Socially Constructed Technology

The concepts of omniscience and omnipotence are defined in 2 × 2 ordinal games, and implications for the optimal play of these games, when one player is omniscient or omnipotent and the other player is aware of his omniscience or omnipotence, are derived. Intuitively, omniscience allows a player to predict the strategy choice of an opponent in advance of play, and omnipotence allows a player, after initial strategy choices are made, to continue to move after the other player is forced to stop. Omniscience and its awareness by an opponent may hurt both players, but this problem can always be rectified if the other player is omniscient. This pathology can also be rectified if at least one of the two players is omnipotent, which can override the effects of omniscience. In some games, one player's omnipotence ‐ versus the other's ‐ helps him, whereas in other games the outcome induced does not depend on which player is omnipotent. Deducing whether a player is superior (omniscient or omnipotent) from the nature of his game playing alone raises several problems, however, suggesting the difficulty of devising tests for detecting superior ability in games.     

螺旋CT小肠造影及传统气钡双重对比造影检查在诊断小肠肿瘤性疾病中的价值比较

为了探讨螺旋CT小肠造影（CT enterograph,CTEG）及传统气钡双重对比造影检查在诊断小肠肿瘤性疾病中的价值。回顾性分析小肠肿瘤50例,患者先后行CTEG及传统气钡双重对比造影检查,所得图像由3位放射科医师进行评价。结果显示,50例小肠肿瘤性病变CTEG检查敏感性94％,准确性90％。传统气钡双重对比造影检查敏感性100％,准确性86％。两种方法相结合准确性98％。CTEG及传统气钡双重对比造影检查结合应用可作为小肠肿瘤诊断和评估治疗的必要的检查方法。     

不同认知方式个体图形一致性判断过程中的ERP研究

使用ERP技术对选取的27名右利手大学生（场独立14名,场依存13名）在图形一致性判断过程中的ERP进行分析,结果表明：1）在图形一致性的判断任务中,场依存者的前额叶与中央区在200ms之前的N85与P160峰-峰之差明显大于场独立者,在枕叶区的负波N120波幅明显高于场独立者,这说明场依存者在对图形一致性比较的视觉信息处理的早期阶段即进行了更深度的加工。2）场独立者的N290波幅高于场依存者,而N290潜伏期比场依存者明显的长,这说明场独立者在后期对图形进行了更深入的分析比对。     

Evaluating Corroborative Evidence

How should we evaluate an argument in which two witnesses independently testify to some claim? In fact what would happen is that the testimony of the second witness would be taken to corroborate that of the first to some extent, thereby boosting up the plausibility of the first argument from testimony. But does that commit the fallacy of double counting, because the second testimony is already taken as independent evidence supporting the claim? Perhaps the corroboration effect should be considered illogical, since each premise should be seen as representing a separate reason in a convergent argument for accepting the claim as plausible. In this paper, we tackle the problem using argumentation schemes and argument diagramming. We examine a number of examples, and come up with two hypotheses that offer methods of analyzing and evaluating this kind of evidence.     

特征框架效应的心理机制与影响因素

特征框架效应是指当分别以积极框架和消极框架来描述给定情境中某一事物或事件的关键特征时, 一般情况下人们更偏好以积极框架来描述其关键特征的事物或事件的现象。特征框架效应广泛的存在于消费、医学及政治等领域。目前, 它的解释机制主要包括效价加工的认知机制、参照依赖、查询理论以及认知神经机制。它的影响因素主要包括经验、人格特质、计算能力以及认知闭合需要等。未来的研究应该从深入探索特征框架效应的产生根源和影响因素, 拓展其应用研究, 深入探索偏好消极框架下的特征框架效应以及探讨该现象与其它现象之间的关系等五方面展开。     

Investigating the Big Five Personality Factors and Smoking: Implications for Assessment

Global personality dispositions may be important for understanding population-based individual differences in smoking outcomes, yet few studies have been executed using measures of these global dispositional constructs from the contemporary field of personality. This study explored whether the Big Five personality factors (Extraversion, Neuroticism, Agreeableness, Conscientiousness, and Intellect) were concurrently associated with key smoking (e.g., nicotine dependence, smoking rate, age at first cigarette) and cessation (e.g., self-efficacy to quit, motivation to quit, number of prior quit attempts, length of most recent quit) variables in a sample of regular smokers (n = 130). Of the 35 correlations computed, only 2 were significant: Intellect was positively correlated with motivation to quit and number of 24-hr quit attempts in the last year. These results have implications for using trait variables to study individual differences in smokers.     

高中生认知方式特点及其与学绩关系的研究

采用认知方式图形测验,对94名普通高中生进行实验研究,探讨了当前普通高中生认知方式特点及其与学绩的关系。结果表明：随着年级的增高,高中生的场独立性增强。高中生的认知方式场依存性、场独立性与学习成绩的相关不显著。在初中毕业刚进入高中,学生的认知方式存在显著的性别差异,但随着年级增长、个体成熟,这种差异逐渐缩小。文理分科对高中生的认知方式发展没有明显的影响。     

Effects on Episodic Memory of Stimulus Richness, Intention to Learn, and Extra-Study Repetition: Similar Profiles Across the Adult Life Span

The ability to benefit from various kinds of cognitive support in episodic memory was studied in a population-based sample of healthy adults aged 35–80 years (N = 1,000). The participants studied pictures of faces and names of 10-year-old children with instructions to remember the faces and the surnames. After study, an implicit name stem-completion test was administered, followed by face- and name-recognition tests. There was a negative age effect across all task variables. Across age, recognition was higher for faces than for names. An age-invariant positive effect of intention to learn was observed. Also, name completion and recognition performance showed a positive relationship across the adult life span. Overall, the results are in agreement with the views that (a) age-related episodic memory deficits are highly generalizable and (b) effects of cognitive support on memory are typically of equal size across the adult life span.     

双螺旋的发现与生物学的统一

双螺旋的发现和遗传密码的破译是20世纪激动人心的大事。在生物学的这个发展过程中,洛克菲勒基金会对应用物理学方法研究分子生物学问题的资助以及大批物理学家向生物学的转移对分子生物学的发展起到了重要的推动作用。选择战略性的课题,善于学习和鉴别已有的研究成果,站在巨人的肩上,是沃森和克里克成功的关键。双螺旋的发现不仅揭示了遗传的奥秘,而且促进了生物学的统一。