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81.
Hugh LaFollette 《The Journal of Ethics》2005,9(3-4):475-499
Our actions, individually and collectively, inevitably affect others, ourselves, and our institutions. They shape the people
we become and the kind of world we inhabit. Sometimes those consequences are positive, a giant leap for moral humankind. Other
times they are morally regressive. This propensity of current actions to shape the future is morally important. But slippery
slope arguments are a poor way to capture it. That is not to say we can never develop cogent slippery slope arguments. Nonetheless,
given their most common usage, it would be prudent to avoid them in moral and political debate. They are often fallacious
and have often been used for ill. They are normally used to defend the moral status quo. Even when they are cogent, we can always find an alternate way to capture their insights. Finally, by accepting that the
moral roads on which we travel are slippery, we become better able to successfully navigate them. 相似文献
82.
Language, Learning, and Color Perception 总被引:1,自引:0,他引:1
Emre Özgen 《Current directions in psychological science》2004,13(3):95-98
Abstract— People perceive colors categorically. But what is the role of the environment (or nurture)—specifically, language—in color perception? The effects of language on the way people categorize and perceive colors have been considered to be minimal, but recent evidence suggests that language may indeed change color perception. Speakers of languages with different color-name repertoires show differences in the way they perceive color. Research shows that categorical effects on color perception can be induced through laboratory training and suggests language can similarly change color perception through the mechanism of perceptual learning. 相似文献
83.
介绍了近年来语言和颜色范畴知觉关系研究的新进展, 特别是颜色范畴知觉效应的偏侧化、婴幼儿颜色范畴知觉的特点等。同时指出了今后需要进一步研究的问题, 如颜色范畴知觉效应偏侧化与语言的关系、右脑语言优势者颜色范畴知觉的特点、颜色加工脑区和语言加工脑区之间的关系以及婴幼儿颜色范畴知觉特点的追踪研究等。 相似文献
84.
Ingvarsson ET 《Journal of applied behavior analysis》2011,44(1):205-209
This study examined the effects of parent-implemented mand training on the acquisition of framed manding in a 4-year-old boy who had undergone partial hemispherectomy. Framed manding became the predominant mand form when and only when the intervention was implemented with each preferred toy, but minimal generalization to untrained toys nevertheless occurred. A pure mand test suggested that manding was controlled by the relevant motivating operation. 相似文献
85.
Marzullo-Kerth D Reeve SA Reeve KF Townsend DB 《Journal of applied behavior analysis》2011,44(2):279-294
The current study examined the utility of multiple-exemplar training to teach children with autism to share. Stimuli from 3 of 4 categories were trained using a treatment package of video modeling, prompting, and reinforcement. Offers to share increased for all 3 children following the introduction of treatment, with evidence of skill maintenance. In addition, within-stimulus-category generalization of sharing was evident for all participants, although only 1 participant demonstrated across-category generalization of sharing. Offers to share occurred in a novel setting, with familiar and novel stimuli, and in the presence of novel adults and peers for all participants during posttreatment probes. 相似文献
86.
87.
过度泛化现象是区分普通心理问题和严重心理问题的重要指标。创伤后应激障碍(posttraumatic stress disorder, PTSD)患者在创伤事件后会出现非适应性的泛化。现有研究结果表明非适应性泛化(maladaptive generalization)可能是PTSD发生发展的一个重要因素, 但也有研究支持PTSD是导致了泛化从适应性向非适应性化转变的原因。虽然泛化现象的变化与PTSD症状的发展有相同趋势, 且具有共同的生理基础:记忆相关神经结构, 但二者之间的关系尚无明确定论。阐明PTSD与非适应性泛化之间的关系对PTSD的预测、诊断和治疗均有推进作用。 相似文献
88.
恐惧泛化是条件性恐惧反应转移到另一个相似但安全的刺激的现象。适当的恐惧泛化对人类有积极意义, 而过度的恐惧泛化则不利于个体有效地适应环境。基于知觉的恐惧泛化研究揭示了恐惧泛化的规律, 因而被广泛应用。本文首先梳理了对知觉恐惧泛化的相关研究, 介绍恐惧泛化的经典理论基础—巴普洛夫条件反射以及恐惧泛化梯度; 其次简要回顾基于多个感觉通道(即视觉、听觉、情景)的知觉恐惧泛化研究现状; 再次, 分别对海马、杏仁核、脑岛和前额叶等脑区在恐惧泛化中的作用进行回顾, 进一步总结出恐惧泛化的神经环路结构模型。最后, 简要区分了基于知觉的恐惧泛化和正在兴起的基于概念的恐惧泛化, 进而指出未来研究需要结合基于概念的恐惧泛化、区分被试对刺激的辨别力、增加恐惧刺激材料的准确性及多样化、结合激素等个体差异和多模态脑成像数据来展开。 相似文献
89.
Lerman DC Tetreault A Hovanetz A Strobel M Garro J 《Journal of applied behavior analysis》2008,41(2):243-248
The purpose of this study was to further evaluate the outcomes of a model program that was designed to train current teachers of children with autism. Nine certified special education teachers participating in an intensive 5-day summer training program were taught a relatively large number of specific skills in two areas (preference assessment and direct teaching). The teachers met the mastery criteria for all of the skills during the summer training. Follow-up observations up to 6 months after training suggested that the skills generalized to their classrooms and were maintained for most teachers with brief feedback only. 相似文献
90.
Albert Maydeu-Olivares 《Psychometrika》2006,71(1):57-77
Discretized multivariate normal structural models are often estimated using multistage estimation procedures. The asymptotic
properties of parameter estimates, standard errors, and tests of structural restrictions on thresholds and polychoric correlations
are well known. It was not clear how to assess the overall discrepancy between the contingency table and the model for these
estimators. It is shown that the overall discrepancy can be decomposed into a distributional discrepancy and a structural
discrepancy. A test of the overall model specification is proposed, as well as a test of the distributional specification
(i.e., discretized multivariate normality). Also, the small sample performance of overall, distributional, and structural
tests, as well as of parameter estimates and standard errors is investigated under conditions of correct model specification
and also under mild structural and/or distributional misspecification. It is found that relatively small samples are needed
for parameter estimates, standard errors, and structural tests. Larger samples are needed for the distributional and overall
tests. Furthermore, parameter estimates, standard errors, and structural tests are surprisingly robust to distributional misspecification.
This research was supported by the Department of Universities, Research and Information Society (DURSI) of the Catalan Government,
and by grants BSO2000-0661 and BSO2003-08507 of the Spanish Ministry of Science and Technology. 相似文献