Linked Life Data

2757783

Source:http://linkedlifedata.com/resource/pubmed/id/2757783

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1989-9-11
pubmed:abstractText
Rule-governed behavioral chains occur predictably within the grooming sequences of rats. Descending levels of decerebration were used to identify the minimum brain substrate needed to generate the sequential structure of a chain that connects up to 25 actions into a stereotyped grooming pattern. Full brain transections in the coronal plane isolated the decerebrate brainstem of rats at one of 3 different levels: mesencephalic (above the midbrain), metencephalic (above the hindbrain), and myelencephalic (above the medulla oblongata). Complete chain sequences were produced successfully by higher decerebrates, demonstrating that brainstem circuitry suffices for the basic generation of this sequential pattern. The pattern of sequential degradation across lower transection levels was gradual and continuous, raising the possibility that the generating circuitry for this chain may not be localized at a single level within the brainstem but rather may be distributed across the hindbrain as a degenerate or parallel network. The competence of this network appears to be reduced merely in increments by descending transections. This possibility is compared to localized generator alternatives.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0166-4328
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
241-53
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Progressive degradation of serial grooming chains by descending decerebration.
pubmed:affiliation
Department of Psychology, University of Michigan, Ann Arbor 48109.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.