| Reflex contributions to the assessment of the vertical. | |
| | |
MedLine Citation:
|
PMID: 12192679 Owner: NASA Status: MEDLINE |
Abstract/OtherAbstract:
|
On the ground the vertical directions "up" and "down" have significance in relation to the strategy for avoiding collision of the skull with the planet. Voluntary acts to this end may be based on the experienced result of reflexly generated motor commands. Relevant receptors lie in the otolith organs of the labyrinth, but the head is seldom steady in waking life. A revised scheme of labyrinth reflexes on the limbs--"downhill limbs extend"--replaces the classical scheme of Magnus. Interactions with neck reflexes according to this scheme serve to stabilize the trunk. In an orbiting spacecraft the pattern of afferent signals from the labyrinth differs from that on the ground, and predictions based on the new scheme are to be tested in the project "Operation Push-Pull" proposed for ESRO's Spacelab. Other activities of the Council of Europe's Working Party on Aerospace Physiology and Medicine are briefly described. |
| | |
Authors:
|
T D Roberts |
Related Documents
:
|
10183859 - Towards a common vocabulary for identifying management issues in health projects. 15571089 - Artificial mummies from the andes. 9409499 - Junior doctors and clinical audit. 10260059 - How to rank computer projects. 10118179 - Or construction challenges for managers. 2819549 - Fixed and mobile facilities in dairy practice. 21524369 - Practice variability in the management of complex febrile seizures by pediatric emergen... 9538669 - Use of herbal medicines among consultation-liaison populations. a review of current inf... 6339849 - Allergy in otolaryngology. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Acta astronautica Volume: 2 ISSN: 0094-5765 ISO Abbreviation: Acta Astronaut Publication Date: 1975 Jan-Feb |
Date Detail:
|
Created Date: 2002-08-22 Completed Date: 2002-12-20 Revised Date: 2005-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 9890631 Medline TA: Acta Astronaut Country: England |
Other Details:
|
Languages: eng Pagination: 59-67 Citation Subset: S |
Affiliation:
|
Institute of Physiology, University of Glasgow, Glasgow, Scotland. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aerospace Medicine Animals Cats Ear, Inner / physiology* Gravitation Humans Movement / physiology Neck / innervation, physiology Posture / physiology* Reflex / physiology* Space Flight* Weightlessness* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Subgravity states: key to understanding the role of terrestrial gravity in human behaviour.
Next Document: Registration and reregistration application fees. Final rule; remanded for further notice and commen...