Systematic biases in human heading estimation.

Heading estimation is vital to everyday navigation and locomotion. Despite extensive behavioral and physiological research on both visual and vestibular heading estimation over more than two decades, the accuracy of heading estimation has not yet been systematically evaluated. Therefore human visual...

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Autores principales:	Luigi F Cuturi, Paul R MacNeilage
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1dd64bbd7fbc46c9b9ecea4dccac29c9
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spelling	oai:doaj.org-article:1dd64bbd7fbc46c9b9ecea4dccac29c92021-11-18T07:57:16ZSystematic biases in human heading estimation.1932-620310.1371/journal.pone.0056862https://doaj.org/article/1dd64bbd7fbc46c9b9ecea4dccac29c92013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23457631/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Heading estimation is vital to everyday navigation and locomotion. Despite extensive behavioral and physiological research on both visual and vestibular heading estimation over more than two decades, the accuracy of heading estimation has not yet been systematically evaluated. Therefore human visual and vestibular heading estimation was assessed in the horizontal plane using a motion platform and stereo visual display. Heading angle was overestimated during forward movements and underestimated during backward movements in response to both visual and vestibular stimuli, indicating an overall multimodal bias toward lateral directions. Lateral biases are consistent with the overrepresentation of lateral preferred directions observed in neural populations that carry visual and vestibular heading information, including MSTd and otolith afferent populations. Due to this overrepresentation, population vector decoding yields patterns of bias remarkably similar to those observed behaviorally. Lateral biases are inconsistent with standard bayesian accounts which predict that estimates should be biased toward the most common straight forward heading direction. Nevertheless, lateral biases may be functionally relevant. They effectively constitute a perceptual scale expansion around straight ahead which could allow for more precise estimation and provide a high gain feedback signal to facilitate maintenance of straight-forward heading during everyday navigation and locomotion.Luigi F CuturiPaul R MacNeilagePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 2, p e56862 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Luigi F Cuturi Paul R MacNeilage Systematic biases in human heading estimation.
description	Heading estimation is vital to everyday navigation and locomotion. Despite extensive behavioral and physiological research on both visual and vestibular heading estimation over more than two decades, the accuracy of heading estimation has not yet been systematically evaluated. Therefore human visual and vestibular heading estimation was assessed in the horizontal plane using a motion platform and stereo visual display. Heading angle was overestimated during forward movements and underestimated during backward movements in response to both visual and vestibular stimuli, indicating an overall multimodal bias toward lateral directions. Lateral biases are consistent with the overrepresentation of lateral preferred directions observed in neural populations that carry visual and vestibular heading information, including MSTd and otolith afferent populations. Due to this overrepresentation, population vector decoding yields patterns of bias remarkably similar to those observed behaviorally. Lateral biases are inconsistent with standard bayesian accounts which predict that estimates should be biased toward the most common straight forward heading direction. Nevertheless, lateral biases may be functionally relevant. They effectively constitute a perceptual scale expansion around straight ahead which could allow for more precise estimation and provide a high gain feedback signal to facilitate maintenance of straight-forward heading during everyday navigation and locomotion.
format	article
author	Luigi F Cuturi Paul R MacNeilage
author_facet	Luigi F Cuturi Paul R MacNeilage
author_sort	Luigi F Cuturi
title	Systematic biases in human heading estimation.
title_short	Systematic biases in human heading estimation.
title_full	Systematic biases in human heading estimation.
title_fullStr	Systematic biases in human heading estimation.
title_full_unstemmed	Systematic biases in human heading estimation.
title_sort	systematic biases in human heading estimation.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/1dd64bbd7fbc46c9b9ecea4dccac29c9
work_keys_str_mv	AT luigifcuturi systematicbiasesinhumanheadingestimation AT paulrmacneilage systematicbiasesinhumanheadingestimation
_version_	1718422715611742208

Systematic biases in human heading estimation.

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