味觉厌恶性条件反射与条件反射性免疫抑制的研究

以环磷酰胺的注射为非条件刺激（ＵＣＳ）,糖精水的摄入为条件刺激（ＣＳ）,并以血白细胞和淋巴细胞数量及脾淋巴细胞的转化反应为免疫指标,糖精水的饮用量为行为指标,通过改变条件刺激与非条件刺激结合的次数来观察条件反射性厌恶行为与条件反射性免疫抑制的反应。结果表明不管是一次性的还是两次性的ＣＳ－ＵＣＳ结合训练都能使动物明显地建立起味觉厌恶性条件反射,然而条件反射性免疫抑制只在两次性ＣＳ－ＵＣＳ结合训练后才     

Importance of Human Needs During Retrospective Peacetime and the Persian Gulf War: Mideastern Employees

This study examined the importance of needs during the retrospective peacetime in 1990 and the Persian Gulf War in 1991 using a sample of 378 employees in the Middle East. Results of factor analyses identified three levels of needs during peacetime and wartime. Factor structures of needs did change from peacetime to wartime and were different. The patterns of needs identified in this study were different from needs theories developed in the U.S. Results were discussed in light of cultural differences, available resources in the environment, and the Persian Gulf War.     

社会应激对群体隔离动物行为的影响

本文观察了群居和隔离两种生活条件下的大白鼠摄食、饮水、睡眠等行为差异。并在环境变更后着重研究了社会应激对群体隔离动物的行为影响。 结果表明:群居与隔离两种环境对动物摄食、饮水和体重无明显影响,但隔离动物睡眠时间短,变化程度大。社会应激对隔离动物的摄食、饮水和睡眠的影响比群居组严重,恢复也慢。并产生了强烈的攻击性行为。但随着应激后群居时间的延长,攻击性逐渐减弱和消失,睡眠时间增加。然而,隔离对动物造成的影响不是短暂的,而是长期的。这种影响将在特殊的应激条件下再次表现出来。     

The Values of Chinese Students: At Home and Abroad

The Rokeach Value Survey was administered to two groups of Chinese students: Those residing in the People's Republic of China (P.R.C.) and those who had emigrated to the United States (U.S.A.). Results indicated that the two groups have very different value hierarchies. The traditional stereotypes, which depict the Chinese as dependent and collectivistic in nature, in contrast to the independent and individualistic Americans, were not confirmed; instead the converse appeared. P.R.C. students assigned greater importance to individualistic values, whereas the U.S.A. group deemed collectivistic values more salient. The dimension of class as a meaningful variable was discussed as a tentative explanation of the results.     

帕金森病人的图形辨别障碍

对56名帕金森病人用视觉形状辨别测验(VFDT)进行了测查,44名年龄、文化水平与帕金森组相当的正常人作为对照组。结果发现帕金森病人对图形辨别有明显障碍。对帕金森病人在图形辨别障碍中的特点进行了分析,并对其可能机制进行了讨论。     

Effects of foster care intervention and caregiving quality on the bidirectional development of executive functions and social skills following institutional rearing

Institutional rearing negatively impacts the development of children's social skills and executive functions (EF). However, little is known about whether childhood social skills mediate the effects of the foster care intervention (FCG) and foster caregiving quality following early institutional rearing on EF and social skills in adolescence. We examined (a) whether children's social skills at 8 years mediate the impact of the FCG on the development of EF at ages 12 and 16 years, and (b) whether social skills and EF at ages 8 and 12 mediate the relation between caregiving quality in foster care at 42 months and subsequent social skills and EF at age 16. Participants included abandoned children from Romanian institutions, who were randomly assigned to a FCG (n = 68) or care as usual (n = 68), and a never-institutionalized group (n = 135). At ages 8, 12, and 16, social skills were assessed via caregiver and teacher reports and EF were assessed via the Cambridge Neuropsychological Test Automated Battery. Caregiving quality of foster caregivers was observed at 42 months. FCG predicted better social skills at 8 years, which in turn predicted better EF in adolescence. Higher caregiver quality in foster care at 42 months predicted better social skills at 8 and 12 years, and better EF at 12 years, which in turn predicted 16-year EF and social skills. These findings suggest that interventions targeting caregiving quality within foster care home environments may have long-lasting positive effects on children's social skills and EF.     

Subtask analysis of process data through a predictive model

Response process data collected from human–computer interactive items contain detailed information about respondents' behavioural patterns and cognitive processes. Such data are valuable sources for analysing respondents' problem-solving strategies. However, the irregular data format and the complex structure make standard statistical tools difficult to apply. This article develops a computationally efficient method for exploratory analysis of such process data. The new approach segments a lengthy individual process into a sequence of short subprocesses to achieve complexity reduction, easy clustering and meaningful interpretation. Each subprocess is considered a subtask. The segmentation is based on sequential action predictability using a parsimonious predictive model combined with the Shannon entropy. Simulation studies are conducted to assess the performance of the new method. We use a case study of PIAAC 2012 to demonstrate how exploratory analysis for process data can be carried out with the new approach.     

崛起与建构——国内工程伦理学研究现状述评

近两三年来,对工程伦理的探讨构成了中国伦理学研究的一大亮点和理论生长点,研讨主要集中于工程伦理学的可能性、内涵、性质、研究对象和研究方法等方面.当前中国工程伦理学的研究还处于崛起的阶段,需要进一步加强跨学科的交流,系统建构起有中国特色的工程伦理学.     

概念及概念结构研究新进展

近来有关归类和概念结构的研究与理论出现了两个方面的转变。第一个方面是从概念定义属性的假设 (经典观 )到概念表征属性的观点 (概率观 ) ;第二个方面是从概念以相似性组织的观点到概念围绕理论而组织的观点。本文综合概述了基于相似性和理论驱动的归类理论。