STIMULATION IN THE RAT OF A NERVE-FIBER BUNDLE BY A SHORT UV PULSE FROM AN EXCIMER-LASER

被引：20

作者：

ALLEGRE, G

AVRILLIER, S

ALBEFESSARD, D

机构：

[1] UNIV PARIS 13,PHYS LASERS LAB,F-93430 VILLETANEUSE,FRANCE

[2] HOP PAUL GUIRAUD,EPHE,VILLEJUIF,FRANCE

[3] HOP PAUL GUIRAUD,NEUROPHYSIOL SERV 11,PSYCHOPHARMACOL LAB,VILLEJUIF,FRANCE

来源：

NEUROSCIENCE LETTERS | 1994年 / 180卷 / 02期

关键词：

UV PULSE; EXCIMER LASER; RAT; NERVE BUNDLE EXCITATION; THALAMIC RESPONSE; VENTRALIS POSTERIOR NUCLEUS; CUNEATE BUNDLE;

D O I：

10.1016/0304-3940(94)90534-7

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

A bundle of central nervous fibers was excited in the rat with a short pulse (40 ns) of UV light produced by an excimer laser. Evoked responses were recorded in the thalamic ventralis posterior nucleus after stimulation of the medial lemniscus or the cuneate bundle in the spinal cord. The effects of electrical and optical fiber applied UV stimulation were compared in both cases. Al threshold, the latency for the UV light stimulation was slightly longer than for electrical stimulation. The excitation threshold was 0.9 J/cm(2), very close to the UV photoablation threshold (order of 1 J/cm(2)). The intermediary events mediating the light excitation are discussed.

引用

页码：261 / 264

页数：4

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