贝叶斯推理的三重加工心智模型

自二十世纪60年代Edwards首次用实验研究人类推理是否遵循贝叶斯规则以来,国内外贝叶斯推理研究取得了长足的发展,但也出现了一些困境:对影响贝叶斯推理的客体因素和主体因素研究未成体系,解释理论莫衷一是。未来的研究应该重新审视客体与主体的关系,系统整合和多角度分析影响贝叶斯推理的因素,尝试以三重加工心智模型解释人类贝叶斯推理行为,并对以往的解释理论进行融合,从而更好地揭示人类不确定性决策的本质。     

Understanding the Effect of Social Capital on the Depression of Urban Chinese Adolescents: An Integrative Framework

Using data from an ongoing longitudinal study of 5,164 adolescents and their parents from seven cities in mainland China, this study investigated how social capital embedded in the family and the community, together with family human capital and financial capital, influenced the depressive symptoms of urban Chinese adolescents within an integrative framework. The structural equation modeling results suggested that higher community social capital was associated with lower level of adolescent depressive symptoms and was the strongest predictor among all these contextual factors. Family social capital played a significant role in mediating the effects of all other contextual factors on adolescent depressive symptoms. Unexpectedly, higher family financial capital predicted increased depressive symptoms both directly and indirectly through its negative effect on family social capital. As for gender, female adolescents reported more depressive symptoms as a result of less available family social capital. Implications of these findings for theory, practice, policy, and future research are discussed.     

略论“延续性医德教育”模式的内涵与构建

目前医德教育在教育时间与教育手段等方面缺乏延续性。通过对医德教育的特点和规律以及传统医德教育存在的弊病、医疗领域不正之风的负面影响等问题的分析,提出应着手构建在校医学生—实习生—在职医务人员"三位一体"的"延续性医德教育"模式,实现"第一课堂与第二课堂"、"系统医德理论与实践"、"被动性与自主性"医德教育三结合。     

信度估计的γ系数

本文提出了信度估计的γ系数。与今天应用最广泛的α系数相比,γ系数较少受到被试样本特点的影响,更多地反映了测验受到误差因素影响的程度,因此,γ系数是更好的测验信度估计指标。     

关于异种器官移植的问题

随着器官移植的广泛开展,器官短缺的问题日渐突出,８０年代末起异种器官移植的应用引起人们的重视,并形成热潮。但研究表明,克服异种移植排斥非易事,异种器官移植可能引起的病毒性疾病的传播,以及异种器官分子不相容性造成的种属屏障,都使异种器官移植的前景难料。     

农民工职业自我效能感的结构

职业自我效能感是影响个体职业发展的重要心理因素。在开放式问卷调查和文献研究的基础上,初步建构了农民工职业自我效能感的结构。对155人样本数据的探索性因素分析和对146人样本数据的验证性因素分析的结果支持了农民工的职业自我效能感包括职业胜任自我效能感、职业关系自我效能感、职业学习与发展自我效能感、职业问题解决自我效能感四个因素的建构。对农民工职业自我效能感问卷的信度与效度的检验显示,问卷的信度与效度能够达到心理测量的基本要求,可以作为农民工职业自我效能感的测量工具。     

组织情境中的影响策略研究述评

影响策略是指个体采取的旨在使他人态度和行为产生预期改变的行为方式。组织情境下的影响策略受动机、场控制和自我监控等因素的影响,对工作绩效、薪酬、晋升和一些积极组织行为有显著的预测作用。本文侧重介绍了影响策略的结构、测量、前因后果变量以及跨文化研究等方面内容,总结了已有研究为管理实践提供的有价值参考,并指出研究方法的有效互补、对基层职员影响策略的关注和基于中国人行为观念的本土化研究是今后探讨的主要方向。     

多层多项Logit模型：原理与应用

常用的多层线性模型要求因变量是服从正态分布的连续变量,却无法处理因变量为离散变量的嵌套数据.多层多项Logit模型能够处理因变量是无序多分类的多层嵌套数据,但这一模型在我国心理学研究中却鲜有介绍和应用.研究简要介绍了多层多项Logit模型的原理、参数估计和假设检验,然后分别用该模型和传统Logistic回归模型探讨个体因素和区域因素对35721名学生进入不同高校就读机会的影响并对结果进行了解释,结果表明多层多项Logit模型比传统Logistic回归模型更拟合数据.     

A cGMP-dependent protein kinase gene, foraging, modifies habituation-like response decrement of the giant fiber escape circuit in Drosophila

The Drosophila giant fiber jump-and-flight escape response is a model for genetic analysis of both the physiology and the plasticity of a sensorimotor behavioral pathway. We previously established the electrically induced giant fiber response in intact tethered flies as a model for habituation, a form of nonassociative learning. Here, we show that the rate of stimulus-dependent response decrement of this neural pathway in a habituation protocol is correlated with PKG (cGMP-Dependent Protein Kinase) activity and foraging behavior. We assayed response decrement for natural and mutant rover and sitter alleles of the foraging (for) gene that encodes a Drosophila PKG. Rover larvae and adults, which have higher PKG activities, travel significantly farther while foraging than sitters with lower PKG activities. Response decrement was most rapid in genotypes previously shown to have low PKG activities and sitter-like foraging behavior. We also found differences in spontaneous recovery (the reversal of response decrement during a rest from stimulation) and a dishabituation-like phenomenon (the reversal of response decrement evoked by a novel stimulus). This electrophysiological study in an intact animal preparation provides one of the first direct demonstrations that PKG can affect plasticity in a simple learning paradigm. It increases our understanding of the complex interplay of factors that can modulate the sensitivity of the giant fiber escape response, and it defines a new adult-stage phenotype of the foraging locus. Finally, these results show that behaviorally relevant neural plasticity in an identified circuit can be influenced by a single-locus genetic polymorphism existing in a natural population of Drosophila.     

欧阳渐"佛法非宗教非哲学"思想衍论

“佛法非宗教非哲学”的思想是近代佛学大师欧阳渐先生提出来的。该文考察了欧阳渐对“佛法”的理解,并在对“如何正确理解”、“如何客观评判”、“如何合理发扬”欧阳渐“佛法”思想等问题展开讨论的同时,简要分析了该思想的成因、价值及其学术意义。该文认为：要客观评判欧阳渐的“佛法”思想,应该正确区分“佛法”与“佛教”、“佛学”的关系,全面理解其“佛法”思想,并根据“佛法”的实际来加以评价;佛法非宗教非哲学而始终为人类所必需,乃是欧阳渐“佛法”思想留给我们的有益启示,值得在深入思考和研究的基础上加以发扬。