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Titolo:
DARK-REARING FAILS TO AFFECT THE BASAL DENDRITIC FIELDS OF LAYER-3 PYRAMIDAL CELLS IN THE KITTENS VISUAL-CORTEX
Autore:
TIEMAN SB; ZEC N; TIEMAN DG;
Indirizzi:
SUNY ALBANY,DEPT BIOL SCI,1400 WASHINGTON AVE ALBANY NY 12222 SUNY ALBANY,NEUROBIOL RES CTR ALBANY NY 12222
Titolo Testata:
Developmental brain research
fascicolo: 1, volume: 84, anno: 1995,
pagine: 39 - 45
SICI:
0165-3806(1995)84:1<39:DFTATB>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL GENICULATE-NUCLEUS; ORIENTATION SENSITIVITY; MONOCULAR DEPRIVATION; TEMPORAL SENSITIVITY; OCCIPITAL CORTEX; CORTICAL-CELLS; STRIATE CORTEX; MAUTHNER CELL; REARED CATS; NEURONS;
Keywords:
CAT; DENDRITE; DENDRITIC MORPHOLOGY; DEPRIVATION; DEVELOPMENT; GOLGI METHOD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
45
Recensione:
Indirizzi per estratti:
Citazione:
S.B. Tieman et al., "DARK-REARING FAILS TO AFFECT THE BASAL DENDRITIC FIELDS OF LAYER-3 PYRAMIDAL CELLS IN THE KITTENS VISUAL-CORTEX", Developmental brain research, 84(1), 1995, pp. 39-45

Abstract

The development of the cat's visual cortex is incomplete at birth andis influenced by the cat's early visual experience. We have previously demonstrated that the basal dendritic fields of layer 3 pyramidal cells grow substantially during the first 5 weeks after birth and that stripe-rearing affects their orientation. In this paper we determined the effects on these dendritic fields of visual deprivation (dark-rearing) during the first 3 months of life. The visual cortices of both normally reared and dark-reared cats were impregnated by the Golgi method, sectioned in the tangential plane and counterstained. The basal dendritic fields of completely impregnated pyramidal cells from layer 3 were drawn with the aid of a camera lucida, and compared in terms of number and length of primary dendrites, branching, size, elongation, and distribution of dendritic field orientations. Surprisingly, we observed no significant differences in any parameter measured. Thus, althoughstripe-rearing can specifically alter the orientation of the dendritic fields of the layer 3 pyramidal cells, and dark-rearing has been shown by others to alter the size of layer 4 stellate cells, dark-rearingfailed to affect the dendritic fields of layer 3 pyramidal cells.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 19:12:19