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241.
Abstract This study investigates how the associations between self-reported health, stressful life events, and social relationships are mediated by genetic and environmental influences and how much of the variance in health is in common with variation in these psychosocial factors. The analyses are based on questionnaire data from 576 pairs of twins reared apart and twins reared together. The data revealed that for men environmental influences were solely important for variation in the psychosocial measures and were the primary mediators of the relationship with health. For women, on the other hand, a substantial portion of the variance in the psychosocial factors was due to genetic influences and these influences also contributed to the bulk of the correlations with health. The gender differences for the relationships and their mediation indicate that what should be regarded as a psychosocial factor of importance for health might differ between genders. 相似文献
242.
Joelle C. Ruthig Bridget L. Hanson Heather Pedersen Alyssa Weber Judith G. Chipperfield 《Psychology & health》2013,28(7):835-853
Prior research has established positive outcomes of health optimism (appraising one's health as good despite poor objective health (OH)) and negative outcomes of health pessimism (appraising health as poor despite good OH), yet little is known about their contributors. We examined the role of psychosocial factors (life event stress, depression, dispositional optimism, perceived social support) in health realism (appraising health in accordance with OH), optimism and pessimism among 489 older men and women. We then accounted for the psychosocial factors when examining multiple health correlates of health realism, optimism and pessimism. Controlling for age, gender and income, regression results indicate that depression and social support were associated with less health optimism, while dispositional optimism was associated with greater health optimism among those in poor OH. Dispositional optimism was associated with less health pessimism and life event stress was associated with greater pessimism among those in good OH. Beyond the effects of the psychosocial factors, structural equation model results indicate that health optimism was positively associated with healthy behaviours and perceived control over one's health; health pessimism was associated with poorer perceived health care management. Health optimism and pessimism have different psychosocial contributors and health correlates, validating the health congruence approach to later life well-being, health and survival. 相似文献
243.
Signe Holm Pedersen 《Scandinavian Psychoanalytic Review》2013,36(1):18-26
Peter Fonagy and Mary Target present their Playing with reality theory as a developmental theory centred on the concept of psychic reality. This paper compares Fonagy and Target's use of the concept of psychic reality with Freud's original concept. It is argued that the concept of psychic reality has been redefined from delineating a psychic reality stemming from the unconscious to denoting a kind of conscious or preconscious psychological reality characterized by an experience of equality between the internal and the external worlds. The theoretical discussion is illustrated by being applied to eating disorder pathology, which by Fonagy and colleagues is described as associated with thought processes characterized by psychic reality. 相似文献
244.
Objectives: This study compared results on cognitive tests measuring nonverbal visualization and reasoning, executive functions, and creativity between 36 boys with experience of living in the street and 31 housed yet socioeconomically equivalent boys, in Bolivia. Results: The street children scored significantly higher on the creativity measure, which is discussed in relation to contextual relevance. No significant differences were found on the other cognitive tests. Time elapsed after living in the street and drug use were strongly associated with cognition, while age was not. Both groups scored below average compared to Western norms. The results are discussed in terms of the cultural relevance of the tests and the impact of socioeconomic status, stress, and stimulation on cognition. 相似文献
245.
T. Vegge T. Rasmussen T. Leffers O.B. Pedersen K.W. Jacobsen 《Philosophical Magazine Letters》2013,93(3):137-144
We have performed atomic-scale simulations of cross-slip processes of screw dislocations in copper, simulating jog-free dislocations as well as different types of jogged screw dislocations. Minimum-energy paths and corresponding transition state energies are obtained using the nudged-elastic-band path technique. We find low barriers and effective masses for the conservative motion along the dislocations of elementary jogs on both ordinary {111}<110> and nonoctahedral {110}<110> slip systems. The jogs are found to be constricted and therefore effectively act as pre-existing constrictions; the cross-slip activation energy is thereby dramatically reduced, yielding values in agreement with experiment. 相似文献
246.
