Linked Life Data

7684971

Source:http://linkedlifedata.com/resource/pubmed/id/7684971

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1993-7-8
pubmed:abstractText
Short latency vestibular evoked potentials (VsEPs) to angular acceleration impulses (maximal intensity 20,000 degrees/sec2, rise time 1.5-3 msec) were recorded by skin electrodes in cats before and after various surgical procedures. Under general anesthesia, the animals underwent unilateral labyrinthectomy and the VsEPs in response to stimulation of the remaining inner ear in the plane of the lateral semicicular canal (SCC) with the head flexed 20 degrees-25 degrees were recorded as a baseline. The lateral SCC was then selectively obliterated near its ampulla. This induced major changes in the VsEPs recorded in response to stimulation of the remaining inner ear in this plane: the first 2 VsEP waves were absent, and only longer latency, smaller amplitude waves were present in response to both clockwise and counterclockwise stimulation. On the other hand, obliteration of the anterior and posterior SCCs and, in addition, destruction of both maculae were without major effects on the first 2 VsEP waves in response to excitatory stimulation. The results confirm that when the head is flexed 20 degrees-25 degrees and stimulated with angular acceleration impulses in the horizontal plane, the major site of initiation of the VsEPs in cats and probably in man is the crista ampullaris of the lateral SCC.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0013-4694
pubmed:author
pubmed:issnType
Print
pubmed:volume
88
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
225-8
pubmed:dateRevised
2008-9-9
pubmed:meshHeading
pubmed:articleTitle
The contribution of the lateral semicircular canal to the short latency vestibular evoked potentials in cat.
pubmed:affiliation
Department of Otolaryngology-Head and Neck Surgery, Hadassah University Hospital, Jerusalem, Israel.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't