Localization of neurons afferent to the optic tectum in longnose gars

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dc.contributor.author Northcutt, R. Glenn en_US
dc.date.accessioned 2007-04-06T18:18:29Z
dc.date.available 2007-04-06T18:18:29Z
dc.date.issued 1982-02-01 en_US
dc.identifier.citation Northcutt, R. Glenn (1982)."Localization of neurons afferent to the optic tectum in longnose gars." The Journal of Comparative Neurology 204(4): 325-335. <http://hdl.handle.net/2027.42/50017> en_US
dc.identifier.issn 0021-9967 en_US
dc.identifier.issn 1096-9861 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/50017
dc.identifier.uri http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=7061736&dopt=citation en_US
dc.description.abstract Afferent pathways to the optic tectum in the longnose gar were determined by unilateral tectal injections of HRP. Retrogradely labeled cells were observed in the ipsilateral caudal portion of the rostral entopeduncular nucleus and bilaterally in the rostral half of the lateral zone of area dorsalis of the telencephalon. The following diencephalic cell groups were also labeled following tectal injections: the ipsilateral anterior, ventrolateral, and ventromedial thalamic nuclei, the periventricular pretectal nucleus, and the central pretectal nucleus (bilaterally); the ventromedial thalamic and central pretectal nuclei revealed the largest number of labeled cells. At midbrain levels, retrogradely labeled cells were seen in the ipsilateral torus longitudinalis, nucleus isthmi, and accessory optic nucleus; cells were labeled bilaterally in the torus semicircularis and a rostral tegmental nucleus. Only a few cells were labeled in the contralateral optic tectum, suggesting that few of the fibers of the intertectal commissure are actually commissural to the tectum. At hindbrain levels, retrogradely labeled cells were seen bilaterally in the locus coeruleus, the superior, medial, and inferior reticular formations, the eurydendroid cells of the cerebellum, and the nucleus of the descending trigeminal tract; the contralateral dorsal funicular nucleus also exhibited labeling. Clearly, the tectum in gars receives a substantial number of nonvisual afferents from all major brain areas, most of which have been reported in other vertebrates. The functional significance of these afferent sources and their probable homologues in other vertebrate groups are discussed. en_US
dc.format.extent 1095136 bytes
dc.format.extent 3118 bytes
dc.format.mimetype application/pdf
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dc.publisher Wiley Subscription Services, Inc., A Wiley Company en_US
dc.subject.other Life and Medical Sciences en_US
dc.subject.other Neuroscience, Neurology and Psychiatry en_US
dc.title Localization of neurons afferent to the optic tectum in longnose gars en_US
dc.type Article en_US
dc.rights.robots IndexNoFollow en_US
dc.subject.hlbsecondlevel Neurosciences en_US
dc.subject.hlbtoplevel Health Sciences en_US
dc.description.peerreviewed Peer Reviewed en_US
dc.contributor.affiliationum Division of Biological Sciences, University of Michigan, Ann Arbor, Michigan 48109 en_US
dc.identifier.pmid 7061736 en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/50017/1/902040404_ftp.pdf en_US
dc.identifier.doi http://dx.doi.org/10.1002/cne.902040404 en_US
dc.identifier.source The Journal of Comparative Neurology en_US
dc.owningcollname Interdisciplinary and Peer-Reviewed
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