Wesley James Brian Griffiths Anne Pedersen 《The International journal for the psychology of religion》2013,23(3):212-227
Despite the growing international interest in the relation between religion and prejudice, there has been a dearth of studies conducted within Australia. We used the Faith Development Scale (FDS) to examine the relation between religious maturity and attitudes toward Muslims and toward gay men and lesbians in an Australian context using a sample of churchgoers from the Perth metropolitan area (N = 139). Respondents who scored lower on the FDS were more prejudiced toward both target groups than were high scorers. Furthermore, participants who scored lower on the FDS were more prejudiced against gay men and lesbians than they were against Muslim Australians. The FDS was a better predictor of attitudes toward the two groups than was the Quest Scale. Contrary to overseas studies, we found that religious fundamentalists held more prejudiced attitudes toward gay men and lesbians than toward those of a different religion (Australian Muslims). Right-wing political orientation was also found to be predictive of prejudice against Australian Muslims and against gay men and lesbians independently of religious development. Results suggest that religious maturity, as well as fundamentalism and right-wing political views, plays an important role in the “making” or “unmaking” of prejudice against Australian Muslims and against gay men and lesbians. Evidence is presented that suggests that the Quest Scale and the FDS are measuring different aspects of religious development. 相似文献
247.
Genetic Mediation of the Associations Among Motor and Perceptual Speed and Adult Cognitive Abilities
Deborah Finkel Nancy L. Pedersen Jennifer R. Harris 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(3):141-155
Quantitative genetic analyses were conducted to determine the genetic mediation of the associations among motor speed, perceptual speed, and cognitive abilities in normal aging. Measures of motor performance, perceptual speed, and cognitive functioning in four domains (crystallized, fluid, spatial, and memory) were available from the Swedish Adoption/Twin Study of Aging. The sample included 206 twin pairs ranging in age from 44 to 82 years. A Motor Speed factor was constructed from 17 timed measures of motor performance. Heritability of Motor Speed was .26 in middle-aged twins and .00 in older twins. Results indicated that genetic variance in cognitive functioning in the middle-aged cohort may be defined by working memory, whereas genetic variance in the older cohort was defined by perceptual speed. Indications of a nonshared environmental component in the association among motor speed, perceptual speed, and spatial abilities suggest possible frontal lobe involvement. 相似文献
248.
Academic self-concept is considered a relevant psychological construct influencing many educational outcomes directly or indirectly. Therefore, the major focus of the current study is on the predictors and effects of academic self-concept in late adolescence. First, we studied the simultaneous effects of individual, class-average and school-average achievement (i.e., assessed by school grades) on academic self-concept in the final year of high school, thereby replicating and extending previous research on the big-fish-little-pond effect model. Second, the predictive value of high school academic self-concept for academic adjustment and success in the first year of higher education was examined. The sample comprised 536 twelfth grade students (44% boys) recruited from 24 schools (67 classes) that were representative with regard to geographical region and educational network in Flanders. Structural equation modeling showed that, when examining the joint contribution of school- and class-average achievement, only class-average achievement was significantly and negatively associated with academic self-concept. Furthermore, a significant effect of academic self-concept in high school on academic adjustment and success in higher education (in addition to any effects of high school academic achievement) was found. These results highlight the importance of considering academic self-concept in educational research and policy. 相似文献
249.
250.
Sexual Strategies Theory (SST; Buss and Schmitt 1993) suggests that, typically, men more so than women are more likely to spend proportionately more of their mating effort in short-term mating, lower their standards in short-term compared to long-term mating, feel reproductively constrained, and seek, but certainly not avoid, sex if pregnancy is likely in short-term relationships. A series of 4 survey studies each containing hundreds of college student participants from the western portion of the United States were conducted to test these hypotheses. The findings are inconsistent with SST but are consistent with Attachment Fertility Theory (AFT; Miller et al. 2005) that argues for relatively few evolved gender differences in mating strategies and preferences. 相似文献