西方文明中的人性假设与现代市场经济的伦理特性

制度伦理与人性假设是密切相关的.性恶论是西方文明中的基本人性假设,早期崇恶制度伦理的起源即是以此为基础的.近代社会契约理论促进了西方市场经济制度伦理的形成,古典和新古典经济学发展了人性假设理论,对市场经济制度伦理至善性进行了探索,到了现代,有限理性主义一定程度上又复归到崇恶制度伦理上.西方人性假设理论折射出的现代市场经济的伦理特性应当是:利己和利他结合、经济和道德一体、竞争与合作的互动、公平与效率的平衡.     

关于构建和谐社会思想的政治哲学解读

社会冲突理论是马克思主义社会理论中的重要内容,不过与此同时应当看到的是,由社会冲突理论所积极引发的马克思关于社会主义、共产主义的深入思考,最终不仅改变了资本主义与封建主义的政治发展进程,甚至可以说也改变了整个人类历史的政治发展进程,因此从根本上说它又可以称得上是一种具有极其深刻现实影响力的政治哲学思想.     

Representing Sudden Shifts in Intensive Dyadic Interaction Data Using Differential Equation Models with Regime Switching

A growing number of social scientists have turned to differential equations as a tool for capturing the dynamic interdependence among a system of variables. Current tools for fitting differential equation models do not provide a straightforward mechanism for diagnosing evidence for qualitative shifts in dynamics, nor do they provide ways of identifying the timing and possible determinants of such shifts. In this paper, we discuss regime-switching differential equation models, a novel modeling framework for representing abrupt changes in a system of differential equation models. Estimation was performed by combining the Kim filter (Kim and Nelson State-space models with regime switching: classical and Gibbs-sampling approaches with applications, MIT Press, Cambridge, 1999) and a numerical differential equation solver that can handle both ordinary and stochastic differential equations. The proposed approach was motivated by the need to represent discrete shifts in the movement dynamics of \(n= 29\) mother–infant dyads during the Strange Situation Procedure (SSP), a behavioral assessment where the infant is separated from and reunited with the mother twice. We illustrate the utility of a novel regime-switching differential equation model in representing children’s tendency to exhibit shifts between the goal of staying close to their mothers and intermittent interest in moving away from their mothers to explore the room during the SSP. Results from empirical model fitting were supplemented with a Monte Carlo simulation study to evaluate the use of information criterion measures to diagnose sudden shifts in dynamics.     

Human Capital and the Economic Assimilation of Recent Immigrants in Hong Kong

Using data from the 1996, 2001, and 2006 years of the Hong Kong Population Census, this paper reported the nativity earnings gap among a synthetic cohort of immigrant and native male Chinese employees in Hong Kong. Consistent with previous research, we found earnings divergence for all workers. However, this earnings divergence masked a reverse trend for low-skilled workers. Over time, low-skilled immigrant workers gained earnings assimilation with low-skilled native workers, but high-skilled immigrant workers did not gain assimilation with high-skilled native workers. A decomposition analysis suggested that the relative skill prices cannot explain the overtime change in the relative mean-earnings gaps by nativity. Further separating pre- and postmigration education of immigrants did not improve the explanatory power of the relative skill prices. Our results for Hong Kong are consistent with the findings from recent research on the economic assimilation of low-skilled immigrants in other countries.     

不同发展阶段的习得性长时程突触增强对新学习的影响

在慢性实验条件下观察到大鼠由学习训练所产生的海马CA_3区习得性长时程突触增强,它的不同发展阶段对新学习任务的习得有不同的作用:(1)在它的形成阶段及巩固阶段对新学习均有易化作用,虽然两个阶段突触效应增强的程度都处于相同的高水平,但后者的易化作用相对要大些,提示这两个发展阶段突触的可塑性变化是有差异的;还有,新学习任务的训练并没有引起突触效应的进一步增强,表明突触效应的长时程增强有“饱和”现象。(2)在它消退后,对新学习任务的习得没有影响。上述结果提示学习的组织形式不同,可从突触机制上影响学习的效果,并进一步证明习得性长时程突触增强是学习和记忆的神经基础。     

NMDA受体在海马习得性长时程突触增强形成中的作用

本文应用慢性埋植技术以电生理学结合行为学的方法,在大鼠条件性饮水反应的建立中,于每实验日训练开始前给海马CA_3区微量注射NMDA受体拮颃剂2-amino-5-phosphonovalerate(APV),观察它对海马CA_s区突触效应及与之相关的条件性行为反应的影响。发现注射APV后对CA_3区突触效应的习得性长时程增强的产生有显著的抑制性影响,相应地条件性饮水反应的建立也受到显著的抑制,提示NMDA受体参与习得性LTP的产主。     

心理距离对基线比例忽略的影响

基线比例忽略是指在不确定情境中, 个体进行判断和决策时不能充分利用或者忽略基线比例的现象。本研究通过系列情境实验探索了三种不同维度的心理距离, 即时间距离、空间距离和社会距离对基线比例忽略的影响。结果发现, 三种心理距离均能够对基线比例忽略产生影响：当时间距离、空间距离和社会距离较近时, 个体更容易表现出基线比例忽略现象; 而当时间距离、空间距离和社会距离较远时, 个体的基线比例忽略倾向减弱。     

判断与决策中的投射偏差

投射偏差是指个体常常会高估未来偏好与当前偏好的一致性, 从而把当前偏好投射到未来的心理倾向性。本文从情感–认知加工、时间修正和心理模拟等视角对投射偏差的心理机制进行了解释, 并概括出投射偏差的内源性(含内脏感觉、情绪状态和需要)和外源性(含事件相关信息、天气状况和选择情境)影响因素, 还总结归纳出投射偏差的三种应对策略, 最后指出了投射偏差在未来研究的方向。     

汉语发展性阅读障碍儿童的视知觉学习*

研究采用知觉学习经典范式中的视觉搜索任务探讨汉语发展性阅读障碍儿童的知觉学习过程。研究考察了阅读障碍儿童与正常儿童在简单搜索任务、复杂搜索任务和限制时间的复杂搜索任务上的知觉学习特点。结果发现,阅读障碍儿童在复杂搜索任务中初始搜索时间显著长于正常控制组;在限制时间的复杂搜索任务中更进一步发现阅读障碍儿童的反应正确率显著低于正常控制组儿童;而且两组儿童视觉搜索任务的正确率与汉语阅读的识字量成绩存在显著相关。上述结果表明,汉语发展性阅读障碍儿童存在复杂搜索的知觉学习缺陷,这种缺陷可能在某种程度上与儿童的阅读技能发展有关。     

(Re)evaluating the Implications of the Autoregressive Latent Trajectory Model Through Likelihood Ratio Tests of Its Initial Conditions

The autoregressive latent trajectory (ALT) model synthesizes the autoregressive model and the latent growth curve model. The ALT model is flexible enough to produce a variety of discrepant model-implied change trajectories. While some researchers consider this a virtue, others have cautioned that this may confound interpretations of the model's parameters. In this article, we show that some—but not all—of these interpretational difficulties may be clarified mathematically and tested explicitly via likelihood ratio tests (LRTs) imposed on the initial conditions of the model. We show analytically the nested relations among three variants of the ALT model and the constraints needed to establish equivalences. A Monte Carlo simulation study indicated that LRTs, particularly when used in combination with information criterion measures, can allow researchers to test targeted hypotheses about the functional forms of the change process under study. We further demonstrate when and how such tests may justifiably be used to facilitate our understanding of the underlying process of change using a subsample (N = 3,995) of longitudinal family income data from the National Longitudinal Survey of Youth.