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Echo View Cells From Bio-Inspired Sonar

Place recognition is naturally informed by the mosaic of sensations we remember from previously visiting a location and general knowledge of our location in the world. Neurons in the mammalian brain (specifically in the hippocampus formation) named “place cells” are thought to reflect this recogniti...

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Autores principales: Isbell, Jacob D., Horiuchi, Timothy K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7674830/
https://www.ncbi.nlm.nih.gov/pubmed/33250733
http://dx.doi.org/10.3389/fnbot.2020.567991
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author Isbell, Jacob D.
Horiuchi, Timothy K.
author_facet Isbell, Jacob D.
Horiuchi, Timothy K.
author_sort Isbell, Jacob D.
collection PubMed
description Place recognition is naturally informed by the mosaic of sensations we remember from previously visiting a location and general knowledge of our location in the world. Neurons in the mammalian brain (specifically in the hippocampus formation) named “place cells” are thought to reflect this recognition of place and are involved in implementing a spatial map that can be used for path planning and memory recall. In this research, we use bat-inspired sonar to mimic how bats might sense objects in the environment and recognize the views associated with different places. These “echo view cells” may contribute (along with odometry) to the creation of place cell representations observed in bats. Although detailed sensory template matching is straightforward, it is quite unlikely that a flying animal or robot will return to the exact 3-D position and pose where the original memory was captured. Instead, we strive to recognize views over extended regions that are many body lengths in size, reducing the number of places to be remembered for a map. We have successfully demonstrated some of this spatial invariance by training feed-forward neural networks (traditional neural networks and spiking neural networks) to recognize 66 distinct places in a laboratory environment over a limited range of translations and rotations. We further show how the echo view cells respond between known views and how their outputs can be combined over time for continuity.
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spelling pubmed-76748302020-11-26 Echo View Cells From Bio-Inspired Sonar Isbell, Jacob D. Horiuchi, Timothy K. Front Neurorobot Neuroscience Place recognition is naturally informed by the mosaic of sensations we remember from previously visiting a location and general knowledge of our location in the world. Neurons in the mammalian brain (specifically in the hippocampus formation) named “place cells” are thought to reflect this recognition of place and are involved in implementing a spatial map that can be used for path planning and memory recall. In this research, we use bat-inspired sonar to mimic how bats might sense objects in the environment and recognize the views associated with different places. These “echo view cells” may contribute (along with odometry) to the creation of place cell representations observed in bats. Although detailed sensory template matching is straightforward, it is quite unlikely that a flying animal or robot will return to the exact 3-D position and pose where the original memory was captured. Instead, we strive to recognize views over extended regions that are many body lengths in size, reducing the number of places to be remembered for a map. We have successfully demonstrated some of this spatial invariance by training feed-forward neural networks (traditional neural networks and spiking neural networks) to recognize 66 distinct places in a laboratory environment over a limited range of translations and rotations. We further show how the echo view cells respond between known views and how their outputs can be combined over time for continuity. Frontiers Media S.A. 2020-11-05 /pmc/articles/PMC7674830/ /pubmed/33250733 http://dx.doi.org/10.3389/fnbot.2020.567991 Text en Copyright © 2020 Isbell and Horiuchi. 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
Isbell, Jacob D.
Horiuchi, Timothy K.
Echo View Cells From Bio-Inspired Sonar
title Echo View Cells From Bio-Inspired Sonar
title_full Echo View Cells From Bio-Inspired Sonar
title_fullStr Echo View Cells From Bio-Inspired Sonar
title_full_unstemmed Echo View Cells From Bio-Inspired Sonar
title_short Echo View Cells From Bio-Inspired Sonar
title_sort echo view cells from bio-inspired sonar
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7674830/
https://www.ncbi.nlm.nih.gov/pubmed/33250733
http://dx.doi.org/10.3389/fnbot.2020.567991
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