HapticV1, PubMed, Corpus, bibRecord, 000A25

Weightlessness alters up/down asymmetries in the perception of self-motion.

Identifieur interne : 000A25 ( PubMed/Corpus ); précédent : 000A24; suivant : 000A26

Weightlessness alters up/down asymmetries in the perception of self-motion.

Auteurs : Caty De Saedeleer ; Manuel Vidal ; Mark Lipshits ; Ana Bengoetxea ; Ana Maria Cebolla ; Alain Berthoz ; Guy Cheron ; Joseph Mcintyre

Source :

Experimental brain research [ 1432-1106 ] ; 2013.

RBID : pubmed:23397113

English descriptors

KwdEn :
- Adult, Astronauts (psychology), Female, Humans, Male, Middle Aged, Motion Perception (physiology), Posture (physiology), Self Concept, Weightlessness.
MESH :
- physiology : Motion Perception, Posture.
- psychology : Astronauts.
- Adult, Female, Humans, Male, Middle Aged, Self Concept, Weightlessness.

Abstract

In the present study, we investigated the effect of weightlessness on the ability to perceive and remember self-motion when passing through virtual 3D tunnels that curve in different direction (up, down, left, right). We asked cosmonaut subjects to perform the experiment before, during and after long-duration space flight aboard the International Space Station (ISS), and we manipulated vestibular versus haptic cues by having subjects perform the task either in a rigidly fixed posture with respect to the space station or during free-floating, in weightlessness. Subjects were driven passively at constant speed through the virtual 3D tunnels containing a single turn in the middle of a linear segment, either in pitch or in yaw, in increments of 12.5°. After exiting each tunnel, subjects were asked to report their perception of the turn's angular magnitude by adjusting, with a trackball, the angular bend in a rod symbolizing the outside view of the tunnel. We demonstrate that the strong asymmetry between downward and upward pitch turns observed on Earth showed an immediate and significant reduction when free-floating in weightlessness and a delayed reduction when the cosmonauts were firmly in contact with the floor of the station. These effects of weightlessness on the early processing stages (vestibular and optokinetics) that underlie the perception of self-motion did not stem from a change in alertness or any other uncontrolled factor in the ISS, as evidenced by the fact that weightlessness had no effect on the perception of yaw turns. That the effects on the perception of pitch may be partially overcome by haptic cues reflects the fusion of multisensory cues and top-down influences on visual perception.

