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71.
The Trajectory of Concurrent Motor and Vocal Behaviors Over the Transition to Crawling in Infancy
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To document the trajectory of motor and vocal behaviors in real and developmental time, we observed infants at each of four biweekly naturalistic play sessions over the transition to crawling. An exhaustive and mutually exclusive coding scheme documented all vocalizations and postures. Odds ratios of the likelihood of a given posture‐vocalization dyad revealed that vocalization and crawling were significantly unlikely to co‐occur at the session marking the onset of crawling. We speculate that infants’ allocation of attention over the transition to crawling prompted behavioral trade‐offs. During mastery of a novel skill, infants may have had difficulty allocating attention to multiple tasks, but with experience, a decrease in attentional load for the new skill allowed performance of simultaneous behaviors in other domains to occur. 相似文献
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73.
Mike C. Parent Laurel R. Davis-Delano Elizabeth M. Morgan Nathaniel W. Woznicki Alisha Denson 《Gender Issues》2020,37(1):1-24
This study provides an analysis of the content of feminine and masculine characteristics/behaviors described in writing by 366 young women and 289 young men from the U.S. Emergent characteristics/behaviors were placed into domains. For both femininity and masculinity, the domains of “physical differences related to sex” and “emphasized physical differences” emerged. For masculinity, additional domains were: “activities and interests focused on the body,” “powerful or oriented toward power,” and “emotion-control or emotionally-limited.” For femininity, additional domains were “lacking power,” “orientation to other people,” and “emotional.” We then compared the characteristics/behaviors and domains we discovered to gender inventories that are commonly used in the contemporary period. The masculine domains focused on physical differences, activities, and interests that emerged from the present study are mostly absent from these masculinity inventories. The domains focused on power and restricted emotion are evident in these inventories, but these inventories do not cover all of the characteristics within our domains. The feminine domains that emerged from the present study are more often covered in these inventories, but some of the specific feminine characteristics we found are not evident in these inventories. Results are discussed in terms of gender role theory, gender inequality, and potential application for qualitative and quantitative inquiries into the construction of gender. 相似文献
74.
Exurban residential subdivision development: Effects on water quality and public perception 总被引:5,自引:1,他引:4
Nassauer Joan Iverson Allan J. David Johengen Thomas Kosek Sandra E. Infante Dana 《Urban Ecosystems》2004,7(3):267-281
We investigated how future alternative designs for exurban residential subdivision development in agricultural landscapes might affect aquatic ecosystems and public perceptions, and we asked whether better aquatic ecological quality would correspond with public perceptions of greater landscape attractiveness. The alternative exurban futures we compared were: ecologically beneficial subdivisions, conventional subdivisions, and conventional agriculture. To judge their aquatic ecology effects we measured the chemistry and biota of six first-order streams within our study area, the Huron and Raisin River watersheds in the Detroit CMSA. We chose two stream catchments that exhibited land cover to represent the same proportions as each of three types of alternative exurban futures. Streams in catchments representing ecologically beneficial subdivision designs had the most total macroinvertebrate taxa, the most sensitive macroinvertebrate taxa, lowest nitrates, lowest total phosphorus, and lowest total suspended materials. Nutrient concentrations were highest in agricultural catchments, and suspended sediments were highest in conventional subdivision catchments. To compare public perceptions of the alternative futures, we surveyed 336 suburban and exurban adult residents of the upper Midwest. All respondents viewed digital imaging simulations of each of the futures and rated their attractiveness as if they were seen from the window of a home in the area. Ecologically beneficial futures were perceived as most attractive. Comparing the alternative futures, rankings of aquatic ecological quality were consistent with public perceptions of attractiveness. 相似文献
75.
