决策权力和社会角色对混合动机冲突决策的影响

以最后报价谈判问题为实验材料,考察了混合动机冲突情境中决策权力和社会角色的影响。结果表明:(1)决策权力对决策者的决定有显著影响。拥有分配权的决策者倾向于采取竞争策略,拥有要求权的决策者倾向于采取平均分配策略,拥有否决权的决策者倾向于采取合作策略。(2)社会角色对决策者的决定有显著影响。与陌生人角色相比,担任好朋友角色的决策者决定得到的点数明显地更低。     

Mencius?? aesthetics and its position

Mencius’ aesthetics unfolded around the ideal personality in his mind. Such an ideal personality belonged to a great man who was sublime, practical and honorable, and it was presented as the beauty of magnificence or the beauty of masculinity. Mencius put forward many propositions such as “the completed goodness that is brightly displayed is called greatness,” nourishing “one’s grand qi 气 (the great morale personality),” “only after a man is a sage can he completely suits himself to his own form,” “the saints only apprehended before me that of which my mind approves along with other men,” being “conscious of sincerity on self-examination,” and flowing “abroad, above and beneath, like that of Heaven and Earth,” all of which described an ideal personality through the course of its formation and its psychological experience. As a prominent school before the Qin dynasty, Mencius’ aesthetics greatly developed the Confucian teaching of “internal sage.” It shared many similarities with Zhuangzi’s thought and was also an aesthetic mode opposed to the latter. Both kinds of aesthetics were prominent: Mencius’ teaching was like imposingly towering and muscularly overflowing majestic mountains; Zhuangzi’s thought was like gracefully flowing water with an air of femininity. In real life though, Mencius’ teaching has greater practical significance in addressing the unbearable lightness of being, a disease of modernity.     

状态相似性与流量限制模型

在可能世界语义中,如果根据是否含有模态算子而将一个点上为真的公式分为两类,那么可以认为不含模态算子的公式描述的是当前点的信息,其它公式描述的是其它点的信息,以及当前点与其它点的关系。通过对不同点上命题真值指派的比较,我们可以在可能世界语义模型上定义出一种状态相似性。本文构造了三类刻画状态相似性的模型,并给出了分别刻画其中两类模型的完全的系统。本文最后讨论这些模型在时态逻辑和信念逻辑中的应用。     

Visual orientation in a mirror world tilted 90 degrees

Previously, we showed that many supine observers in a furnished room tilted 90 degrees perceive themselves and the room as upright. We called this the "levitation illusion" because the arms feel weightless when held out from the body. We now report that a familiar scene viewed by supine observers through a mirror at 45 degrees appears vertical when, optically, it is horizontal and above the head. However, the body feels pitched upright only partially. This visual-righting effect, like the levitation illusion, is due to the polarity axis of the scene being accepted as vertical even in the presence of conflicting information from the gravity sense organs. In experiment 1 we tested the potency of objects containing either intrinsic polarity (due to familiar tops and bottoms) or extrinsic polarity (due to support relationships) to generate a visual-righting illusion. To almost all observers, a blank surface seen in the mirror appeared like a ceiling. A scene containing an object with intrinsic polarity, such as a chair or person, seen in the mirror appeared vertical to almost all observers. A scene containing a pair of objects with only extrinsic polarity, such as a ball on a shelf (but not a ball under a shelf), also appeared vertical to most observers. In experiment 2 we found that a polarised scene was more likely to produce a visual-righting illusion when it was arranged as a view through a window rather than as a picture inside a room.     

The statistical analysis of general processing tree models with the EM algorithm

Multinomial processing tree models assume that an observed behavior category can arise from one or more processing sequences represented as branches in a tree. These models form a subclass of parametric, multinomial models, and they provide a substantively motivated alternative to loglinear models. We consider the usual case where branch probabilities are products of nonnegative integer powers in the parameters, 0_s1, and their complements, 1 - _s. A version of the EM algorithm is constructed that has very strong properties. First, the E-step and the M-step are both analytic and computationally easy; therefore, a fast PC program can be constructed for obtaining MLEs for large numbers of parameters. Second, a closed form expression for the observed Fisher information matrix is obtained for the entire class. Third, it is proved that the algorithm necessarily converges to a local maximum, and this is a stronger result than for the exponential family as a whole. Fourth, we show how the algorithm can handle quite general hypothesis tests concerning restrictions on the model parameters. Fifth, we extend the algorithm to handle the Read and Cressie power divergence family of goodness-of-fit statistics. The paper includes an example to illustrate some of these results.This research was supported by National Science Foundation Grant BNS-8910552 to William H. Batchelder and David M. Riefer. We are grateful to David Riefer for his useful comments, and to the Institute for Mathematical Behavior Sciences for its support.     

