| Acute physiological responses of squirrel monkeys exposed to hyperdynamic environments. | |
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MedLine Citation:
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PMID: 6545937 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined the responses of small primate, the squirrel monkey, to acute exposures to hyperdynamic environments. Body temperature, heart rate, and behavior of four restrained squirrel monkeys were recorded. After baseline monitoring at 1 G, monkeys were exposed to: a) +2 Gz for 60 min, b) a hyperdynamic profile simulating the gravitational envelope of the space shuttle during launch (8 min, +2.9 Gz max), or c) a simulated shuttle re-entry profile (19 min, +1.7 Gz max). In all experiments, the colonic temperature started to fall within 10 min of the onset of centrifugation and declined by as much as 2 degrees C in some conditions. This was in contrast to the stable body temperature observed during the baseline period. Also, the heart rate showed distinct elevations during centrifugation. Heart rate subsequently declined to baseline levels during the post-centrifugation phase. Behaviorally, after the onset of centrifugation, the animals periodically appeared to become drowsy and fall asleep. On the other hand, during the control period they tended to be alert, shifting their gaze about the cage. Thus, primates are susceptible to acute exposures to hyperdynamic fields, demonstrating significant physiological and behavioral changes. |
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Authors:
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C A Fuller |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Aviation, space, and environmental medicine Volume: 55 ISSN: 0095-6562 ISO Abbreviation: Aviat Space Environ Med Publication Date: 1984 Mar |
Date Detail:
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Created Date: 1984-06-07 Completed Date: 1984-06-07 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7501714 Medline TA: Aviat Space Environ Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 226-30 Citation Subset: IM; S |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Behavior, Animal Body Temperature Cebidae / physiology* Gravitation / adverse effects* Heart Rate Hypothermia / etiology Male Saimiri / physiology* Sleep Stages Space Flight* Tachycardia / etiology Time Factors |
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