Titre
Long-distance intraretinal connections in birds.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Catsicas, S.
Auteure/Auteur
Catsicas, M.
Auteure/Auteur
Clarke, P.G.H.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0028-0836[print], 0028-0836[linking]
Statut éditorial
Publié
Date de publication
1987
Volume
326
Numéro
6109
Première page
186
Dernière page/numéro d’article
187
Langue
anglais
Notes
Journal Article Research Support, Non-U.S. Gov't --- Old month value: Mar 12-18
Résumé
Electrophysiological experiments have shown in both birds and mammals that remote parts of the retina, several millimetres apart, interact at the retinal level. The anatomical basis of this is poorly understood, although in mammals some cells in the ganglion cell layer have axons that terminate in the inner plexiform layer several millimetres from the cell body. In birds, the longest previously reported intraretinal connections were from amacrine cells, extending only a few hundred microns. But we here describe very long connections that span almost the entire extent of the retina in chicks and chick embryos. The parent cell bodies are in the inner nuclear layer of the ventral half of the retina, and they project in topographical order onto the dorsal half. They do not project to the brain. They may be involved in selective switching of attention between the upper and lower parts of the visual field, at an unprecedentedly early stage of visual processing.
PID Serval
serval:BIB_55536A37D01A
PMID
Date de création
2008-01-20T16:49:12.814Z
Date de création dans IRIS
2025-05-20T19:32:05Z