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Titolo:
Convergence of Y and non-Y channels onto single neurons in the superior colliculi of the cat
Autore:
Wang, C; Waleszczyk, WJ; Benedek, G; Burke, W; Dreher, B;
Indirizzi:
Univ Sydney, Inst Biomed Res, Sydney, NSW 2006, Australia Univ Sydney Sydney NSW Australia 2006 ed Res, Sydney, NSW 2006, Australia
Titolo Testata:
NEUROREPORT
fascicolo: 13, volume: 12, anno: 2001,
pagine: 2927 - 2933
SICI:
0959-4965(20010917)12:13<2927:COYANC>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECEPTIVE-FIELD PROPERTIES; OPTIC-NERVE FIBERS; STRIATE CORTEX; VISUAL-CORTEX; W-CELL; VELOCITY; CONDUCTION; PARALLEL; PATHWAYS; AREA-18;
Keywords:
directional selectivity; ocular dominance; relative magnitudes of visual responses; upper cut-off velocities;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Dreher, B Univ Sydney, Inst Biomed Res, Sydney, NSW 2006, Australia Univ Sydney Sydney NSW Australia 2006 dney, NSW 2006, Australia
Citazione:
C. Wang et al., "Convergence of Y and non-Y channels onto single neurons in the superior colliculi of the cat", NEUROREPORT, 12(13), 2001, pp. 2927-2933

Abstract

Receptive field properties of single neurons in the cat superior colliculus were examined following selective conduction-block of Y-type fibers in contralateral optic nerve. Although the responses evoked by photic stimuli presented via the Y-blocked eye were significantly weaker than those evoked by stimuli presented via the normal eye, > 85% of collicular cells were binocular. Furthermore, when binocular cells were stimulated via the Y-blocked eye their median upper cut-off velocity (100 degrees /s) was significantly lower than that (400 degrees /s) for stimuli presented via the normal eye. Thus, there is a substantial degree of excitatory convergence of Y- and non-Y-information channels on single collicular neurons and the responses to high velocity of motion appear to depend on the integrity of Y-type input. NeuroReport 12:2927-2933 (C) 2001 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/20 alle ore 22:07:29