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Spatial uncertainty and environmental geometry in navigation
Variations in the geometry of the environment, such as the shape and size of an enclosure, have profound effects on navigational behavior and its neural underpinning. Here, we show that these effects arise as a consequence of a single, unifying principle: to navigate efficiently, the brain must main...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Cold Spring Harbor Laboratory
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9915518/ https://www.ncbi.nlm.nih.gov/pubmed/36778354 http://dx.doi.org/10.1101/2023.01.30.526278 |
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author | Kang, Yul HR Wolpert, Daniel M Lengyel, Máté |
author_facet | Kang, Yul HR Wolpert, Daniel M Lengyel, Máté |
author_sort | Kang, Yul HR |
collection | PubMed |
description | Variations in the geometry of the environment, such as the shape and size of an enclosure, have profound effects on navigational behavior and its neural underpinning. Here, we show that these effects arise as a consequence of a single, unifying principle: to navigate efficiently, the brain must maintain and update the uncertainty about one’s location. We developed an image-computable Bayesian ideal observer model of navigation, continually combining noisy visual and self-motion inputs, and a neural encoding model optimized to represent the location uncertainty computed by the ideal observer. Through mathematical analysis and numerical simulations, we show that the ideal observer accounts for a diverse range of sometimes paradoxical distortions of human homing behavior in anisotropic and deformed environments, including ‘boundary tethering’, and its neural encoding accounts for distortions of rodent grid cell responses under identical environmental manipulations. Our results demonstrate that spatial uncertainty plays a key role in navigation. |
format | Online Article Text |
id | pubmed-9915518 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Cold Spring Harbor Laboratory |
record_format | MEDLINE/PubMed |
spelling | pubmed-99155182023-02-11 Spatial uncertainty and environmental geometry in navigation Kang, Yul HR Wolpert, Daniel M Lengyel, Máté bioRxiv Article Variations in the geometry of the environment, such as the shape and size of an enclosure, have profound effects on navigational behavior and its neural underpinning. Here, we show that these effects arise as a consequence of a single, unifying principle: to navigate efficiently, the brain must maintain and update the uncertainty about one’s location. We developed an image-computable Bayesian ideal observer model of navigation, continually combining noisy visual and self-motion inputs, and a neural encoding model optimized to represent the location uncertainty computed by the ideal observer. Through mathematical analysis and numerical simulations, we show that the ideal observer accounts for a diverse range of sometimes paradoxical distortions of human homing behavior in anisotropic and deformed environments, including ‘boundary tethering’, and its neural encoding accounts for distortions of rodent grid cell responses under identical environmental manipulations. Our results demonstrate that spatial uncertainty plays a key role in navigation. Cold Spring Harbor Laboratory 2023-02-01 /pmc/articles/PMC9915518/ /pubmed/36778354 http://dx.doi.org/10.1101/2023.01.30.526278 Text en https://creativecommons.org/licenses/by/4.0/This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/) , which allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as attribution is given to the creator. The license allows for commercial use. |
spellingShingle | Article Kang, Yul HR Wolpert, Daniel M Lengyel, Máté Spatial uncertainty and environmental geometry in navigation |
title | Spatial uncertainty and environmental geometry in navigation |
title_full | Spatial uncertainty and environmental geometry in navigation |
title_fullStr | Spatial uncertainty and environmental geometry in navigation |
title_full_unstemmed | Spatial uncertainty and environmental geometry in navigation |
title_short | Spatial uncertainty and environmental geometry in navigation |
title_sort | spatial uncertainty and environmental geometry in navigation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9915518/ https://www.ncbi.nlm.nih.gov/pubmed/36778354 http://dx.doi.org/10.1101/2023.01.30.526278 |
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