Laurel R. Davis-Delano Joseph P. Gone Stephanie A. Fryberg 《Race Ethnicity and Education》2020,23(5):613-633
ABSTRACT Approximately 2,000 teams in the U.S. utilize Native American mascots, the majority of which are associated with schools. Across the nation there continue to be many intense conflicts over these mascots. Most conflicts focus on differences in opinion, rather than on the effects of these mascots. The purpose of this article is to provide educational decision-makers with a comprehensive review of research on the psychosocial effects of Native American mascots. This body of research suggests that these mascots generate undesirable effects. First, they are psychologically detrimental to Native American students. Second, for non-Native persons, they are associated with negative stereotypes of Native Americans. Third, these mascots undermine intergroup relations by increasing negative stereotyping of Native Americans. Lastly, supporters of these mascots are more apt to believe prejudicial ideas. We discuss these findings relative to broader societal contexts. 相似文献
76.
Laurel Downey 《Australian and New Zealand Journal of Family Therapy》2001,22(3):129-136
This paper is a review of current ideas about intimacy and some ideas of my own about definitions of intimacy which come from a desire for respectful, egalitarian, lively and challenging relationships. I suspect that many current ideas about intimacy are overly influenced by the culture of romantic love, in which intimacy is portrayed as the warm, all encompassing feelings of unconditional love, where never a cross word is said. For me, intimacy includes all those feelings of closeness and warmth, but also those moments of brutal honesty, extreme anger, standing up for oneself and saying no. The myth that intimacy is easily obtained, and always pleasant, will be challenged in this paper. 相似文献
77.
Carpineto J Kubicek K Weiss G Iverson E Kipke MD 《Journal of LGBT Issues in Counseling》2008,2(1):53-80
Young men who have sex with men (YMSM) face myriad challenges when deciding to disclose their sexual orientation to family members. Key to this decision is consideration of how disclosure may influence the support they receive from family. This paper explores a diverse sample of YMSM's (N = 43) perspectives on disclosure of their same-sex attractions to key family members and its impact on family support. Several stages/categories of disclosure are described and some YMSM seemed to continue to move between categories. Additionally, relationships after disclosure included negotiations between the expression of their sexual orientation and the maintenance of family support. 相似文献
78.
Bayesian inference for categorical data analysis 总被引:1,自引:0,他引:1
This article surveys Bayesian methods for categorical data analysis, with primary emphasis on contingency table analysis.
Early innovations were proposed by Good (1953, 1956, 1965) for smoothing proportions in contingency tables and by Lindley
(1964) for inference about odds ratios. These approaches primarily used conjugate beta and Dirichlet priors. Altham (1969,
1971) presented Bayesian analogs of small-sample frequentist tests for 2 x 2 tables using such priors. An alternative approach
using normal priors for logits received considerable attention in the 1970s by Leonard and others (e.g., Leonard 1972). Adopted
usually in a hierarchical form, the logit-normal approach allows greater flexibility and scope for generalization. The 1970s
also saw considerable interest in loglinear modeling. The advent of modern computational methods since the mid-1980s has led
to a growing literature on fully Bayesian analyses with models for categorical data, with main emphasis on generalized linear
models such as logistic regression for binary and multi-category response variables. 相似文献
79.
When mothers engage in infant‐directed (ID) speech, their voices change in a number of characteristic ways, including adopting a higher overall pitch. Studies have examined these acoustical cues and have tested infants' preferences for ID speech. However, little is known about how these cues change with maternal sensitivity to infant feedback in the context of interaction. In this study, each mother watched her infant (located in an adjacent sound booth) on a video screen and talked to him or her through a microphone. The mother believed that her infant could hear her voice and she attempted to make her infant happy through her vocalizations. In reality, the infant could not hear her voice. The mother's ID speech was analyzed in real time for changes in mean pitch. For half of the infant–mother dyads an experimenter surreptitiously positively engaged the infant when the voice analysis revealed a rise in pitch, thereby producing positive reinforcement to the mother for natural higher pitched ID speech. The other half were reinforced for lower pitched ID speech. Mothers raised their pitch significantly more in the former than the latter condition, illustrating that the pitch of ID speech is dynamically affected by feedback from the infant. 相似文献
80.