longer ones (>1.5 body lengths). The magnitude of nonlinear active sensing movements was strongly modulated by light cues but also increased as a function of both longer refuge length and decreased features. Specifically, fish shifted swimming movements from smooth pursuit to scanning when tracking in dark conditions. Finally, fish appear to use nonlinear movements as an alternate tracking strategy in longer refuges: the fish may use more drifts and resets to avoid exiting the ends of the refuge. Frontiers Media S.A. 2019-04-08 /pmc/articles/PMC6463760/ /pubmed/31024269 http://dx.doi.org/10.3389/fnbeh.2019.00059 Text en Copyright © 2019 Uyanik, Stamper, Cowan and Fortune. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Uyanik, Ismail
Stamper, Sarah A.
Cowan, Noah J.
Fortune, Eric S.
Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements
title Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements
title_full Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements
title_fullStr Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements
title_full_unstemmed Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements
title_short Sensory Cues Modulate Smooth Pursuit and Active Sensing Movements
title_sort sensory cues modulate smooth pursuit and active sensing movements
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6463760/
https://www.ncbi.nlm.nih.gov/pubmed/31024269
http://dx.doi.org/10.3389/fnbeh.2019.00059
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