等待是一种折磨？等待时间知觉及其导致的非理性决策行为

等待时间知觉是指人们在等待过程中对等待时长的主观感受和心理体验, 它对人们的决策行为产生影响。影响等待时间知觉的客观因素包括等待过程的填充物、等待时间的确定性、接受服务的阶段和等待的物理环境等; 主观因素有负性情绪、自我控制和人格因素等。等待时间知觉导致的非理性决策行为包括时间沉没成本效应、“延迟-提前”框架效应、峰-终效应、偏好反转等。未来研究可从三个方面开展：(1) 时间启动和金钱启动下等待时间知觉的差异; (2) 基于时间心理账户视角研究等待时间知觉规律; (3) 借鉴时间知觉理论探讨等待(时间)影响决策行为的心理机制。     

Verb subcategorization frequencies: American English corpus data, methodological studies, and cross-corpus comparisons.

Verb subcategorization frequencies (verb biases) have been widely studied in psycholinguistics and play an important role in human sentence processing. Yet available resources on subcategorization frequencies suffer from limited coverage, limited ecological validity, and divergent coding criteria. Prior estimates of verb transitivity, for example, vary widely with corpus size, coverage, and coding criteria This article provides norming data for 281 verbs of interest to psycholinguistic research, sampled from a corpus of American English, along with a detailed coding manual. We examine the effect on transitivity bias of various coding decisions and methods of computing verb biases.     

Learning by Collaborative and Individual‐Based Recommendation Agents

Intelligent recommendation systems can be based on 2 basic principles: collaborative filters and individual‐based agents. In this work we examine the learning function that results from these 2 general types of learning‐smart agents. There has been significant work on the predictive properties of each type, but no work has examined the patterns in their learning from feedback over repeated trials. Using simulations, we create clusters of “consumers” with heterogeneous utility functions and errorful reservation utility thresholds. The consumers go shopping with one of the designated smart agents, receive recommendations from the agents, and purchase products they like and reject ones they do not. Based on the purchase–no purchase behavior of the consumers, agents learn about the consumers and potentially improve the quality of their recommendations. We characterize learning curves by modified exponential functions with an intercept for percentage of recommendations accepted at Trial 0, an asymptotic rate of recommendation acceptance, and a rate at which learning moves from intercept to asymptote. We compare the learning of a baseline random recommendation agent, an individual‐based logistic‐regression agent, and two types of collaborative filters that rely on K‐mean clustering (popular in most commercial applications) and nearest‐neighbor algorithms. Compared to the collaborative filtering agents, the individual agent (a) learns more slowly, initially, but performs better in the long run when the environment is stable; (b) is less negatively affected by permanent changes in the consumer's utility function; and (c) is less adversely affected by error in the reservation threshold to which consumers compare a recommended product's utility. The K‐mean agent reaches a lower asymptote but approaches it faster, reflecting a surprising stickiness of target classifications after feedback from recommendations made under initial (incorrect) hypotheses.     

发展视野下的生命认知:研究取向与整合

根据"生命认知"的定义及该领域的研究进展,以儿童和青少年为主要分析对象,将其分为三大研究取向:"知"的看法和理解、"情"的体验和感悟、"意"的探索和领悟,并依次介绍目前国内外研究者在各取向的研究成果.文章最后指出,该领域的研究应注重:研究范畴的界定、"知情意"的三者结合、研究方法的可行性和研究视角的选取,以此来更全面地探寻儿童和青少年生命认知的发展特点及其规律,为生命教育提供实证依据.     

5·12地震灾民安全感与PTSD的关系

对地震灾民安全感状况进行调查并探讨其与PTSD的关系。方法：使用自编地震灾民安全感问卷（Perceived Security Questionnaire for Earthquake Victims, PSQ-EV）和创伤后应激障碍筛查量表平时版（PTSD Checklist Civilian Version, PCL-C）,在震后一个月时对德阳、绵竹和什邡等地290名灾民进行测查。结果：安全感问卷的三个维度:安全需要、归属需要和确定控制感之间存在显著差异;‚在安全需要维度上,不同年龄段存在显著差异;ƒ安全需要和确定控制感与PTSD 回归显著。结论：地震灾民在灾后安全需要的满足程度偏低;灾民安全感与创伤后应激反应有密切关系     

艾滋病预防性疫苗的研制——转向是岸

对20多年来国际艾滋病疫苗研制失败的关键原因和另辟蹊径进行剖析和探讨.抗原天然构象的缺失导致疫苗无效;特异性免疫系统受HIV侵害无力免疫导致疫苗失效;HIV高度变异、众多分株,寄望研制一种广谱的疫苗不可能,预防免疫难以实施、有效;HIV不适宜制备预防性疫苗,只有调转方向才能走出迷惘,并推出了颠覆传统理论思维的两个防、治疫苗的发明设计.