Retinal ganglion cells projecting to the dorsal raphe and lateral geniculate complex in Mongolian gerbils.
Injections of rhodamine-B into the dorsal raphe nucleus (DRN) and Fluoro-Gold into the lateral geniculate nucleus (LGN) revealed double-labeled retinal ganglion cells (DL RGCs) projecting to both nuclei. The soma-size distribution of DL RGCs was compared with three other distributions: DRN-projecting RGCs, LGN-projecting RGCs, and a large sample of RGCs labeled via the optic nerve with DiI. DL RGC soma diameters fell primarily within the mid-to-upper size range of all three distributions. DL RGCs may provide information to both nuclei concerning comparable aspects of light and visual stimulation via collateralized axons.
Neuroscience and Behavior Program, Tobin Hall, University of Massachusetts, Amherst, MA 01003, USA. kfite@psych.umass.edu
Katherine V
KV
Fite
Melissa A
MA
Birkett
Andrea
A
Smith
Skirmantas
S
Janusonis
Stephen
S
McLaughlin
D000818:Animals; D005829:Geniculate Bodies / Q000737:chemistry / Q000502:physiology*; D005849:Gerbillinae; D008297:Male; D009434:Neural Pathways / Q000737:chemistry / Q000502:physiology; D011903:Raphe Nuclei / Q000737:chemistry / Q000502:physiology*; D012165:Retinal Ganglion Cells / Q000737:chemistry / Q000502:physiology*