Cargando…
Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments
Performance on a visuomotor task in the presence of novel vestibular stimulation was assessed in nine healthy subjects. Four subjects had previously been adapted to 120 min exposure to noisy Galvanic vestibular stimulation (GVS) over 12 weekly sessions of 10 min; the remaining five subjects had neve...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4458607/ https://www.ncbi.nlm.nih.gov/pubmed/26106308 http://dx.doi.org/10.3389/fnsys.2015.00088 |
_version_ | 1782375107380903936 |
---|---|
author | Moore, Steven T. Dilda, Valentina Morris, Tiffany R. Yungher, Don A. MacDougall, Hamish G. |
author_facet | Moore, Steven T. Dilda, Valentina Morris, Tiffany R. Yungher, Don A. MacDougall, Hamish G. |
author_sort | Moore, Steven T. |
collection | PubMed |
description | Performance on a visuomotor task in the presence of novel vestibular stimulation was assessed in nine healthy subjects. Four subjects had previously been adapted to 120 min exposure to noisy Galvanic vestibular stimulation (GVS) over 12 weekly sessions of 10 min; the remaining five subjects had never experienced GVS. Subjects were seated in a flight simulator and asked to null the roll motion of a visual bar presented on a screen using a joystick. Both the visual bar and the simulator cabin were moving in roll with a pseudorandom (sum of sines) waveform that were uncorrelated. The cross correlation coefficient, which ranges from 1 (identical waveforms) to 0 (unrelated waveforms), was calculated for the ideal (perfect nulling of bar motion) and actual joystick input waveform for each subject. The cross correlation coefficient for the GVS-adapted group (0.90 [SD 0.04]) was significantly higher (t[8] = 3.162; p = 0.013) than the control group (0.82 [SD 0.04]), suggesting that prior adaptation to GVS was associated with an enhanced ability to perform the visuomotor task in the presence of novel vestibular noise. |
format | Online Article Text |
id | pubmed-4458607 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-44586072015-06-23 Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments Moore, Steven T. Dilda, Valentina Morris, Tiffany R. Yungher, Don A. MacDougall, Hamish G. Front Syst Neurosci Neuroscience Performance on a visuomotor task in the presence of novel vestibular stimulation was assessed in nine healthy subjects. Four subjects had previously been adapted to 120 min exposure to noisy Galvanic vestibular stimulation (GVS) over 12 weekly sessions of 10 min; the remaining five subjects had never experienced GVS. Subjects were seated in a flight simulator and asked to null the roll motion of a visual bar presented on a screen using a joystick. Both the visual bar and the simulator cabin were moving in roll with a pseudorandom (sum of sines) waveform that were uncorrelated. The cross correlation coefficient, which ranges from 1 (identical waveforms) to 0 (unrelated waveforms), was calculated for the ideal (perfect nulling of bar motion) and actual joystick input waveform for each subject. The cross correlation coefficient for the GVS-adapted group (0.90 [SD 0.04]) was significantly higher (t[8] = 3.162; p = 0.013) than the control group (0.82 [SD 0.04]), suggesting that prior adaptation to GVS was associated with an enhanced ability to perform the visuomotor task in the presence of novel vestibular noise. Frontiers Media S.A. 2015-06-08 /pmc/articles/PMC4458607/ /pubmed/26106308 http://dx.doi.org/10.3389/fnsys.2015.00088 Text en Copyright © 2015 Moore, Dilda, Morris, Yungher and MacDougall. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neuroscience Moore, Steven T. Dilda, Valentina Morris, Tiffany R. Yungher, Don A. MacDougall, Hamish G. Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments |
title | Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments |
title_full | Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments |
title_fullStr | Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments |
title_full_unstemmed | Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments |
title_short | Pre-adaptation to noisy Galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments |
title_sort | pre-adaptation to noisy galvanic vestibular stimulation is associated with enhanced sensorimotor performance in novel vestibular environments |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4458607/ https://www.ncbi.nlm.nih.gov/pubmed/26106308 http://dx.doi.org/10.3389/fnsys.2015.00088 |
work_keys_str_mv | AT moorestevent preadaptationtonoisygalvanicvestibularstimulationisassociatedwithenhancedsensorimotorperformanceinnovelvestibularenvironments AT dildavalentina preadaptationtonoisygalvanicvestibularstimulationisassociatedwithenhancedsensorimotorperformanceinnovelvestibularenvironments AT morristiffanyr preadaptationtonoisygalvanicvestibularstimulationisassociatedwithenhancedsensorimotorperformanceinnovelvestibularenvironments AT yungherdona preadaptationtonoisygalvanicvestibularstimulationisassociatedwithenhancedsensorimotorperformanceinnovelvestibularenvironments AT macdougallhamishg preadaptationtonoisygalvanicvestibularstimulationisassociatedwithenhancedsensorimotorperformanceinnovelvestibularenvironments |