Optic afferents to the parabrachial nucleus.
Following intraocular injection of cholera toxin subunit B (CTB), optic afferents to the dorsal pontine region were observed in Mongolian gerbils, Chilean degus, and laboratory rats. CTB-positive optic axons emerge at the caudal pole of the superior colliculus, descend through the periaqueductal gray, and innervate the lateral parabrachial nucleus. This projection appears to be a continuation of the retinal pathway that innervates the dorsal raphe nucleus in these same species.
Fite
Katherine V
KV
Neuroscience and Behavior Program, Tobin Hall, University of Massachusetts, Amherst 01003, USA. kfite@psych.umass.edu
Janusonis
Skirmantas
S
D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D001931:Brain Mapping; D005849:Gerbillinae; D011149:Pons / Q000502:physiology*; D011903:Raphe Nuclei / Q000502:physiology; D051381:Rats; D012377:Rodentia; D014795:Visual Pathways / Q000502:physiology*