Proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.

<h4>Background</h4>Adaptation to constant stimulation has often been used to investigate the mechanisms of perceptual coding, but the adaptive processes within the proprioceptive channels that encode body movement have not been well described. We investigated them using vibration as a st...

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Autores principales: Tatjana Seizova-Cajic, Janette L Smith, Janet L Taylor, Simon C Gandevia
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Publicado: Public Library of Science (PLoS) 2007
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Acceso en línea:https://doaj.org/article/13f67835eb2548cd9d1c7e60b77f2fc6
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spelling oai:doaj.org-article:13f67835eb2548cd9d1c7e60b77f2fc62021-11-25T06:10:41ZProprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.1932-620310.1371/journal.pone.0001037https://doaj.org/article/13f67835eb2548cd9d1c7e60b77f2fc62007-10-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0001037https://doaj.org/toc/1932-6203<h4>Background</h4>Adaptation to constant stimulation has often been used to investigate the mechanisms of perceptual coding, but the adaptive processes within the proprioceptive channels that encode body movement have not been well described. We investigated them using vibration as a stimulus because vibration of muscle tendons results in a powerful illusion of movement.<h4>Methodology/principal findings</h4>We applied sustained 90 Hz vibratory stimulation to biceps brachii, an elbow flexor and induced the expected illusion of elbow extension (in 12 participants). There was clear evidence of adaptation to the movement signal both during the 6-min long vibration and on its cessation. During vibration, the strong initial illusion of extension waxed and waned, with diminishing duration of periods of illusory movement and occasional reversals in the direction of the illusion. After vibration there was an aftereffect in which the stationary elbow seemed to move into flexion. Muscle activity shows no consistent relationship with the variations in perceived movement.<h4>Conclusion</h4>We interpret the observed effects as adaptive changes in the central mechanisms that code movement in direction-selective opponent channels.Tatjana Seizova-CajicJanette L SmithJanet L TaylorSimon C GandeviaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 2, Iss 10, p e1037 (2007)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Tatjana Seizova-Cajic
Janette L Smith
Janet L Taylor
Simon C Gandevia
Proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.
description <h4>Background</h4>Adaptation to constant stimulation has often been used to investigate the mechanisms of perceptual coding, but the adaptive processes within the proprioceptive channels that encode body movement have not been well described. We investigated them using vibration as a stimulus because vibration of muscle tendons results in a powerful illusion of movement.<h4>Methodology/principal findings</h4>We applied sustained 90 Hz vibratory stimulation to biceps brachii, an elbow flexor and induced the expected illusion of elbow extension (in 12 participants). There was clear evidence of adaptation to the movement signal both during the 6-min long vibration and on its cessation. During vibration, the strong initial illusion of extension waxed and waned, with diminishing duration of periods of illusory movement and occasional reversals in the direction of the illusion. After vibration there was an aftereffect in which the stationary elbow seemed to move into flexion. Muscle activity shows no consistent relationship with the variations in perceived movement.<h4>Conclusion</h4>We interpret the observed effects as adaptive changes in the central mechanisms that code movement in direction-selective opponent channels.
format article
author Tatjana Seizova-Cajic
Janette L Smith
Janet L Taylor
Simon C Gandevia
author_facet Tatjana Seizova-Cajic
Janette L Smith
Janet L Taylor
Simon C Gandevia
author_sort Tatjana Seizova-Cajic
title Proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.
title_short Proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.
title_full Proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.
title_fullStr Proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.
title_full_unstemmed Proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.
title_sort proprioceptive movement illusions due to prolonged stimulation: reversals and aftereffects.
publisher Public Library of Science (PLoS)
publishDate 2007
url https://doaj.org/article/13f67835eb2548cd9d1c7e60b77f2fc6
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AT janettelsmith proprioceptivemovementillusionsduetoprolongedstimulationreversalsandaftereffects
AT janetltaylor proprioceptivemovementillusionsduetoprolongedstimulationreversalsandaftereffects
AT simoncgandevia proprioceptivemovementillusionsduetoprolongedstimulationreversalsandaftereffects
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