动态系统累积变量判断中的关联启发式

关联启发式是指在累积变量判断中, 将存量与流量建立正相关关系, 认为存量变化特征与流量变化特征具有相似性而导致判断偏差的思维模式。在多特征交互及简单动态系统任务判断中, 关联启发式偏差以不同形式的S-F错误表现出来。作为一种内生性的、顽固的思维模式, 对于关联启发式的心理机制提出了客体偏差、特征替代、不充分调整等多种观点解释。影响关联启发式的个体因素和情境因素的研究结果不尽一致。由于关联启发式偏差直接影响人对复杂系统的可持续性决策和行动, 减少偏差策略的研究也已实现起步。本文系统总结和分析了关联启发式研究的发展脉络, 针对澄清关联启发式的发生机制、系统考察关联启发式的影响因素及其相互作用、丰富和深化关联启发式的研究范式、开发减少关联启发式的有效途径等方面, 提出了深化研究的方向和思路。     

A COMPARISON OF THE EFFECTS OF FIXED AND VARIABLE RATIO SCHEDULES OF REINFORCEMENT ON THE BEHAVIOR OF DEAF CHILDREN

The performance of all five students in an adjustment class for deaf children was compared under fixed and variable ratio schedules of reinforcement. During the fixed ratio (FR) condition, students earned checks if they were attentive and did not engage in disruptive behavior. These checks could be exchanged for the opportunity to draw a prize from a grab bag. During the variable ratio (VR) condition, they earned a draw from the grab bag according to a variable ratio schedule with a mean ratio equal to the value of the preceding FR schedule. During the VR condition, students visually attended more and engaged in disruptive behavior less often than during the FR condition. The number of math problems completed per minute was also higher during the VR condition although no specific consequences were applied to math performance.     

Pragmatism, Relativism, and the Critique of Philosophy

The relativist strain in Rorty's work should be distinguished from the Davidsonian strain. The latter may be exploited in support of Rorty's critique of philosophy but it is at odds with his use of "solidarity" and "ethnocentrism"as explanatory concepts. Once this is recognized, there remains in Rorty's work a consistent challenge to the search for general philosophical theories of truth, objectivity, and rationality (of which relativism itself is an example). On this reading, however, Rorty's pragmatism is not a theory that offers answers to questions about the authority of beliefs and practices but rather a critical tool used to open detailed, concrete, and critical investigation into particular questions about the establishment and viability of the beliefs and practices we have.     

Schedule-induced defecation.

Excessive defecation, typically considered to be a concomitant of stress, was experimentally induced or eliminated under specific schedules of positive reinforcement of lever pressing by rats. The schedules were, by and large, those under which polydipsia is typically induced. In the first of three experiments, rats under fixed-interval 32-second schedules and variable interval 32-second schedules for food and water reinforcers defecated profusely, but not under fixed-interval one-second schedules or other small interval schedules. Somewhat higher rates of defecation were observed on variable interval 32-second schedules than on fixed-interval 32-second schedules. In a second experiment, fixed-ratio schedules were used, some of which resulted in responding such that reinforcement densities were similar to those on the interval schedules that induced defecation. Defecation was not systematically induced by these ratio schedules. In a third experiment, fixed-time schedules of food presentations were utilized. High rates of defecation were induced comparable to those induced by interval schedules of the same time parameter. No other behavior commonly termed "emotional" was observed in any of these experiments.     

手术同意书的相关法律问题

医患双方都非常重视手术同意书 ,从法理角度分析 ,手术同意书是患者知情同意权利和医方告知义务的体现 ;符合民事法律要件的合法有效的手术同意书 ,证明了医患之间告知与知情同意权的实现。对手术同意书的法律性质及法律效力进行探究 ,有助于维护医患双方的合法权利     

Chaos and self-organization: emergent patterns at critical life transitions

A feeling of chaos can accompany many real-life events over which we have little or no control, and latent developmental needs may create tension that manifests in symptoms of depression or anxiety. Particularly at critical life transitions, conflicts may arise which have no obvious solution. From an analytic perspective, recent scientific models from the area of complexity theory can prove illuminating as analogies to Jung's archetypal view of the individuation process. Throughout life, human beings, like many complex, open systems, pass from disordered phases to more complex stages of order. This paper shows how the scientific concept of self-organization can be compared with our physical and psychological developmental processes. From embryology, the model of the 'epigenetic landscape' (C.H. Waddington) is introduced as an analogy to Jung's individuation process, with a clinical example to illustrate these parallels. The emergent nature of behaviour and development is seen from the viewpoint of the organism as a dynamical system, and Jung's concept of the archetype viewed as an emergent property of the activity of the brain/mind.     

时间期待的认知与神经机制

时间期待是指个体利用环境中的时间信息预测目标刺激何时出现的能力。相关的认知模型可以分为两类：一类侧重于解释时间期待的形成过程, 如痕迹条件反射模型、双加工模型、动态注意模型、时间定向理论等; 另一类侧重于解释时间期待的更新过程, 如策略模型和时间再定位模型等。不同类型的时间期待激活的脑区不同, 表明时间期待的产生和更新过程存在分离：期待的产生激活与运动有关的左侧脑区, 而期待的更新激活与控制有关的右侧脑区。     

U.S. Patent Policy: Crafting a 21st Century National Blueprint for Global Competitiveness

The paper begins with an overview of the legal, institutional, and public policy bases of the U.S. patent granting system and subsequently examines major deficiencies acknowledged in the existing U.S. patent system. The paper then catalogs the essence of four patent reform proposals of the Federal Trade Commission, the National Research Council, and academic economists (Jaffe/Lerner and Maskus), all of which focus on ameliorating alleged major weaknesses in the U.S. patent system. The paper concludes with an analysis of the above cited patent reform proposals, arguing for a proposed set of workable policy recommendations (reflecting recent changes in public policy) focused on patent cost controls, patent quality, patent uncertainty, and patent reform legislation, all designed to contribute to a globally competitive 21st century patent policy for the U.S. economy.

从讲话者和听话者两个角度看韵律的句法解歧

综述了近年来韵律句法解歧方面的一些研究。首先介绍了韵律特征及其作用;其次,简单介绍了句法歧义及其加工模型;然后从讲话者和听话者两个角度,分析了讲话者在自然的情境中是否自发稳定的生成韵律线索,以及听话者是否能够即时的使用韵律信息引导最初的句法分析两个问题,并简要地阐述了汉语韵律和句法的独特特点以及国内的相关研究;最后,初步探讨了进行汉语相应研究应该注意的问题     

歧视知觉与农村留守青少年的孤独感:亲子分离年龄和分离时长的作用

以1177名农村留守青少年为被试（包括394名双亲外出青少年和783名父亲外出青少年）,考察其歧视知觉和孤独感之间的关系,并检验亲子分离年龄和分离时长在其中的调节作用。结果发现：（1）双亲外出青少年的歧视知觉水平显著高于父亲外出青少年,留守男生的孤独感显著高于女生;（2）歧视知觉能够显著正向预测留守青少年的孤独感,且对双亲外出青少年孤独感的预测作用强于父亲外出青少年;（3）与亲子分离年龄较大相比,在亲子分离年龄较小的情况下,歧视知觉对双亲外出青少年孤独感的预测作用更强;与亲子分离时间较长的青少年相比,在亲子分离时间较短的情况下,歧视知觉对两类留守青少年孤独感的预测作用更高;（4）亲子分离时长对歧视知觉与父亲外出青少年孤独感之间关系的调节作用因亲子分离年龄不同而有所差异。