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Adam Rutland Lindsey Cameron Philipp Jugert Dennis Nigbur Rupert Brown Charles Watters Rosa Hossain Anick Landau Dominique Le Touze 《The British journal of developmental psychology》2012,30(2):283-302
This research examined whether peer relationships amongst ethnic minority status children reflect the social groups to which children belong and the degree to which they identify with these groups. A longitudinal study was conducted to investigate the influence of group identities (i.e., ethnic and national) on children's perceived peer acceptance and preference for same‐ethnic friendships. Measures of ethnic and English identification, perceived peer acceptance, and friendship choice were administered to 207 south‐Asian English children, aged between 5 and 11, at two time points 6 months apart. In line with predictions, longitudinal analysis showed that bicultural identification (i.e., higher ethnic and English identity) was related to higher perceived peer acceptance and less preference for same‐ethnic friendships. Importantly, as hypothesized, this finding was limited to the older children with more advanced social‐cognitive abilities. The results suggest that older children who adopted a bicultural identity were able to strategically ‘flag’ their multiple group identities, within their multicultural peer groups, to obtain acceptance amongst the maximum number of peers and show less preference for same‐ethnic friendships. This study extends previous peer relations research, which has typically focused on individual social deficits or classroom norms, by showing that group identities influence peer relationships amongst ethnic minority status children. 相似文献
544.
Contribution of somesthetic information to the perception of body orientation in the pitch dimension
Lionel Bringoux Vincent Nougier Ludovic Marin Pierre-Alain Barraud Christian Raphel 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2003,56(5):909-923
This study investigated the contribution of otolithic and somesthetic inputs in the perception of body orientation when pitching at very slow velocities. In Experiment 1, the subjects' task was to indicate their subjective postural vertical, in two different conditions of body restriction, starting from different angles of body tilt. In the "strapped" condition, subjects were attached onto a platform by means of large straps. In the "body cast" condition, subjects were completely immobilized in a depressurized system, which attenuates gravity-based somesthetic cues. Results showed that the condition of body restriction and the initial tilt largely influenced the subjective postural vertical. In Experiment 2, subjects were displaced from a vertical position and had to detect the direction of body tilts. Results showed that the threshold for the perception of body tilt was higher when subjects were immobilized in the body cast and when they were tilted backward. Experiment 3 replicated the same protocol from a supine starting position. Compared to results of Experiment 2, the threshold for the perception of body tilt decreased significantly. Overall, these data suggested that gravity-based somesthetic cues are more informative than otolithic cues for the perception of a quasi-static body orientation. 相似文献
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M. E. Le Pelley I. P. L. McLaren 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》2001,54(4):311-352
The phenomenon of retrospective revaluation has posed considerable problems for many associative learning theories as it involves a change in the associative strength of a cue on trials on which that cue is absent. The present series of experiments pursues this idea of changes in associative strength between evoked representations of cues, in an effort to establish, de novo, an excitatory connection between two cues simultaneously activated in memory. Given the finding of Dwyer, Mackintosh, and Boakes (1998) that simultaneous activation of absent cues in the memory of rats resulted in learning comparable to that seen inretrospective revaluation, we expected that if retrospective revaluation was found in humans, then excitatory learning due to simultaneous activation would also be seen. This was not the case. The implications of our results are discussed in terms of Dickinson and Burke's (1996) modified SOP model and a version of McLaren's (1993) APECS network. We conclude that many of the effects attributed to learning in retrospective revaluation studies are better thought of as due to changes in the retrievability of items in memory. 相似文献
547.
Sylvie Le Poulichet 《Scandinavian Psychoanalytic Review》2019,42(1-2):36-43
ABSTRACTFocusing on the analysis of a clinical case, this article studies the manner in which certain traumatic events can induce some individuals to produce auto-traumatic processes. In parallel, it demonstrates how the foundations of a subject’s origins can, at an early stage, find themselves undermined by an environment that does not recognise the subject, and that sends out messages that seem to exclude him or her from their filiation. What can follow is a partial breakdown in the ideation of origins that leads some individuals to create a personal myth of birth. This myth, that borrows some elements from collective myths, can to some extent substitute itself for the representation of filiation. This process will be differentiated here from delusional phenomena, or the ‘sexual theories of children’. This article also demonstrates the important role of the analysis of ‘anxiety dreams’ in these traumatic configurations: this analysis has the power to bring to light the different conflicting elements with which the ego identifies, so as to put an end to the auto-traumatic process, as well as giving clues for lifting the amnesia regarding a childhood personal myth of birth. Under these conditions ‘acts of birth’ can become inscribed into the analysis. 相似文献
548.
为了解某高校教职工恶性肿瘤发病情况与流行特征,分析2009年~2012年恶性肿瘤报告资料,计算发病率、标化发病率、标准截缩率、累积率等指标.结果四年教职工恶性肿瘤平均发病率 308.9/10万,标化发病率222.3/10万.男性以肺癌、结直肠癌、前列腺癌、胃癌、肝癌、肾癌多见;女性以乳腺癌、肺癌、肝癌、结直肠癌、胃癌、膀胱癌为主.因此,高校教职工恶性肿瘤防治工作的重点应放在40岁以上人群,加强肺癌、乳腺癌、结直肠癌及前列腺癌防治研究具有重要意义. 相似文献
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