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961.
When enumerating small sets of elements nonverbally, human infants often show a set‐size limitation whereby they are unable to represent sets larger than three elements. This finding has been interpreted as evidence that infants spontaneously represent small numbers with an object‐file system instead of an analog magnitude system ( Feigenson, Dehaene & Spelke, 2004 ). In contrast, non‐human animals and adult humans have been shown to rely on analog magnitudes for representing both small and large numbers ( Brannon & Terrace, 1998 ; Cantlon & Brannon, 2007 ; Cordes, Gelman, Gallistel & Whalen, 2001). Here we demonstrate that, like adults and non‐human animals, children as young as 3 years of age spontaneously employ analog magnitude representations to enumerate both small and large sets. Moreover, we show that children spontaneously attend to numerical value in lieu of cumulative surface area. These findings provide evidence of young children’s greater sensitivity to number relative to other quantities and demonstrate continuity in the process they spontaneously recruit to judge small and large values.  相似文献   
962.
This study explored awareness of risk factors for hereditary breast and ovarian cancer (HBOC), awareness, knowledge and concerns about genetic testing, and preference for how to have genetic testing recommended by a care provider among at-risk Hispanic women. Differences in these factors among Mexican, Cuban, and Puerto Rican women were also examined. Women with a personal or family history of breast or ovarian cancer from the Tampa Bay Area participated in a qualitative interview (N = 53). Data were analyzed using a combination of open and axial coding with a grounded theory approach. Study participants in all groups reported: being aware that family history was a breast cancer risk factor, limited knowledge of genetic testing, fear of test results, concerns about children’s risks, and no physician referral for genetic testing. Noteworthy sub-ethnic differences included preferences for physician recommendation and information about genetic testing. This study provides important preliminary information about areas related to HBOC that require additional education in the Hispanic community as a whole and by sub-ethnicity.  相似文献   
963.
Previous research demonstrates that exposure to ultra‐thin media models leads to increased body image concerns amongst women (Groesz, Levine, & Murnen, 2002 ). There is emerging evidence that attractive, average‐size models do not have this negative effect and can be effective in advertising (e.g. Halliwell & Dittmar, 2004 ). The present study investigates these factors amongst women with a history of eating disorders. Participants either viewed advertisements featuring ultra‐thin, average‐size or control images. Immediately after exposure, they reported their body‐focused anxiety and rated the effectiveness of the advertisements. Whereas exposure to ultra‐thin models did not lead to increased body‐focused anxiety, exposure to average‐size models produced a relief effect, whereby women reported lower levels of body‐focused anxiety. Advertisements featuring ultra‐thin and average‐size models were equally effective. The results suggest that average‐size, attractive models could be used effectively in advertising, which may help to relieve body image concerns amongst these women. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   
964.
965.
Purpose: To examine the roles of cognitive social maturity and life change events in a structural equation model (SEM) to explain adolescents' use of marijuana, tobacco, and alcohol. Methods: Data were derived from 1322 9th and 10th graders in a HIV prevention study. Students completed a survey of their cognitive social maturity, recent life events and substance use habits. A model from a study on the metabolic control of adolescents with diabetes was modified to apply to health risk behaviors. Results: A SEM was tested and fit the data well. Lower cognitive social maturity and greater life change events significantly predicted health risk behaviors. Life events partially mediated the relationship between cognitive social maturity and health risk behaviors. Conclusions: Adolescents' social thought processes are related to their recent life events, which in turn are related to their substance use behaviors. Suggestions are made for interventions to improve adolescents' cognitive social maturity.  相似文献   
966.
The authors designed this study to understand how adolescents overcome suicidality from the subjective perspective of 13 previously suicidal female participants. A resilience framework was used to conceptualize the process. Data analysis using basic interpretive qualitative inquiry revealed 4 domains of resilience: social processes, emotional processes, cognitive processes, and purposeful action. The domains were inextricably linked; improvements in 1 domain produced changes across others, adding momentum to the resilience process. Implications for practice are discussed.  相似文献   
967.
968.
The purpose of this study was to analyze the content of popular press articles about menstrual suppression, a relatively new and controversial health care option. Twenty-two American and Canadian articles, published before the FDA approval of Seasonale, were coded for basic information about and indications for menstrual suppression, viewpoints included, and coverage of risks and benefits. Menstrual suppression was most often recommended for women with menstrual disorders but was also recommended to menstruating women in general as a matter of convenience. Advocates of menstrual suppression were quoted twice as often as opponents. Monthly menstruation was frequently described as messy, inconvenient, bothersome, unhealthy, and unnecessary. From this analysis, we concluded that popular press coverage of menstrual suppression is insufficient and biased. The articles reflect and reinforce the taboo status and medicalization of menstruation. This coverage may have primed potential consumers to anticipate the FDA approval of Seasonale eagerly, to evaluate it uncritically, and to pursue it as a birth control and menstrual health option. Implications for research, health care providers, and menstrual activists are discussed.An earlier version of this paper was presented at the June 2003 meeting of the Society for Menstrual Cycle Research, Pittsburgh, PA.  相似文献   
969.
Sexual and gender minority (SGM) youth face marginalization and oppression on the basis of their SGM identity, and they often lack traditional support systems to deal with these minority stressors. SGM community resources may alleviate the impact of the stressors that SGM youth face, but these have not been studied in relation to the size and climate of SGM youth's communities. This mixed‐methods study examined the relationship between community size and the climate toward SGM individuals and the availability and utilization of SGM community resources. Survey findings indicate that nonmetropolitan communities were associated with less availability and utilization; hostile communities were associated with lower availability only. Interview findings reveal nuanced complexities on the relationship between community and resource provision. Implications for future research and community practice are discussed.  相似文献   
970.
The executive processes are well known to decline with age, and similar data also exists for attentional capacities and processing speed. Therefore, we investigated whether these two last nonexecutive variables would mediate the effect of age on executive functions (inhibition, shifting, updating, and dual-task coordination). We administered a large battery of executive, attentional and processing speed tasks to 104 young and 71 older people, and we performed mediation analyses with variables showing a significant age effect. All executive and processing speed measures showed age-related effects while only the visual scanning task performance (selective attention) was explained by age when controlled for gender and educational level. Regarding mediation analyses, visual scanning partially mediated the age effect on updating while processing speed partially mediated the age effect on shifting, updating and dual-task coordination. In a more exploratory way, inhibition was also found to partially mediate the effect of age on the three other executive functions. Attention did not greatly influence executive functioning in aging while, in agreement with the literature, processing speed seems to be a major mediator of the age effect on these processes. Interestingly, the global pattern of results seems also to indicate an influence of inhibition but further studies are needed to confirm the role of that variable as a mediator and its relative importance by comparison with processing speed.  相似文献   
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