Direction specific biases in human visual and vestibular heading perception.

Heading direction is determined from visual and vestibular cues. Both sensory modalities have been shown to have better direction discrimination for headings near straight ahead. Previous studies of visual heading estimation have not used the full range of stimuli, and vestibular heading estimation...

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Autor principal:	Benjamin T Crane
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c8669af691d64dc0b63d005a0f2bb1e4
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spelling	oai:doaj.org-article:c8669af691d64dc0b63d005a0f2bb1e42021-11-18T08:05:55ZDirection specific biases in human visual and vestibular heading perception.1932-620310.1371/journal.pone.0051383https://doaj.org/article/c8669af691d64dc0b63d005a0f2bb1e42012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23236490/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Heading direction is determined from visual and vestibular cues. Both sensory modalities have been shown to have better direction discrimination for headings near straight ahead. Previous studies of visual heading estimation have not used the full range of stimuli, and vestibular heading estimation has not previously been reported. The current experiments measure human heading estimation in the horizontal plane to vestibular, visual, and spoken stimuli. The vestibular and visual tasks involved 16 cm of platform or visual motion. The spoken stimulus was a voice command speaking a heading angle. All conditions demonstrated direction dependent biases in perceived headings such that biases increased with headings further from the fore-aft axis. The bias was larger with the visual stimulus when compared with the vestibular stimulus in all 10 subjects. For the visual and vestibular tasks precision was best for headings near fore-aft. The spoken headings had the least bias, and the variation in precision was less dependent on direction. In a separate experiment when headings were limited to ± 45°, the biases were much less, demonstrating the range of headings influences perception. There was a strong and highly significant correlation between the bias curves for visual and spoken stimuli in every subject. The correlation between visual-vestibular and vestibular-spoken biases were weaker but remained significant. The observed biases in both visual and vestibular heading perception qualitatively resembled predictions of a recent population vector decoder model (Gu et al., 2010) based on the known distribution of neuronal sensitivities.Benjamin T CranePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 12, p e51383 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Benjamin T Crane Direction specific biases in human visual and vestibular heading perception.
description	Heading direction is determined from visual and vestibular cues. Both sensory modalities have been shown to have better direction discrimination for headings near straight ahead. Previous studies of visual heading estimation have not used the full range of stimuli, and vestibular heading estimation has not previously been reported. The current experiments measure human heading estimation in the horizontal plane to vestibular, visual, and spoken stimuli. The vestibular and visual tasks involved 16 cm of platform or visual motion. The spoken stimulus was a voice command speaking a heading angle. All conditions demonstrated direction dependent biases in perceived headings such that biases increased with headings further from the fore-aft axis. The bias was larger with the visual stimulus when compared with the vestibular stimulus in all 10 subjects. For the visual and vestibular tasks precision was best for headings near fore-aft. The spoken headings had the least bias, and the variation in precision was less dependent on direction. In a separate experiment when headings were limited to ± 45°, the biases were much less, demonstrating the range of headings influences perception. There was a strong and highly significant correlation between the bias curves for visual and spoken stimuli in every subject. The correlation between visual-vestibular and vestibular-spoken biases were weaker but remained significant. The observed biases in both visual and vestibular heading perception qualitatively resembled predictions of a recent population vector decoder model (Gu et al., 2010) based on the known distribution of neuronal sensitivities.
format	article
author	Benjamin T Crane
author_facet	Benjamin T Crane
author_sort	Benjamin T Crane
title	Direction specific biases in human visual and vestibular heading perception.
title_short	Direction specific biases in human visual and vestibular heading perception.
title_full	Direction specific biases in human visual and vestibular heading perception.
title_fullStr	Direction specific biases in human visual and vestibular heading perception.
title_full_unstemmed	Direction specific biases in human visual and vestibular heading perception.
title_sort	direction specific biases in human visual and vestibular heading perception.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/c8669af691d64dc0b63d005a0f2bb1e4
work_keys_str_mv	AT benjamintcrane directionspecificbiasesinhumanvisualandvestibularheadingperception
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Direction specific biases in human visual and vestibular heading perception.

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