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[Influence of dispositional coping strategies on physical complaints and life satisfaction in the elderly].

Well-being and mental and physical health in old age are influenced in a significant way by the fact that it is possible to cope successfully with ongoing hazards, threats and problems. In recent years coping research has shown increasing interest in coping processes in the elderly. Most of the studies are focused on age-related differences in coping processes and on the issue of change or stability of coping in old age. However, the goal of our study was to examine the impact of dispositional coping strategies, conceptualized as consistent personality characteristics, on physical complaints and life satisfaction among the elderly. We recurred on the model of coping modes by Krohne, which postulates two statistically independent person-specific coping dimensions named "vigilance" and "cognitive avoidance". Based on this model it is possible to identify the "classical" coping styles of "sensitization" (high vigilance and low cognitive avoidance) and "repression" (low vigilance and high cognitive avoidance). In our study, including 766 subjects older than 60 years, we found a higher frequency of "repressors" than of "sensitizers". Results show that dispositional coping strategies are significant moderator variables of both physical complaints and life satisfaction: Older people who prefer a cognitive-avoidant coping strategy ("repressors") are more satisfied with their life and have less complaints than "sensitizers".

Adaptation, Psychological↗
PubMed1999

Facilitation of sexual behavior and enhanced dopamine efflux in the nucleus accumbens of male rats after D-amphetamine-induced behavioral sensitization.

Behavioral sensitization caused by repeated and intermittent administration of psychostimulants, such as cocaine and D-amphetamine, is accompanied by enhanced function in limbic-motor circuitry that is involved in the generation of motivated behavior. The present microdialysis study investigated the effect of D-amphetamine-induced sensitization on dopamine (DA) efflux in the nucleus accumbens (NAC) of male rats during sexual behavior. Male rats were given one injection of D-amphetamine (1.5 mg/kg, i.p.) or saline every other day for a total of 10 injections. Three weeks after discontinuation of drug treatment, rats were tested for sexual behavior during a test in which microdialysis was performed. There was an augmented efflux of DA in the NAC of D-amphetamine-sensitized rats compared with nonsensitized control rats when a receptive female was present behind a screen (35 vs 17%). Sensitized rats exhibited facilitated sexual behavior when the screen was removed, as indicated by a significantly shorter latency to mount and an overall increase in the amount of copulatory behavior. Although there was a significant increase in NAC DA concentrations from baseline in both sensitized and nonsensitized rats during copulation, there was a greater increase in DA efflux in the NAC of sensitized rats during the first 10 min copulatory sample (60 vs 37%). These results demonstrate that behavioral sensitization caused by repeated psychostimulant administration can "cross-sensitize" to a natural behavior, such as sex, and that increased NAC DA release may contribute to the facilitation of appetitive and consummatory aspects of this behavior.

Animals↗