Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
ELECTROPHYSIOLOGICAL AND PSYCHOPHYSICAL QUANTIFICATION OF TEMPORAL SUMMATION IN THE HUMAN NOCICEPTIVE SYSTEM
Autore:
ARENDTNIELSEN L; BRENNUM J; SINDRUP S; BAK P;
Indirizzi:
AALBORG UNIV,DEPT MED INFORMAT,EXPTL PAIN RES LAB,FREDRIK BAJERS VEJ 7D DK-9220 AALBORG DENMARK GENTOFTE UNIV HOSP,DEPT NEUROL HELLERUP DENMARK ODENSE UNIV,DEPT CLIN PHARMACOL DK-5230 ODENSE DENMARK
Titolo Testata:
European journal of applied physiology and occupational physiology
fascicolo: 3, volume: 68, anno: 1994,
pagine: 266 - 273
SICI:
0301-5548(1994)68:3<266:EAPQOT>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXTEROCEPTIVE SUPPRESSION; PAIN SENSATION; A-FIBER; MORPHINE; REFLEXES; STIMULATION; HEAT; MUSCLE;
Keywords:
REFLEXES; WITHDRAWAL; PAIN; TEMPORAL SUMMATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
L. Arendtnielsen et al., "ELECTROPHYSIOLOGICAL AND PSYCHOPHYSICAL QUANTIFICATION OF TEMPORAL SUMMATION IN THE HUMAN NOCICEPTIVE SYSTEM", European journal of applied physiology and occupational physiology, 68(3), 1994, pp. 266-273

Abstract

Animal experiments have shown that the nociceptive reflex can be usedas an indicator of central temporal integration in the nociceptive system. The aim of the present study on humans was to investigate whether the nociceptive reflex, evoked by repetitive strong electrical suralnerve stimuli, increased when summation was reported by the volunteers. The reflexes were recorded from the biceps femoris and rectus femoris muscles in eight volunteers following a series of stimulations at 0.1, 1, 2, and 3 Hz. Each series consisted of five consecutive stimuli. Using 0.1- and 1-Hz stimulation, the reflex was not facilitated in the course of the five consecutive stimuli. Following 2- and 3-Hz stimulation, the reflex size (root mean square amplitude) increased significantly during the course of the fifth stimulus. This reflex facilitation was followed by a significant increase (summation) in the pain magnitude when compared with 1- and 0.1-Hz stimulation. Furthermore, the threshold for psychophysical summation could be determined. This threshold (stimulus intensity) decreased when the stimulus frequency (1-5 Hz)of the five consecutive stimuli was increased. The nociceptive reflexand the psychophysical summation threshold might be used to clarify and quantify aspects of temporal summation within the human nociceptivesystem.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 20:15:05