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Retinal projections in quail (Coturnix coturnix)

Published online by Cambridge University Press:  02 June 2009

Robert B. Norren Jr
Affiliation:
Department of Psychology, Barnard College of Columbia University, New York
Rae Silver
Affiliation:
Department of Psychology, Barnard College of Columbia University, New York

Abstract

The trajectory of retinal projections and the location of retinorecipient nuclei in the quail brain was examined after application of horseradish peroxidase (HRP) either to the cut end of the optic nerve or following intraocular injection of HRP. Retinal projections to the hypothalamus, dorsalateral anterior thalamus (rostralateral part, magnocellular part, and lateral part), lateral anterior thalamus, lateroventral geniculate nucleus, lateral geniculate intercalated nuclei (rostral and caudal parts), ventrolateral thalamus, superficial synencephalic nucleus, external nucleus, tectal gray, diffuse pretectal area, pretectal optic area, ectomammillary nucleus, and optic tectum were revealed. Retinal projections observed in quail were compared with results obtained in other avian species and considered in relation to possible anatomic pathways underlying photoperiodism and circadian rhythms.

Information

Type
Research Articles
Copyright
Copyright © Cambridge University Press 1989

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