Linked Life Data

10409097

Source:http://linkedlifedata.com/resource/pubmed/id/10409097

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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1999-7-13
pubmed:abstractText
In teleost fish, the tangential nucleus can be identified as a compact, separate cell group lying ventral to the VIIIth nerve near the middle of the vestibular complex. Morphological analysis of larval and adult hindbrains utilizing biocytin and fluorescent tracers showed the tangential nucleus to be located entirely within rhombomeric segment 5 with all axons projecting into the contralateral MLF. Combined single-cell electrophysiology and morphology in alert goldfish found three classes of neurons whose physiological sensitivity could be readily correlated with rotational axes about either the anterior (45 degrees), posterior (135 degrees), or horizontal (vertical axis) semicircular canals. Tangential neurons could be distinguised from those in semicircular-canal specific subnuclei by an irregular, spontaneous background of 10-15 sp/s and sustained static sensitivity after +/- 4 degrees head displacements. Each axis-specific tangential subtype terminated appropriately onto oculomotor subnuclei responsible for either vertical, torsional, or horizontal eye movements and, in a few cases, axon collaterals descended in the MLF toward the spinal cord. We hypothesize, therefore, that the tangential nucleus consists of 3 axis-specific phenotypes that process gravitoinertial signals largely responsible for controlling oculomotor function, but that also in part, maintain body posture.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0077-8923
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
871
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-14
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Otolith ocular reflex function of the tangential nucleus in teleost fish.
pubmed:affiliation
Department of Physiology and Neuroscience, New York University School of Medicine, New York, New York 10016, USA.
pubmed:publicationType
Journal Article