Repressive defensive coping, endogenous opioids and health: how a life so perfect can make you sick

Author(s): Leigh, H.

Journal/Book: Psychiat Res. 1999; 85: Customer Relations Manager Bay 15, Shannon Industrial Estate CO, Clare, Ireland. Elsevier Sci Ireland Ltd. 17-31.

Abstract: Hyperactivity of endogenous opioid systems has been postulated to mediate the associations between defensive/repressive coping styles, enhanced stress responsivity, and reduced immunocompetence. Study 1 examined whether repressive/defensive coping would be associated with greater sensitivity to opioid antagonism. Judgments of the painfulness of ascending series of electrocutaneous stimulation applied to the forearm were determined before and after the administration of naloxone and placebo in 38 men and 42 women. All subjects were healthy with a mean age of 32.9 years. Naloxone (10 mg i.v.) and placebo were administered in double-blind fashion and counterbalanced. Subjects were classified as High- and Low-defensive and repressive copers on the basis of scores on the Marlowe-Crowne Social Desirability Scale and the Balanced Inventory of Desirable Responding, respectively. High Self-Deception was associated with naloxone-induced hyperalgesia, whereas no effects of naloxone on pain ratings were observed in low-Self-Deceptive subjects. In Study 2, resting plasma beta-endorphin levels were found to be positively correlated with defensiveness in men (n = 26), but not women (n = 44). Study 3 examined 82 healthy subjects (mean age = 28.7 years). Beta-Endorphin/defensiveness correlations were found to be greater following, compared to prior to, electrical nociceptive stimulation in men (n = 49), but unrelated in women (n = 33). These findings are consistent with the hypothesized endorphinergic dysregulation associated with repressive/defensive coping styles and are discussed in terms of the immune-regulatory implications of such a dysregulation.

Note: Article Jamner LD, Univ Calif Irvine, Dept Psychol & Social Behav, 3340 Social Ecol 2, Irvine,CA 92697 USA

Keyword(s): repressive coping; defensiveness; emotion; naloxone; beta-endorphin; immune function; AMBULATORY BLOOD-PRESSURE; INDIVIDUAL-DIFFERENCES; CYNICAL HOSTILITY; PAIN PERCEPTION; BETA-ENDORPHIN; STRESS; REACTIVITY; RESPONSES; ANXIETY; RECALL

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