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Reciprocal connections between the rabbit suprageniculate pretectal nucleus and the superior colliculus: Tracer study with horseradish peroxidase and fluorogold

Published online by Cambridge University Press:  02 June 2009

C. Lagares ,
M. Caballero-Bleda ,
B. Fernández  and
L. Puelles
C. Lagares
Affiliation:
Department of Morphological Sciences, Neurobiology Group, University of Murcia, Murcia, Spain
M. Caballero-Bleda
Affiliation:
Department of Morphological Sciences, Neurobiology Group, University of Murcia, Murcia, Spain
B. Fernández
Affiliation:
Department of Morphological Sciences, Neurobiology Group, University of Murcia, Murcia, Spain
L. Puelles
Affiliation:
Department of Morphological Sciences, Neurobiology Group, University of Murcia, Murcia, Spain
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Abstract

Connections of the rabbit suprageniculate pretectal nucleus (SP) with the superior colliculus were explored by means of retrograde transport of horseradish peroxidase or Fluorogold. Large injections centered in the superficial and intermediate tectal layers resulted in bilateral retrograde transport to the medium-size multipolar neurons of the suprageniculate pretectal nucleus. Horseradish peroxidase was also transported anterogradely into the ipsilateral and contralateral neuropiles of the suprageniculate pretectal nucleus. The labeled cells in SP were dispersed throughout the nucleus, including its dorsal, wedge-shaped, internal portion. Labeling was mainly ipsilateral, and less abundant on the contralateral side.

Keywords

PretectumVisual systemMammalsTectum
Type
Research Articles
Information
Visual Neuroscience , Volume 11 , Issue 2 , March 1994 , pp. 347 - 353
Copyright
Copyright © Cambridge University Press 1994

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