Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

European vestibular experiments on the Spacelab-1 mission: 3. Caloric nystagmus in microgravity

European vestibular experiments on the Spacelab-1 mission: 3. Caloric nystagmus in microgravity 221 64 64 2 2 H. Scherer U. Brandt A. H. Clarke U. Merbold SL1 Payload Specialist R. Parker SL1 Mission Specialist Institut für Otolaryngology, Klinikum Großhadern Universität München D-8000 München Germany ESA USA NASA USA Summary Response to caloric stimulation was examined in two subjects in the weightless environment of orbital flight. Using air insufflation, a binaural temperature stimulus profile was performed twice on each subject during flight. In all but one test, which was carried out on the first mission day, a caloric nystagmus was registered. This zero-g nystagmus was similar to ground-based pre and postflight responses with regard to its intensity, its temporal correlation with the stimulus profile (nystagmus was always directed towards the warmer ear) and the subjective sensations reported by the tested subjects. These findings demonstrate that mechanisms other than thermoconvection are involved in the elicitation of the caloric nystagmus response. At each stage of the temperature stimulus profile, linear acceleratory stimulation was presented in the form of oscillations in the X-axis. Some differences were found between one-g and zero-g conditions in the resultant modification of the nystagmus response. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experimental Brain Research Springer Journals

European vestibular experiments on the Spacelab-1 mission: 3. Caloric nystagmus in microgravity

Loading next page...
 
/lp/springer-journals/european-vestibular-experiments-on-the-spacelab-1-mission-3-caloric-OA0FJ0HUO1

References (23)

Publisher
Springer Journals
Copyright
Copyright © 1986 by Springer-Verlag
Subject
Biomedicine; Neurosciences; Neurology
ISSN
0014-4819
eISSN
1432-1106
DOI
10.1007/BF00237741
Publisher site
See Article on Publisher Site

Abstract

221 64 64 2 2 H. Scherer U. Brandt A. H. Clarke U. Merbold SL1 Payload Specialist R. Parker SL1 Mission Specialist Institut für Otolaryngology, Klinikum Großhadern Universität München D-8000 München Germany ESA USA NASA USA Summary Response to caloric stimulation was examined in two subjects in the weightless environment of orbital flight. Using air insufflation, a binaural temperature stimulus profile was performed twice on each subject during flight. In all but one test, which was carried out on the first mission day, a caloric nystagmus was registered. This zero-g nystagmus was similar to ground-based pre and postflight responses with regard to its intensity, its temporal correlation with the stimulus profile (nystagmus was always directed towards the warmer ear) and the subjective sensations reported by the tested subjects. These findings demonstrate that mechanisms other than thermoconvection are involved in the elicitation of the caloric nystagmus response. At each stage of the temperature stimulus profile, linear acceleratory stimulation was presented in the form of oscillations in the X-axis. Some differences were found between one-g and zero-g conditions in the resultant modification of the nystagmus response.

Journal

Experimental Brain ResearchSpringer Journals

Published: Oct 1, 1986

There are no references for this article.