Earth-vertical motion perception assessment using an elevator: a feasibility study.

Autor: Schellenberg S; Physiotherapy and Occupational Therapy Research Center, Directorate of Research and Education, University Hospital Zurich, Zurich, Switzerland., Straumann D; Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland.; Clinical Neuroscience Center, University Hospital Zurich, Zurich, Switzerland., Green DA; Space Medicine Team, HRE-OM, European Astronaut Centre, European Space Agency, Cologne, Germany.; KBRwyle Laboratories GmbH, Cologne, Germany.; Centre of Human & Applied Physiological Sciences, King's College London, London, UK., Schuetz P; Lucerne University of Applied Sciences and Arts, Lucerne, Switzerland., Zehnder Y; Lucerne University of Applied Sciences and Arts, Lucerne, Switzerland., Swanenburg J; Physiotherapy and Occupational Therapy Research Center, Directorate of Research and Education, University Hospital Zurich, Zurich, Switzerland. jaap.swanenburg@uzh.ch.; Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland. jaap.swanenburg@uzh.ch.; Air Force Center, Air Base Dübendorf, UZH Space Hub, Zurich, Switzerland. jaap.swanenburg@uzh.ch.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Jun 09; Vol. 13 (1), pp. 9450. Date of Electronic Publication: 2023 Jun 09.
DOI: 10.1038/s41598-023-36655-7
Abstrakt: A feasible, inexpensive, rapid, and easy-to-use method to measure vestibular vertical movement perception is needed to assess the sacculus-mediated low-frequency otolith function of dizzy patients. To evaluate the feasibility of reaction time assessment in response to vertical motion induced by an elevator in healthy young individuals. We recorded linear acceleration/deceleration reaction times (LA-RT/LD-RT) of 20 healthy (13 female) subjects (mean age: 22 years ± 1 SD) as a measure of vertical vestibular motion perception. LA-RT/LD-RT were defined as the time elapsed from the start of elevator acceleration or deceleration to the time at which subjects in a sitting position indicated perceiving a change in velocity by pushing a button with their thumb. The light reaction time was measured as a reference. All 20 subjects tolerated the assessment with repeated elevator rides and reported no adverse events. Over all experiments, one upward and four downward rides had to be excluded for technical reasons (2.5%). The fraction of premature button presses varied among the four conditions, possibly related to elevator vibration (upward rides: LA-RT-up 66%, LD-RT-up 0%; downward rides: LA-RT-down 12%, LD-RT-down 4%). Thus LD-RT-up yielded the most robust results. The reaction time to earth-vertical deceleration elicited by an elevator provides a consistent indicator of linear vestibular motion perception in healthy humans. The testing procedure is inexpensive and easy to use. Deceleration on upward rides yielded the most robust measurements.
(© 2023. The Author(s).)
Databáze: MEDLINE
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