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Titolo:
Relationship among plasma cortisol, catecholamines, neuropeptide Y, and human performance during exposure to uncontrollable stress
Autore:
Morgan, CA; Wang, S; Rasmusson, A; Hazlett, G; Anderson, G; Charney, DS;
Indirizzi:
Yale Univ, Sch Med, New Haven, CT USA Yale Univ New Haven CT USAYale Univ, Sch Med, New Haven, CT USA VA New England Healthcare Syst, Natl Ctr PTSD, W Haven, CT USA VA New England Healthcare Syst W Haven CT USA Ctr PTSD, W Haven, CT USA Psychol Applicat Directorate, Fort Bragg, NC USA Psychol Applicat Directorate Fort Bragg NC USA orate, Fort Bragg, NC USA
Titolo Testata:
PSYCHOSOMATIC MEDICINE
fascicolo: 3, volume: 63, anno: 2001,
pagine: 412 - 422
SICI:
0033-3174(200105/06)63:3<412:RAPCCN>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORTICOTROPIN-RELEASING FACTOR; PITUITARY-ADRENAL AXIS; DISORDER; NOREPINEPHRINE; AMYGDALA; HORMONE; RESPONSES; PTSD;
Keywords:
neuropeptide Y; cortisol; stress; military; performance; dissociation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Clinical Medicine
Life Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Morgan, CA Va Connecticut, 116A,950 Campbell Ave, W Haven, CT 06516 USA VaConnecticut 116A,950 Campbell Ave W Haven CT USA 06516 6 USA
Citazione:
C.A. Morgan et al., "Relationship among plasma cortisol, catecholamines, neuropeptide Y, and human performance during exposure to uncontrollable stress", PSYCHOS MED, 63(3), 2001, pp. 412-422

Abstract

Objective: Although many people are exposed to trauma, only some individuals develop posttraumatic stress disorder; most do not. it is possible that humans differ in the degree to which stress induces neurobiological perturbations of their threat response systems, which may result in a differentialcapacity to cope with aversive experiences. This study explored the idea that differences in the neurobiological responses of individuals exposed to threat are significantly related to psychological and behavioral indices. Methods: Individual differences in neurohormonal, psychological, and performance indices among 44 healthy subjects enrolled in US Army survival school were investigated, Subjects were examined before, during, and after exposure to uncontrollable stress. Results: Stress-induced release of cortisol, neuropeptide Y, and norepinephrine were positively correlated; cortisol release during stress accounted for 42% of the variance in neuropeptide Y release during stress. Cortisol also accounted for 22% of the variance in psychological symptoms of dissociation and 31% of the variance in military performance during stress, Conclusions: Because dissociation, abnormalities in thehypothalamic-pituitary-adrenocortical axis, and catecholamine functioning have all been implicated in the development of stress disorders such as posttraumatic stress disorder, these data suggest that some biological differences may exist before index trauma exposure and before the development of stress-related illness. The data also imply a relationship among specific neurobiological factors and psychological dissociation. In addition, the dataprovide clues about the way in which individuals' psychobiological responses to threat differ from one another.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 11:49:34