DOI: 10.1007/s00221-013-3414-7
PubMed: 23397113

Links to Exploration step

pubmed:23397113

Le document en format XML

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<author><name sortKey="De Saedeleer, Caty" sort="De Saedeleer, Caty" uniqKey="De Saedeleer C" first="Caty" last="De Saedeleer">Caty De Saedeleer</name>
<affiliation><nlm:affiliation>Laboratory of Neurophysiology and Biomechanics of Movement, Université Libre de Bruxelles, CP 640, 50 Av F Roosevelt, Brussels, Belgium. caty.de.saedeleer@ulb.ac.be</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Vidal, Manuel" sort="Vidal, Manuel" uniqKey="Vidal M" first="Manuel" last="Vidal">Manuel Vidal</name>
</author>
<author><name sortKey="Lipshits, Mark" sort="Lipshits, Mark" uniqKey="Lipshits M" first="Mark" last="Lipshits">Mark Lipshits</name>
</author>
<author><name sortKey="Bengoetxea, Ana" sort="Bengoetxea, Ana" uniqKey="Bengoetxea A" first="Ana" last="Bengoetxea">Ana Bengoetxea</name>
</author>
<author><name sortKey="Cebolla, Ana Maria" sort="Cebolla, Ana Maria" uniqKey="Cebolla A" first="Ana Maria" last="Cebolla">Ana Maria Cebolla</name>
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<author><name sortKey="Berthoz, Alain" sort="Berthoz, Alain" uniqKey="Berthoz A" first="Alain" last="Berthoz">Alain Berthoz</name>
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<author><name sortKey="Cheron, Guy" sort="Cheron, Guy" uniqKey="Cheron G" first="Guy" last="Cheron">Guy Cheron</name>
</author>
<author><name sortKey="Mcintyre, Joseph" sort="Mcintyre, Joseph" uniqKey="Mcintyre J" first="Joseph" last="Mcintyre">Joseph Mcintyre</name>
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<affiliation><nlm:affiliation>Laboratory of Neurophysiology and Biomechanics of Movement, Université Libre de Bruxelles, CP 640, 50 Av F Roosevelt, Brussels, Belgium. caty.de.saedeleer@ulb.ac.be</nlm:affiliation>
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<author><name sortKey="Vidal, Manuel" sort="Vidal, Manuel" uniqKey="Vidal M" first="Manuel" last="Vidal">Manuel Vidal</name>
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<author><name sortKey="Lipshits, Mark" sort="Lipshits, Mark" uniqKey="Lipshits M" first="Mark" last="Lipshits">Mark Lipshits</name>
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<author><name sortKey="Bengoetxea, Ana" sort="Bengoetxea, Ana" uniqKey="Bengoetxea A" first="Ana" last="Bengoetxea">Ana Bengoetxea</name>
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<author><name sortKey="Cebolla, Ana Maria" sort="Cebolla, Ana Maria" uniqKey="Cebolla A" first="Ana Maria" last="Cebolla">Ana Maria Cebolla</name>
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<author><name sortKey="Berthoz, Alain" sort="Berthoz, Alain" uniqKey="Berthoz A" first="Alain" last="Berthoz">Alain Berthoz</name>
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<author><name sortKey="Cheron, Guy" sort="Cheron, Guy" uniqKey="Cheron G" first="Guy" last="Cheron">Guy Cheron</name>
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<author><name sortKey="Mcintyre, Joseph" sort="Mcintyre, Joseph" uniqKey="Mcintyre J" first="Joseph" last="Mcintyre">Joseph Mcintyre</name>
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<series><title level="j">Experimental brain research</title>
<idno type="eISSN">1432-1106</idno>
<imprint><date when="2013" type="published">2013</date>
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<term>Astronauts (psychology)</term>
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<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Motion Perception (physiology)</term>
<term>Posture (physiology)</term>
<term>Self Concept</term>
<term>Weightlessness</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Motion Perception</term>
<term>Posture</term>
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<keywords scheme="MESH" xml:lang="en"><term>Adult</term>
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<term>Humans</term>
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<term>Weightlessness</term>
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<front><div type="abstract" xml:lang="en">In the present study, we investigated the effect of weightlessness on the ability to perceive and remember self-motion when passing through virtual 3D tunnels that curve in different direction (up, down, left, right). We asked cosmonaut subjects to perform the experiment before, during and after long-duration space flight aboard the International Space Station (ISS), and we manipulated vestibular versus haptic cues by having subjects perform the task either in a rigidly fixed posture with respect to the space station or during free-floating, in weightlessness. Subjects were driven passively at constant speed through the virtual 3D tunnels containing a single turn in the middle of a linear segment, either in pitch or in yaw, in increments of 12.5°. After exiting each tunnel, subjects were asked to report their perception of the turn's angular magnitude by adjusting, with a trackball, the angular bend in a rod symbolizing the outside view of the tunnel. We demonstrate that the strong asymmetry between downward and upward pitch turns observed on Earth showed an immediate and significant reduction when free-floating in weightlessness and a delayed reduction when the cosmonauts were firmly in contact with the floor of the station. These effects of weightlessness on the early processing stages (vestibular and optokinetics) that underlie the perception of self-motion did not stem from a change in alertness or any other uncontrolled factor in the ISS, as evidenced by the fact that weightlessness had no effect on the perception of yaw turns. That the effects on the perception of pitch may be partially overcome by haptic cues reflects the fusion of multisensory cues and top-down influences on visual perception.</div>
</front>
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<JournalIssue CitedMedium="Internet"><Volume>226</Volume>
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<Title>Experimental brain research</Title>
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<ArticleTitle>Weightlessness alters up/down asymmetries in the perception of self-motion.</ArticleTitle>
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<Abstract><AbstractText>In the present study, we investigated the effect of weightlessness on the ability to perceive and remember self-motion when passing through virtual 3D tunnels that curve in different direction (up, down, left, right). We asked cosmonaut subjects to perform the experiment before, during and after long-duration space flight aboard the International Space Station (ISS), and we manipulated vestibular versus haptic cues by having subjects perform the task either in a rigidly fixed posture with respect to the space station or during free-floating, in weightlessness. Subjects were driven passively at constant speed through the virtual 3D tunnels containing a single turn in the middle of a linear segment, either in pitch or in yaw, in increments of 12.5°. After exiting each tunnel, subjects were asked to report their perception of the turn's angular magnitude by adjusting, with a trackball, the angular bend in a rod symbolizing the outside view of the tunnel. We demonstrate that the strong asymmetry between downward and upward pitch turns observed on Earth showed an immediate and significant reduction when free-floating in weightlessness and a delayed reduction when the cosmonauts were firmly in contact with the floor of the station. These effects of weightlessness on the early processing stages (vestibular and optokinetics) that underlie the perception of self-motion did not stem from a change in alertness or any other uncontrolled factor in the ISS, as evidenced by the fact that weightlessness had no effect on the perception of yaw turns. That the effects on the perception of pitch may be partially overcome by haptic cues reflects the fusion of multisensory cues and top-down influences on visual perception.</AbstractText>
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Weightlessness alters up/down asymmetries in the perception of self-motion.

Weightlessness alters up/down asymmetries in the perception of self-motion.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki