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The subcortical distribution of optic fibers in Saimiri sciureus (Squirrel monkey)
Author(s) -
CamposOrtega J. A.,
Glees P.
Publication year - 1967
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901310205
Subject(s) - saimiri sciureus , lamina , anatomy , biology , optic tract , nucleus , optic nerve , dorsum , squirrel monkey , neuroscience
Abstract 1. The optic subcortical connections in a new world monkey (Saimiri sciureus) have been examined with the Nauta and Glass silver impregnation. 2. Terminal degeneration following optic nerve sectioning reveals a laminated dorsal cell mass, which contains separate points of termination for crossed and uncrossed optic fibers. 3. Experimentally it can be shown that the two magno‐cellular laminae have separaate connections. The most ventral lamina (lamina 1) receives contralatieral fibers, lamina 2 ipsilateral fibers. The dorsal cell mass in the normal material undivided shows experimentally the following lamination: layers 4 and 6 receive contralateral fibers while layers 3 and 5 receive ipsilateral fibers. 4. Further points of termination for optic impulses are: the nucleus pregeniculatus, the nucleus limitans, and the superior colliculi (stratum poticum). 5. Fibers of the accessory optic system are crossed entirely and terminate in the nucleus of the accessory optic tract.