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Titolo:
OPTICAL-RECORDING OF NEURAL SIGNALS EVOKED BY GREATER SUPERFICIAL PETROSAL NERVE-STIMULATION IN RAT
Autore:
YANAURA M; YAMADA S; SHIONO S; NAKASHIMA M;
Indirizzi:
MITSUBISHI ELECTR CORP,ADV TECHNOL R&D CTR,8-1-1 TSUKAGUCHI HONMACHI AMAGASAKI HYOGO 661 JAPAN
Titolo Testata:
Comparative biochemistry and physiology. Section A: Comparative physiology
fascicolo: 2, volume: 117, anno: 1997,
pagine: 183 - 190
SICI:
1095-6433(1997)117:2<183:OONSEB>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
GILL-WITHDRAWAL REFLEX; NEURONAL-ACTIVITY; SOFT PALATE; SYSTEM;
Keywords:
GENICULATE GANGLION; GREATER SUPERFICIAL PETROSAL NERVE; GUSTATORY SYSTEM; OPTICAL RECORDING; RAT; VOLTAGE SENSITIVE DYE; ELECTRICAL STIMULATION; CONDUCTION VELOCITY; IN VITRO PREPARATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
M. Yanaura et al., "OPTICAL-RECORDING OF NEURAL SIGNALS EVOKED BY GREATER SUPERFICIAL PETROSAL NERVE-STIMULATION IN RAT", Comparative biochemistry and physiology. Section A: Comparative physiology, 117(2), 1997, pp. 183-190

Abstract

Electrical responses to greater superficial petrosal (GSP) nerve stimulation in a rat geniculate ganglion (GG) preparation were assessed bysimultaneous multi-site optical recording. The GG/GSP nerve preparations were dissected out and were stained with a voltage-sensitive dye (RH155). Application of depolarizing square pulses to the GSP nerve fibers using a suction electrode evoked optical (absorbance) signals thatwere recorded simultaneously from many contiguous regions using a 24 x 24 photodiode matrix array with 448 active elements. Those optical signals were observed along the left half area of the GSP nerve. As thedistance from the site of stimulation increased, the optical signals appeared to conduct with increasing time-delay. From the relationship between the peak latency and distance, the conduction velocity was estimated to be about 0.4 m/s. Tetraethylammonium affected the duration of the optical signals, and the signals disappeared in solutions containing tetrodotoxin (TTX) or in Na+-deficient solutions. The optical signals evoked by the: GSP nerve stimulation are considered to be due to the action potentials propagating along the GSP of unmyelinated axons. (C) 1997 Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 02:11:30