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Titolo:
DEVELOPMENT OF PHOTORECEPTOR MOSAICS IN THE PRIMATE RETINA
Autore:
WIKLER KC; RAKIC P;
Indirizzi:
YALE UNIV,SCH MED,NEUROBIOL SECT,333 CEDAR ST NEW HAVEN CT 06510
Titolo Testata:
Perspectives on developmental neurobiology
fascicolo: 3, volume: 3, anno: 1996,
pagine: 161 -
SICI:
1064-0517(1996)3:3<161:DOPMIT>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
GANGLION-CELL LAYER; RHESUS-MONKEY RETINA; EARLY-DIFFERENTIATING CONES; INNER PLEXIFORM LAYER; BLUE-SENSITIVE CONES; MOUSE RETINA; MACACA-NEMESTRINA; VISUAL PIGMENTS; MACAQUE RETINA; AREA CENTRALIS;
Keywords:
RETINA; PHOTORECEPTOR MOSAIC; MAPPING; PRIMATES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
80
Recensione:
Indirizzi per estratti:
Citazione:
K.C. Wikler e P. Rakic, "DEVELOPMENT OF PHOTORECEPTOR MOSAICS IN THE PRIMATE RETINA", Perspectives on developmental neurobiology, 3(3), 1996, pp. 161

Abstract

The mosaic of rods and cones in the primate retina is the neuronal array where the visual world is first mapped onto the central nervous system. Rods, which mediate scotopic vision, and cones, which mediate photopic and color vision, are found in all vertebrate species. However,regional differences in the topographic arrangement and ratio of rodsto cones vary dramatically among species, including different primates. Furthermore, the proportion and distribution of the wavelength-sensitive cone subtypes vary considerably between primates that occupy different visual habitats. What genetic or environmentally regulated mechanisms specify the position, phenotype, and ratios of photoreceptor subtypes? Available data suggest that the transient appearance of early-differentiating cones may serve to delineate basic species-specific retinal coordinates and determine the opsin phenotype of local assemblies of cones in the fetal photoreceptor mosaic. This article will summarize presently available data and our ideas of how the photoreceptor mosaic is organized in the adult primate retina, the features of these mosaics, which vary between primate species, and the developmental mechanisms, which may account for the emergence of photoreceptor position and specification of their phenotypes in the primate retina.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 03:33:28