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Titolo:
Effects of stress and relaxation on capsaicin-induced pain
Autore:
Logan, H; Lutgendorf, S; Rainville, P; Sheffield, D; Iverson, K; Lubaroff, D;
Indirizzi:
Univ Florida, Div Publ Hlth Serv & Res, Gainesville, FL 32610 USA Univ Florida Gainesville FL USA 32610 rv & Res, Gainesville, FL 32610 USA Univ Florida, Dept Med, Gainesville, FL 32610 USA Univ Florida Gainesville FL USA 32610 Dept Med, Gainesville, FL 32610 USA Univ Iowa, Dows Inst Dent Res, Dept Neurol, Dept Psychol, Iowa City, IA USA Univ Iowa Iowa City IA USA Dept Neurol, Dept Psychol, Iowa City, IA USA Univ Iowa, Dept Urol, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 Iowa, Dept Urol, Iowa City, IA 52242 USA Univ Iowa, Dept Microbiol, Iowa City, IA 52242 USA Univ Iowa Iowa City IAUSA 52242 Dept Microbiol, Iowa City, IA 52242 USA
Titolo Testata:
JOURNAL OF PAIN
fascicolo: 3, volume: 2, anno: 2001,
pagine: 160 - 170
SICI:
1526-5900(200106)2:3<160:EOSARO>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARDIOVASCULAR REACTIVITY; SEX-DIFFERENCES; NEUROGENIC HYPERALGESIA; HYPNOTIC ANALGESIA; GENDER DIFFERENCES; BLOOD-PRESSURE; SENSORY FOCUS; SPINAL-CORD; ANXIETY; SENSITIVITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
60
Recensione:
Indirizzi per estratti:
Indirizzo: Logan, H Univ Florida, Div Publ Hlth Serv & Res, Box 100404, Gainesville, FL 32610 USA Univ Florida Box 100404 Gainesville FL USA 32610 le, FL 32610 USA
Citazione:
H. Logan et al., "Effects of stress and relaxation on capsaicin-induced pain", J PAIN, 2(3), 2001, pp. 160-170

Abstract

A sizable body of research has been devoted to understanding the relationship between pain sensitivity and the psychological state of the individual. Considerable disagreement as to the direction of the association still exists. This study examines the effects of 2 experimental manipulations, cognitive/emotional stress and relaxation, on capsaicin-induced pain. Subjects were pretrained in relaxation and then randomized to experimental stress produced by a 20-minute Stroop test, relaxation (tape). or a control condition(neutral video), followed by a capsaicin injection in the forearm. Cardiovascular measures were taken at regular intervals, and cortisol, norepinephrine (NE), and self-reports of arousal (relaxation index) were taken immediately before and after the experimental task. The manipulation significantlyinteracted with sex to predict capsaicin-induced maximum pain. Women in the stress condition reported greater pain than both men in the stress condition and women in the relaxation condition. Pain was correlated negatively with task-induced changes in NE and cortisol and positively with self-reported arousal (decreased relaxation). However, separate analyses showed that some physiologic indexes of heightened arousal (increased blood pressure andNE) predicted lower pain only in men, whereas subjective increases in arousal predicted higher pain only in women. Multiple hierarchical regression analyses confirmed that physiologic and self-reported arousal predicted painindependently and in opposite directions, and a model including both accounted for 56% of the overall variance. These findings suggest that a unidimensional model of arousal may be insufficient to explain the effects of stress on pain and that these effects operate differently in men and women. (C)2001 by the American Pain Society.

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Documento generato il 25/01/20 alle ore 10:22:05