Twenty-eight captive Sichuan snub-nosed monkeys (Rhinopithecus roxellana) were involved in the current study. Many individuals showed handedness, with a modest tendency toward left-hand use especially for animate targets, although no group-level handedness was found. There was no significant gender difference in the direction and strength of hand preference for both targets. Females showed a significantly higher overall rate of actions toward animate targets than inanimate targets for both hands, whereas males displayed almost the reversed pattern. There were no significant interactions between lateral hand use and target animacy for either males or females. Most individuals showed rightward or leftward laterality shift trends between inanimate and animate targets. These findings to some extent support the existence of a potential trend concerning a categorical neural distinction between targets demanding functional manipulation (inanimate objects) and those demanding social manipulation (animate objects), even though specialized hand preference based on target animacy has not been fully established in this arboreal Old World monkey species. 相似文献
The Menstrual Distress Questionnaire (MDQ) is the most widely used method of assessing premenstrual symptomatology. It is
also the most frequently criticized instrument in this field. A review of the criticisms made toward the MDQ revealed three
major issues concerning the reliability and validity of this instrument and the sample from whom normative data were gathered.
These issues were examined in light of 49 studies that used this instrument between 1968 and 1990. Many of the criticisms
were found to be justified. A marked lack of adequate research into the MDQ’s reliability, problems associated with the normative
sample, and uncertain validity were found. In particular, the MDQ appears to measure constructs unrelated to the menstrual
cycle and define premenstrual syndrome inaccurately. In addition, the factor structure of this instrument may be unstable.
These conclusions were tempered with the knowledge that the MDQ has not been utilized to its full potential in most of the
research conducted to date. 相似文献
Although research into alcohol expectancies is reasonably well established, there is scant empirical evidence to directly relate such expectancies to the treatment of problem drinking. Consistent evidence from alcohol expectancy studies indicates that problem drinkers hold clusters of strongly positive beliefs regarding alcohol, in particular perceiving their drinking as a way of coping with specific skills deficits. However the precise relationship between such beliefs and treatment has not yet been established. The research developments needed to more fully elucidate the role that alcohol expectancies play in the treatment of problem drinking are discussed. 相似文献
Low family socioeconomic status (SES) is linked with adolescents’ symptoms of depression, but little is known about the mediating and moderating mechanisms underlying this association. Based on ecosystem theory and the organism-environment interaction model, we tested whether emotional resilience mediated the relationship between family SES and depressive symptoms, and whether parent–child relationship quality moderated the relationship. Adolescents (N?=?724) from one middle school in central China completed self-reported questionnaires regarding demographic variables, family SES, emotional resilience, parent–child relationship quality, and depressive symptoms. Regression-based mediation analysis indicated that emotional resilience mediated the association between family SES and depressive symptoms. Parent–child relationship quality moderated two components of this mediation process, namely the effects of low SES on both emotional resilience and depressive symptoms. In both cases, a high quality parent–child relationship ameliorated the adverse effects of low family SES. That is, adolescents with a higher quality relationship with their parent appeared to be less affected by low family SES. The study reveals how and when family SES may affect adolescents’ depressive symptoms, and highlights the protective effect of a high quality parent–child relationship in a low SES environment.