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Titolo:
Inhibitory synapse cover on the somata of excitatory neurons in macaque monkey visual cortex
Autore:
Lund, JS; Griffiths, S; Rumberger, A; Levitt, JB;
Indirizzi:
Univ Utah, Dept Ophthalmol, John A Moran Eye Ctr, Salt Lake City, UT 84132USA Univ Utah Salt Lake City UT USA 84132 ye Ctr, Salt Lake City, UT 84132USA Inst Ophthalmol, Dept Visual Sci, London EC1V 9EL, England Inst Ophthalmol London England EC1V 9EL al Sci, London EC1V 9EL, England CUNY City Coll, Dept Biol, New York, NY 10031 USA CUNY City Coll New YorkNY USA 10031 l, Dept Biol, New York, NY 10031 USA
Titolo Testata:
CEREBRAL CORTEX
fascicolo: 9, volume: 11, anno: 2001,
pagine: 783 - 795
SICI:
1047-3211(200109)11:9<783:ISCOTS>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
LOCAL CIRCUIT NEURONS; STRIATE CORTEX; CORTICOTHALAMIC CELLS; CEREBRAL-CORTEX; MEYNERT CELLS; AREA 17; ORGANIZATION; AFFERENT; PATTERNS; NUMBER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Lund, JS Univ Utah, Dept Ophthalmol, John A Moran Eye Ctr, 50 Univ Hlth Dr, Salt Lake City, UT 84132 USA Univ Utah 50 Univ Hlth Dr Salt Lake City UT USA 84132 T 84132 USA
Citazione:
J.S. Lund et al., "Inhibitory synapse cover on the somata of excitatory neurons in macaque monkey visual cortex", CEREB CORT, 11(9), 2001, pp. 783-795

Abstract

Electron microscopy was used in macaque monkey cortical area V1 to investigate what factors might determine the proportion of somatic membrane covered by inhibitory type 2 synapses. In a sample of 4654 excitatory neurons, synapse cover did not correlate consistently with cell variety (pyramid or spiny stellate), soma size, synaptic apposition length or thalamic input. There were significant differences in somatic synapse cover per layer, but thepattern of differences in cover among layers differed significantly between animals, suggesting that laminar environment alone is not a generally applicable determinant of amount of inhibitory synapse cover. The pattern of cover for cells in different layers was, however, similar between the two hemispheres of an individual monkey. Measures of inhibitory synapse cover on four sets of pyramidal neurons in layers 5 and 6, each with different efferent projection targets, showed that the sets differed significantly from other cells in their respective layers, and differed significantly from each other. These findings demonstrate that there is unique circuitry for different subsystems within single layers of cortex and provide a rationale for the rich variety of cortical GABAergic interneurons within single layers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 13:05:17