Olfactory Orientation and Navigation in Humans.

Although predicted by theory, there is no direct evidence that an animal can define an arbitrary location in space as a coordinate location on an odor grid. Here we show that humans can do so. Using a spatial match-to-sample procedure, humans were led to a random location within a room diffused with...

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Main Authors: Lucia F Jacobs, Jennifer Arter, Amy Cook, Frank J Sulloway
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0129387
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author Lucia F Jacobs
Jennifer Arter
Amy Cook
Frank J Sulloway
author_facet Lucia F Jacobs
Jennifer Arter
Amy Cook
Frank J Sulloway
author_sort Lucia F Jacobs
collection DOAJ
description Although predicted by theory, there is no direct evidence that an animal can define an arbitrary location in space as a coordinate location on an odor grid. Here we show that humans can do so. Using a spatial match-to-sample procedure, humans were led to a random location within a room diffused with two odors. After brief sampling and spatial disorientation, they had to return to this location. Over three conditions, participants had access to different sensory stimuli: olfactory only, visual only, and a final control condition with no olfactory, visual, or auditory stimuli. Humans located the target with higher accuracy in the olfaction-only condition than in the control condition and showed higher accuracy than chance. Thus a mechanism long proposed for the homing pigeon, the ability to define a location on a map constructed from chemical stimuli, may also be a navigational mechanism used by humans.
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spelling doaj.art-fd5fc962b5c941d7af26a6717afdca902022-12-21T18:40:44ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01106e012938710.1371/journal.pone.0129387Olfactory Orientation and Navigation in Humans.Lucia F JacobsJennifer ArterAmy CookFrank J SullowayAlthough predicted by theory, there is no direct evidence that an animal can define an arbitrary location in space as a coordinate location on an odor grid. Here we show that humans can do so. Using a spatial match-to-sample procedure, humans were led to a random location within a room diffused with two odors. After brief sampling and spatial disorientation, they had to return to this location. Over three conditions, participants had access to different sensory stimuli: olfactory only, visual only, and a final control condition with no olfactory, visual, or auditory stimuli. Humans located the target with higher accuracy in the olfaction-only condition than in the control condition and showed higher accuracy than chance. Thus a mechanism long proposed for the homing pigeon, the ability to define a location on a map constructed from chemical stimuli, may also be a navigational mechanism used by humans.https://doi.org/10.1371/journal.pone.0129387
spellingShingle Lucia F Jacobs
Jennifer Arter
Amy Cook
Frank J Sulloway
Olfactory Orientation and Navigation in Humans.
PLoS ONE
title Olfactory Orientation and Navigation in Humans.
title_full Olfactory Orientation and Navigation in Humans.
title_fullStr Olfactory Orientation and Navigation in Humans.
title_full_unstemmed Olfactory Orientation and Navigation in Humans.
title_short Olfactory Orientation and Navigation in Humans.
title_sort olfactory orientation and navigation in humans
url https://doi.org/10.1371/journal.pone.0129387
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