Document Detail

Passive mechanical factors governing head and neck movements at the onset of sudden falls in the cat.
MedLine Citation:
PMID:  998749     Owner:  NLM     Status:  MEDLINE    
The head and neck movements of 16 cats undergoing sudden, unexpected falls have been assessed as a study preliminary to the investigation of reflex responses to the same stimulus. Six of the cats were studied while normal, and similarly tested at a later date to examine for any changes induced by making these animals pitch and roll insensitive, or by labyrinthectomy. The head and neck always described a sterotyped pattern of movement, consisting of progressive dorsiflexion of the neck without rotation of the head in space. This was unaltered by partial or complete loss of eighth nerve function. These findings are consistent with the head and neck movements of a falling cat being predominantly passive in origin, at least for the first 200 msec or so of an unexpected fall.
D G Watt
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of physical medicine     Volume:  55     ISSN:  0002-9491     ISO Abbreviation:  Am J Phys Med     Publication Date:  1976 Dec 
Date Detail:
Created Date:  1977-01-29     Completed Date:  1977-01-29     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  0370503     Medline TA:  Am J Phys Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  291-300     Citation Subset:  AIM; IM; S    
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MeSH Terms
Ear, Inner / physiology
Head / physiology*
Muscle Contraction
Neck / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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