Provision of step-level public goods with continuous contribution

Twelve groups of five subjects each participated in a nonco-operative game in which each member of a group receives the same endowment and must then decide independently and anonymously how much of it to contribute to the group benefit. Regardless of the size of his or her contribution, each member receives the same reward if, and only if, the sum of contributions is equal to or larger than a prespecified provision threshold. The results show that the level of contribution depends on the provision threshold, and that it increases when contributions are not restricted to be all-or-none. We present, discuss, and competitively test two models for this class of social dilemmas, one postulating maximization of expected utility and the other yielding an equitable solution.     

7－15岁儿童对友谊关系的认知及其发展

用以承诺为主题的两难推理故事探查７－１５岁儿童对友谊关系的认知及其发展。结果表明,儿童的有关发展制约于社会观点采择能力的发展和调节友谊关系的道德规范的理解,并表现出阶段结构的发展模式,我国儿童的发展具有某种跨文化的普遍性,也显示出自己的特点。     

智能医疗的伦理困境与治理——基于以病人为中心的考察

智能医疗的研究与应用发展迅速,在医疗检测、诊断与预测等多领域都显示出了更强的技术优越性。与此同时,智能医疗也出现了算法黑箱导致的病人知情权受到侵犯、用户数据泄露、公平正义问题以及责任归属难以界定等亟待解决的各种伦理难题,对“以病人为中心”的医学临床传统造成威胁。智能医疗的广泛应用不仅需要突破技术难题,更加需要构建以病人为中心的伦理治理体系,做出尊重病人需求和权利的理性决策。

     

精神分裂症患者的疾病表达与身份困境——一项基于知乎的实证研究

基于知乎的25起自述文本,研究精神分裂症患者的疾病表达,探究患者病程对叙事类型产生的影响,剖析患者面临的身份困境。研究发现,接受治疗的患者偏向于康复叙事,未治疗的患者偏向于混乱叙事和探寻叙事;同时,精神分裂症患者面临本我、自我与超我相互冲突的身份困境。未来可以在传播层面针对性加强精神疾病类的科普教育以促进患者就医;在叙事层面挖掘以病患作为主体传播模式的潜力、深化叙事疗法中的共情体验以辅助患者建构身份。

     

权力感对道德困境判断的影响：基于CNI模型的分析

采用道德困境判断的CNI（consequence, norm, inaction）模型,通过两个实验考察权力感对道德困境判断的影响。实验1探讨个人权力感对道德困境判断的影响,结果显示高个人权力感显著增加被试对规则的敏感,促使个体做出道义论的道德判断。实验2考察回忆任务启动的权力感对道德困境判断的影响,发现相对于低权力感启动的被试,高权力感启动的被试在进行判断时更关注行为的结果,对规则更不敏感,这说明启动的权力感促进功利主义的道德判断,抑制道义论的道德判断。结果表明,不同类型的权力感对道德困境判断的影响存在差异。     

Prior experience and patterning in a prisoner's dilemma game

Female college students first played a pseudo-prisoner's dilemma (PPD) game with the experimenter, who followed a fixed strategy. In the first experiment the experimenter's strategies for different groups of subjects were: (a) play tit-for-tat; (b) play randomly; (c) always cooperate; (d) always defect (‘cooperation’ and ‘defection’, defined as in an actual prisoner's dilemma game). Only the tit-for-tat group increased cooperation over trials; other groups decreased cooperation. After playing the PPD with the experimenter, subjects played an actual prisoner's dilemma (PD) game with each other. In the PD game, subjects began cooperating moderately but cooperation deteriorated regardless of what the experimenter's strategy had been in the earlier (PPD) game. In a second experiment, subjects again played a PPD game with the experimenter and then played a PD game with each other. Half played one trial at a time as in the first experiment while half played in patterns of four trials at a time. In the PD game, patterning of trials retarded the development of mutual defection regardless of previous experience. The cooperation-preserving effect of patterning of trials in this social task is compared with similar effects on individual tasks involving self-control and risk-aversion. © 1998 John Wiley & Sons, Ltd.     

动机的概率意义——概率归并定理与Monty Hall问题的非贝叶斯解

本文探讨Monty Hall问题认知困惑的形成因素。通过对该问题数学结构的分析,导出一个与该问题的解密切相关的定理——概率归并定理;并依据该定理给出了Monty Hall问题的一种更直观的数学解。     

萨特在人的发展问题上的"责任"困境

在萨特的人学理论中,“自由”无疑是一个最重要的范畴。存在就是自由,自由的绝对性使得它成为一切事物及其自身的根据。然而,为了保证人的发展的合理性,在高扬了自由之后,萨特力图在最后解决的却一直是“自由”与“责任”的统一,这样,萨特将自己陷于一个无从解脱的困境之中：由于绝对自由论的前提,他所倡导的对自己、对他人,乃至对世界的“责任”,最后却成了人们逃避责任的一种托辞。     

公共物品困境中自我权力和他人权力对初中生合作行为的影响

本研究分别操纵被试稳定的权力（实验1）和不稳定的权力（实验2）,并与不同权力个体进行公共物品困境任务,以考察了自我权力和他人权力对初中生合作行为的交互作用及其权力稳定性在其中的作用。结果发现,在权力稳定情境下,高权力的初中生合作水平低于低权力组和控制组,而在权力不稳定的情境下,高权力的初中生合作水平高于低权力组。无论权力稳定与否,与低权力同伴合作时,低权力者的合作水平均显著高于与高权力同伴合作时。