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31.
Foraging in a simulated natural environment: There's a rat loose in the lab 总被引:1,自引:2,他引:1
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Mellgren RL 《Journal of the experimental analysis of behavior》1982,38(1):93-100
Rats were required to earn their food in a large room having nine boxes placed in it, each of which contained food buried in sand. In different phases of the experiment the amount of time allowed for foraging, the amount of food available in each food patch, and the location of the different available amounts were varied. The rats exhaustively sampled all patches each session but seemed to have fairly strong preferences for certain locations over others. If position preferences were for patches containing small amounts of food, the sensitivity to amount available was increased so that when location was compensated for, a pattern of optimal foraging was evident. The importance of environmental constraints in producing optimal behavior and the relation of the observed behavior to laboratory findings are discussed. 相似文献
32.
The paper reports a study of participatory experiences among members of power-based community organizations. A path model of psychological empowerment was tested. Perceived relational characteristics of the community organization were hypothesized as exogenous to participation, perceived organizational power and psychological empowerment. An alternative model was reproduced with the strongest relationships between perceived organizational intimacy and psychological empowerment and an inverse relationship between perceived organizational regulation and perceptions of organizational power. 相似文献
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34.
Massage techniques and postural manipulation used by West African women immigrants in Paris were studied, with the aim of demonstrating that culturally regulated caretaking practices have an influence on infant motor development. Twenty-five infants were observed between the ages of 3 and 12 months and 9 and 15 months. Frequency of massage and its accompanying set of physical exercises were found to be related to age at onset of independent walking. The findings show that infants receiving daily massage walk significantly earlier than infants who do not receive massage, thus confirming other reports that vestibular and postural stimulation have a positive effect on motor development. These results are discussed in relation to the observed frequencey of contact and of physical games with the caregiver for a smaller sample of three infants, and to parental expectations about the age of acquisition of certain cognitive and motor abilities. African immigrant mothers expect their infants to sit and to walk earlier than French mothers. The conclusion emphasizes the contribution of social anthropology, which shows that in all cultures, physical development and body changes elicit symbolic practices and a search for explanation. 相似文献
35.
Two studies using novel extensions of the conditioned head-turning method examined contributions of rhythmic and distributional properties of syllable strings to 8-month-old infants' speech segmentation. The two techniques introduced exploit fundamental, but complementary, properties of representational units. The first involved assessment of discriminative response maintenance when simple training stimuli were embedded in more complex speech contexts; the second involved measurement of infants' latencies in detecting extraneous signals superimposed on speech stimuli. A complex pattern of results is predicted if infants succeed in grouping syllables into higher-order units. Across the two studies, the predicted pattern of results emerged, indicating that rhythmic properties of speech play an important role in guiding infants toward potential linguistically relevant units and simultaneously demonstrating that the techniques proposed here provide valid, converging measures of infants' auditory representational units. 相似文献
36.
Sarah Stewart‐Kroeker 《The Journal of religious ethics》2019,47(4):790-817
This essay discusses five recent books, written in French, that contribute to refection in environmental ethics. Francophone literature on the topic is marked by resonant and divergent concerns, and rooted in a geography, politics, and history different from North America and marked by distinctive lines of intellectual influence. Jean‐Claude Eslin proposes recovering ecological resources from the Christian tradition and also suggests imagining new images of God: notably, God as pilote rather than artisan. Dominique Bourg takes a multi‐disciplinary approach that emphasizes the spiritual conditions for relating to the world ecologically and economically; he argues for sobriété (austerity) as a spiritual disposition and an economic model. Baptiste Morizot develops diplomacy as an ethical, political, and spiritual model for cohabiting with wolves, whose return to the French countryside has been highly controversial. Nastassja Martin offers an anthropological study of the indigenous Gwich’in community of Fort Yukon, Alaska that accentuates the mix of Protestant missional influences and Gwich’in spiritual affirmations and practices at play in their relationship to the nonhuman world. Attending to this literature may helpfully decenter anglophone debates and enrich their conceptual vocabulary. 相似文献
37.
Kenneth T. Wang Austin M. Johnson Yanmei Cao Li Zhang Allison Parsley 《Journal of Beliefs & Values》2019,40(1):104-121
The Attitudes Toward Religion Scale (ATRS) was developed to access the level of interest in and position toward the five state-approved religions in China. Data were analysed across two samples of Chinese college students. With Sample 1 (N = 278), exploratory factor analyses were used to select the 10 ATRS items corresponding to two factors: Interest and Position. With Sample 2, confirmatory factor analyses (N = 270) cross-validated the two-factor oblique model as well as a bifactor model. Cronbach alphas of ATRS subscale scores in the two samples ranged from .75 to .85. ATRS-Interest and Position were both positively associated with number of close relationships with religious people. In addition, negative attitudes toward religion was associated with being religiously proselytised by strangers. Moreover, female students reported more favourable attitudes toward religion compared to their male counterparts. The overall results support ATRS as a psychometrically strong and promising measure. 相似文献
38.
5──8岁儿童对几种偏正复句的理解 总被引:3,自引:2,他引:3
本研究用三种方式测试80名5—8岁儿童对因果、条件和让步三种复句的理解。结果表明,他们对这三种复句的理解逐年提高,6岁和7岁之间的变化尤为明显。6岁儿童基本能理解因果复句和条件复句,7岁儿童基本能理解让步复句。他们在三种作业中表现出不同的理解水平,判断句子正误的成绩差于完成句子和指认代词所指的成绩。 相似文献
39.
This study examined relationships among personality traits, ego development, and volunteering among retired seniors who were current, former, and new volunteers. Volunteer history, but not extensiveness of volunteer experience, was associated with higher ego development. Current volunteers had higher levels of ego development than former and new volunteers, and former volunteers had higher levels than new volunteers. Openness to experience and ego development were positively associated. Results of multiple-regression analyses indicated that openness and volunteering history and extensiveness positively predicted ego development. This study supported the hypothesis that ego development is related to volunteering and suggests that participation in volunteer work promotes ego development. 相似文献
40.
Lisa R. Jackson 《Journal of Adult Development》1998,5(3):171-182
Using Black feminist thought and the sociocultural model of the self, this paper explores the relationship between race and gender in the self-definitions of African American women attending predominately white colleges and universities. The African American women who participated in the study, suggest that knowledge generated about the self pushes us beyond the categorical thinking that limits our ability to understand the complexity of the self. Data from 13 interviews conducted at two predominately white schools is presented and analyzed. Using this data, I present a way of thinking about the identity of African American women that demonstrates the complexity of defining self within the narrow confines of race and gender. 相似文献