Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-11-24
pubmed:abstractText
In the present study we have investigated the efferent projections of both the dorsal and the ventral pallidum of the pigeon basal ganglia, using the sensitive anterograde tracer biotinylated dextran amine [Veenman C. L. et al. (1992) J. Neurosci. Meth. 41, 239-254]. Injections of biotinylated dextran amine in the pigeon dorsal pallidum produced numerous fibers and terminals in specific nuclei of the thalamus, hypothalamus, pretectum and midbrain tegmentum. In the thalamus, labeled fibers and terminals were observed in the avian thalamic reticular nucleus, the proposed motor part of the avian ventral tier (ventrointermediate area), the avian parafascicular nucleus (nucleus dorsointermedius posterior), as well as in the avian nucleus subrotundus (which may be comparable to the posterior intralaminar nuclei of mammals). Labeled fibers and terminals were also observed in the avian subthalamic nucleus (anterior nucleus of the ansa lenticularis), in the pretectum (nucleus spiriformis lateralis) and in the avian substantia nigra pars reticulata. Injections of biotinylated dextran amine in the pigeon ventral pallidum produced fibers and terminals in specific centers of the telencephalon, hypothalamus, thalamus, epithalamus, and midbrain and isthmic tegmentum. Labeled fibers and terminals were also observed in the avian subthalamic nucleus and the inmediately adjacent lateral hypothalamus, the avian thalamic reticular nucleus, the avian medidorsal nucleusaand posterior intralaminar nuclei, and the lateral habenula. Finally, labeled fibers and terminals were found in the ventral tegmental area, the avian substantia nigra pars compacta and the midbrain/isthmic tegmentum, which includes the pedunculopontine tegmental nucleus. Our results indicate that both the dorsal and ventral pallida of birds have unique and specific projection patterns, which are very similar to those of their counterparts in mammals. Our study suggests that these avian basal ganglia regions may be related mainly to somatomotor and limbic functions, respectively.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0306-4522
pubmed:author
pubmed:issnType
Print
pubmed:volume
81
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
773-802
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
The efferent projections of the dorsal and ventral pallidal parts of the pigeon basal ganglia, studied with biotinylated dextran amine.
pubmed:affiliation
Department of Anatomy and Neurobiology, College of Medicine, University of Tennessee, Memphis 38163, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't