高中生心理健康水平及其影响因素的研究

采用ＳＣＬ－９０量表评定了５００名高中生的心理健康状况,运用因素分析的方法探讨了影响高中生心理健康的主要因素。结果表明：有１０．８％的高中生存在着各种明显的心理健康问题;高中生的心理健康问题主要表现为强迫、敌对、偏执、人际关系敏感和忧郁等症状;影响高中生心理健康的主要因素为学校教育、家庭环境、社会文化及学生自身等方面的生活事件;高中生不同的心理健康问题有其不同的影响因素。     

Global and Regional Perspectives on Testing Children and Youth: An Empirical Study

The results of an international survey of test use in 44 countries are reported. Data are presented and discussed for six groupings: highly industrialised, less industrialised Western, developing Third World, socialist, Middle East, and least developed nations. A total of 740 tests were identified. A number of similarities exist among the six groupings in their test use. Intelligence tests are most commonly used followed by personality and achievement tests. Important differences also exist. For example, the developing Third World and Middle East nations use more group than individually administered tests and fewer achievement tests. Many tests lack reliability and validity studies and norms. Additional tests are needed to assess achievement, intelligence, social development, personality, and vocational interests and aptitudes. Tests are especially needed for children and youth who are learning disabled, mentally retarded, and slow learners. Problems created by these conditions and implications of the frequent use of foreign developed tests are discussed.     

小剂量吗啡对大鼠活动性的影响

腹腔注射不同剂量吗啡,观察各组大鼠在给药后不同时间的活动性（ｌｏｃｏｍｏｔｏｒａｃｔｉｖｉｔｙ,ＬＡ）,连续给药８天,每天给药后９５ｍｉｎ内,每间隔１５ｍｉｎ,记录大鼠５ｍｉｎ内在限定空间中所走格数。结果表明：随吗啡给药剂量或次数增加,ＬＡ呈升高趋势;使大鼠ＬＡ明显兴夯的适宜低剂量为４ｍｇ／ｋｇ／ｄａｙ,该剂量下每天药后１５－２０ｍｉｎＬＡ为峰值,而且此时段ＬＡ逐日升高,至第８日出现下降趋势,此毕     

Investigating behavior inhibition in obsessive-compulsive disorder: Evidence from eye movements

We investigated the role of inhibition failure in Obsessive Compulsive Disorder (OCD) through an eye tracking experiment. Twenty-five subjects with OCD were recruited, as well as 25 with Generalized Anxiety Disorder (GAD) and 25 healthy controls. A 3 (group: OCD group, GAD group and control group) × 2 (target eccentricity: far and near) × 2 (saccade task: prosaccade and antisaccade) mixed design was used, with all participants completing two sets of tasks involving both prosaccade (eye movement towards a target) and antisaccade (eye movement away from a target). The main outcome was the eye movement index, including the saccade latency (the time interval from the onset of the target screen to the first saccade) and the error rate of saccade direction. The antisaccade latency and antisaccade error rates for OCDs were much higher than those for GADs and healthy controls. OCDs had longer latency and error rates for antisaccades than for prosaccades, and for far-eccentricity rather than near-eccentricity stimuli. These results suggest that OCDs experience difficulty with behavior inhibition, and that they have higher visual sensitivity to peripheral stimuli. In particular, they show greatest difficulty in inhibiting behavior directed towards peripheral stimuli.     

法显西行起始及归国时间考--兼论“南国律学道士”

佛教东传后,我国西行求法的高僧代不乏人,其中东晋时期的法显法师“创辟荒途”[1],乃是我国历史上第一批到达印度的僧人,而且是第一位从陆路去、海路回的僧人。本文就法显西行求法的起始时间、归国时间及与之相关的“南国律学道士”等问题作一考察。