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61.
Two studies were conducted to investigate the existence of an unusual U-shaped developmental function described by Wishart et al (1978) for human infants reaching towards invisible sounds. In study 1, 2-7 month olds were presented with four conditions: (i) an invisible auditory stimulus alone, (ii) a glowing visual stimulus alone, (iii) auditory and visual stimuli on the same side (ie combined), and (iv) auditory and visual stimuli on opposite sides (ie in conflict). Study 2 was designed to examine the effects of practice and possible associations made when using the 'combined conflict' paradigm. Infants of 5 and 7 months of age were given five trials with the auditory stimulus, with or without prior visual experience, and five trials with the visual stimulus, with the position of the stimulus varied on each trial. Stimuli were presented individually at the midline, and +/- 30 and +/- 60 degrees from the midline. In both studies testing was conducted in complete darkness. Results indicated that the auditory-alone condition was slower to elicit a reach from the infants, relative to the visual-alone one, and reaches were least frequent to the auditory target. No U-shaped function was obtained, and reaching for auditory targets occurred later in age than for visual targets, but even at 7 months of age did not occur as often and was achieved by fewer infants. In both studies the quality of the reach was significantly poorer to auditory than to visual targets, but there were some accurate reaches. This research adds to our understanding of the development of auditory-manual coordination in sighted infants and is relevant to theories of auditory localization, visually guided reaching, and programming for the blind. 相似文献
62.
Stack S 《Suicide & life-threatening behavior》2000,30(2):145-162
Cultural and economic patterns from 130 sociological works on suicide from 1981 to 1995 are reviewed in this article. The traditional Durkheimian perspective on suicide was often questioned by research on the impact of the mass media, alcohol, class, modernization, religion, and politics. Major theoretical developments included the application of differential identification theory to Phillips's model of copycat suicide, the application of criminology's opportunity theory to suicide, and new explanations for the link between alcohol and the social suicide rate. Explanations are reviewed for the major new suicide trend: after half a century of convergence, male and female suicide rates are diverging. Finally, the review notes patterns of continued stability in suicide research findings in areas such as racial differences and economic strain. 相似文献
63.
This study tests the thesis that the internalization of the traits associated with astrological signs affects suicide ideation. Data are from a national sample (N = 7,508). Only the most negativistic sign of Pisces was significantly associated with suicide ideation. 相似文献
64.
Tara J. Schmidlen Laura Scheinfeldt Ruixue Zhaoyang Rachel Kasper Kevin Sweet Erynn S. Gordon Margaret Keller Cathy Stack Neda Gharani Mary B. Daly Joseph Jarvis Michael F. Christman 《Journal of genetic counseling》2016,25(2):385-394
Genetic literacy is essential for the effective integration of genomic information into healthcare; yet few recent studies have been conducted to assess the current state of this knowledge base. Participants in the Coriell Personalized Medicine Collaborative (CPMC), a prospective study assessing the impact of personalized genetic risk reports for complex diseases and drug response on behavior and health outcomes, completed genetic knowledge questionnaires and other surveys through an online portal. To assess the association between genetic knowledge and genetic education background, multivariate linear regression was performed. 4 062 participants completed a genetic knowledge and genetic education background questionnaire. Most were older (mean age: 50), Caucasian (90 %), female (59 %), highly educated (69 % bachelor’s or higher), with annual household income over $100 000 (49 %). Mean percent correct was 76 %. Controlling for demographics revealed that health care providers, participants previously exposed to genetics, and participants with ‘better than most’ self-rated knowledge were significantly more likely to have a higher knowledge score (p?<?0.001). Overall, genetic knowledge was high with previous genetic education experience predictive of higher genetic knowledge score. Education is likely to improve genetic literacy, an important component to expanded use of genomics in personalized medicine. 相似文献
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Lisa Campisi Lisa A. Serbin Dale M. Stack Alex E. Schwartzman Jane E. Ledingham 《Infant and child development》2009,18(5):377-403
The current investigation examined whether inter‐generational transfer of risk could be revealed through mothers' and preschool‐aged children's expressive language, and whether continuity of risk persisted in these children's academic abilities, 3 years later. Participating families were drawn from the Concordia Longitudinal Risk Project, a prospective, longitudinal investigation of French‐speaking families from low‐SES Montreal neighbourhoods. At Time 1, mothers' history of childhood social withdrawal was shown to predict mothers' child‐directed language. Mothers' language complexity was also shown to be predictive of preschoolers' expressive language and was found to mediate the relationship between maternal social withdrawal and child language. At Time 2, children's language‐related academic abilities were predicted by their expressive language at preschool age. The findings support an inter‐generational continuity of risk operating through language complexity and extending to children's performance in language‐related academic abilities at school age. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
67.
Sociological analyses of suicide have often neglected female suicide rates. Three competing explanations are tested to determine why the suicide rates of married women are, typically, lower than the suicide rates of women who are not married: (1) marital status integration, (2) societal integration, and (3) a nation's normative order about disapproval of suicide. Data refer to age and marital status-specific female suicide rates from 12 developed countries. The results provide the strongest support for the marital status integration theory and consistent support for the social integration perspective. There is also mixed support for the cultural disapproval of suicide hypothesis. 相似文献
68.
Dahlia Ben‐Dat Fisher Lisa A. Serbin Dale M. Stack Paula L. Ruttle Jane E. Ledingham Alex E. Schwartzman 《Infant and child development》2007,16(2):151-170
The present study examined potential intergenerational links that may contribute to atypical patterns of diurnal cortisol secretion in early childhood. Salivary cortisol samples were collected across 1 waking day in 36 pre‐school children whose mothers are participants in an ongoing longitudinal project. Hierarchical Linear Modeling (HLM) identified statistically significant predictors of individual differences in daily cortisol trajectories. Children displayed relatively low post‐awakening values and flatter cortisol trajectories across the day as a function of unsupportive maternal behaviour, second‐hand smoke and maternal histories of social withdrawal in childhood. These results suggest that individual differences in young children's pattern of diurnal cortisol are associated with a variety of current and historical maternal characteristics and behaviours. The identification of intergenerational predictors of children's diurnal neuroendocrine functioning may provide new insights into the transfer of health and developmental risk from parent to child. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
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