Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
6
|
| pubmed:dateCreated |
1989-8-25
|
| pubmed:abstractText |
The visual-vestibular-proprioceptive sensory mismatch of vection provokes motion sickness in approximately 60% of healthy subjects. Approximately 60% of astronauts experience motion sickness in microgravity where vestibular/otolith function is altered. The purpose of this study was to determine the extent to which symptoms of motion sickness and tachygastria, an abnormal 4-9 cpm rhythm of the stomach, decrease or adapt during three repeated exposures to a rotating circular vection drum. Subjects sat in the drum for 45 min: 15 min baseline, 15 min drum rotation at 60 degrees.s-1, and 15 min recovery. Gastric myoelectric activity was continuously recorded with the electrogastrogram (EGG). Symptom reports were obtained during rotation. In Experiment I, 10 subjects were exposed to the drum 3 times with intersession intervals of 4-24 d. They failed to show adaptation based on subjective reports and all showed tachygastria. In Experiment II, 14 new subjects were exposed to the drum 3 times with intersession intervals of 48 h. The group experienced a reduction in symptoms and tachygastria with repeated exposure to the drum. Thus, symptomatic and physiological improvement occurred after training in subjects susceptible to vection-induced motion sickness. Preflight adaptation to visual-vestibular sensory mismatch may reduce motion sickness experienced in the environment of microgravity.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jun
|
| pubmed:issn |
0095-6562
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
60
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
566-72
|
| pubmed:dateRevised |
2006-11-15
|
| pubmed:meshHeading |
pubmed-meshheading:2751587-Adaptation, Physiological,
pubmed-meshheading:2751587-Adolescent,
pubmed-meshheading:2751587-Adult,
pubmed-meshheading:2751587-Electromyography,
pubmed-meshheading:2751587-Female,
pubmed-meshheading:2751587-Humans,
pubmed-meshheading:2751587-Male,
pubmed-meshheading:2751587-Motion Sickness,
pubmed-meshheading:2751587-Rotation,
pubmed-meshheading:2751587-Stomach,
pubmed-meshheading:2751587-Time Factors
|
| pubmed:year |
1989
|
| pubmed:articleTitle |
Adaptation to vection-induced symptoms of motion sickness.
|
| pubmed:affiliation |
Department of Psychology, Pennsylvania State University, University Park, PA 16802.
|
| pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
|