Event-related potentials in adolescents with combined ADHD and CD disorder: a single stimulus paradigm

Some studies of the event-related potentials demonstrated a reduction of the voluntary component P3 (P300 or P3b) in youngsters with the attention deficit/hyperactivity disorder (ADHD) or in conduct disorders (CD), and a reduction of the automatic processing component, mismatch negativity, in patients with both ADHD and CD (ADHD+CD). Recently, a passive auditory P3 potential has been elicited by a single stimulus. We therefore tried this potential study in 20 healthy subjects and 20 teenagers with ADHD+CD to search for further evidence of the altered automatic cerebral processing in the latter. Subjects also answered a self-report Dimensional Assessment of Personality Pathology (DAPP). The patient group scored significantly higher on most DAPP traits that reflect problems of emotion control, showed significantly prolonged P2, N2, and P3, and reduced P3. In all subjects Stimulus Seeking was positively correlated with P3 latencies at Fz, Cz, and Pz, and with P3 amplitude at Cz. This study suggests that youngsters with ADHD+CD had pronounced emotion dysregulation, and prominent deficit in passive attention, as reflected by the automatic processing of auditory stimuli.     

The influence of averaging and noisy decision strategies on the recognition memory ROC

Many single- and dual-process models of recognition memory predict that the ratings and remember-know receiver operating characteristics (ROCs) are the same, but Rotello, Macmillan, and Reeder (2004) reported that the slopes of the remember-know and ratingsz-transformed ROCs (zROCs) are different. The authors show that averaging introduces nonlinearities to the form of thezROC and that ratings and remember-knowzROCs are indistinguishable when constructed in a conventional manner. The authors show, further, that some nonoptimal decision strategies have a distinctive, nonlinear effect on the form of the single-process continuous-statezROC. The conclusion is that many factors having nothing to do with the nature of recognition memory can affect the shape ofzROCs, and that therefore, the shape of thezROC does not, alone, characterize different memory models.     

Understanding when bad moods foster creativity and good ones don't: the role of context and clarity of feelings

Using a mood-as-input model, the authors identified conditions under which negative moods are positively related, and positive moods are negatively related, to creative performance. Among a sample of workers in an organizational unit charged with developing creative designs and manufacturing techniques, the authors hypothesized and found that negative moods were positively related to creative performance when perceived recognition and rewards for creative performance and clarity of feelings (a metamood process) were high. The authors also hypothesized and found that positive moods were negatively related to creative performance when perceived recognition and rewards for creativity and clarity of feelings were high.     

知情同意在中国不适用吗——“文化差异论”的认知错误

知情同意是在当代生命伦理学中最有影响的概念,在大多数西方国家它已成为医疗实践和涉及人体的医学科学研究的一个基本的伦理要求。不少西方和中国学者认为,由于中西文化显著而根本的差异,知情同意不适宜于中国。指出了“文化差异论”的三个认知错误,即,文化差异论是建立在对中国文化和医学道德、西方文化以及知情同意的一系列误解之上的。基于文化的差异而拒绝知情同意在中国的适用性和必要性,显然不能成立。     

邵雍先天易“天地自然之数”一解——对冯友兰先生《邵雍的“先天学”》的两点补充

作者通过对冯友兰先生《邵雍的“先天学”》的两点补充,认为．邵雍“先天易”图的六十四卦卦序按二进制六位数的大小依次排列而来．此即是宋代道学家所谓的“天地自然之数”。作者由此进一步揭示了先天卦序与阴阳生息的卦气思想之同．在一定程度上的某种暗合与实质上的相互矛盾。     

Study of γ/γ′ interfacial width in a nickel-based superalloy by scanning transmission electron microscopy

The γ/γ′ interfaces are thought to play an important role in determining the mechanical properties in single-crystal nickel-based superalloys. In this article, interfacial width in DD6, one second-generation single-crystal superalloy containing 2 wt% Re, has been studied by means of scanning transmission electron microscopy. From an atomic resolution high angle annular dark field image, both compositional interfaces and order–disorder interfaces are studied, and it is first found that the interfacial width of chemical composition is same with that between the ordered and disordered phases.     

字谜顿悟任务中限制解除和组块分解的机制及其原型启发效应

通过3个实验考察了汉字字谜任务中的限制解除和组块分解机制及其原型启发效应。实验1a表明,字谜的常规型语义比字谜型语义更容易激活,实验1b采用“学习-测试”范式,结果表明在学习阶段启动字谜语义比启动常规语义更有利于测试阶段的常规语义限制的解除。因此实验1表明常规语义和字谜语义的通达性差异是限制形成和限制解除的认知机制。实验2表明,涉及镶嵌或者笔画单元分解的紧组块比相应的松组块解答率更低,反应时更长,这表明组块分解是字谜顿悟的机制之一。实验3通过实验3a和实验3b分别揭示了在限制解除和组块分解上原型启发比非原型启发以及无启发有更大的促进作用。总之,本研究揭示,汉字字谜任务中存在限制解除和组块分解机制并且原型启发可以促进二者的发生。     

问题结构因素对伦敦塔问题解决的影响

以121名2,4,6年级小学生为被试,采用计算机呈现的方式,探讨了子目标和次佳路径这两个问题结构因素对伦敦塔问题解决表现的影响。结果发现：子目标和次佳路径两个因素存在交互作用,解决有子目标－无次佳路径问题时的计划指标要高于其他类型问题。根据被试在伦敦塔任务上的表现,划分为三大类7种表现类型。当存在不同的问题结构因素时,问题解决表现类型体现出差异性。     

Two Concepts or Two Approaches? A Bifactor Analysis of Psychological and Subjective Well-Being

Researchers often debate about whether there is a meaningful differentiation between psychological well-being and subjective well-being. One view argues that psychological and subjective well-being are distinct dimensions, whereas another view proposes that they are different perspectives on the same general construct and thus are more similar than different. The purpose of this investigation was to examine these two competing views by using a statistical approach, the bifactor model, that allows for an examination of the common variance shared by the two types of well-being and the unique variance specific to each. In one college sample and one nationally representative sample, the bifactor model revealed a strong general factor, which captures the common ground shared by the measures of psychological well-being and subjective well-being. The bifactor model also revealed four specific factors of psychological well-being and three specific factors of subjective well-being, after partialling out the general well-being factor. We further examined the relations of the specific factors of psychological and subjective well-being to external measures. The specific factors demonstrated incremental predictive power, independent of the general well-being factor. These results suggest that psychological well-being and subjective well-being are strongly related at the general construct level, but their individual components are distinct once their overlap with the general construct of well-being is partialled out. The findings thus indicate that both perspectives have merit, depending on the level of analysis.     

舒肝宁与还原型谷胱甘肽对急性肝损害的疗效比较

为比较舒肝宁与还原型谷胱甘肽(GSH)治疗急性肝损害的疗效,选择100例急性肝损害的患者,随机分为治疗组与对照组各50例.分别给予舒肝宁与GSH治疗,疗程4周.结果,两组转氨酶下降差异无显著性,而在总胆红素(TBIL),直接胆红素(DBIL)及胆汁酸下降方面治疗组优于对照组.因此,舒肝宁在对急性肝损害的退黄方面疗效显著.