The interaction of criterion and feedback information in learning a drawing task

Experiments were designed to examine the influence of criterion and feedback information in the learning of a two-dimensional drawing task. Experiment 1 showed that when the task criterion is well known to the subject, the combined presentation of criterion information and information feedback facilitates the rate of acquisition of the skill but not its overall performance level of achievement. Experiment 2 showed that when the task criterion information is not well known to the subject, presentation of criterion information facilitates both the rate of acquisition and the overall performance level and, furthermore, is essential if configuration information feedback is to be utilized effectively. Experiment 3 showed that it is the combined presentation of criterion and configuration information feedback rather than the isolate presentation of either type of information alone, that facilitates learning and performance. Collectively, the findings from the three experiments suggest an interactive effect of prior knowledge by the learner and type of augmented information in facilitating the acquisition of skill, according to the constraints imposed in the task. The data are consistent with the proposal that the degrees of freedom in the information available to support motor skill learning must match the degrees of freedom to be constraint in the perceptual-motor workspace.     

卢卡奇的晚期哲学

讨论老年卢卡奇的哲学,不应该把我们的分析只是局限于二次大战以后,因为他的晚期哲学同他20世纪30年代的理论著作之问的连续性极其重要,如果我们不考虑到包含在他战前或战时著作中的哲学观点,那么甚至他的最后两部著作,即《审美特征》和《社会存在的本体论》,我们都无法理解。     

多值逻辑内部的弗协调结构

在本文中,我们要区分出一些足以构造弗协调逻辑的多值逻辑的最低限度的函数方法,借此来确定作为片断而包含在弗协调逻辑内的多值逻辑这个极大的类。这样,就能够讨论多值逻辑内部的弗协调结构,就象大家讨论多值逻辑内部中的模态结构那样,而且还可表明:从多值逻辑中区分出的     

社会主义生产关系的表现形式

一、社会主义生产关系的物化生产、分配、交换、消费以及经济关系的所有不同形态在实践中差不多总是表现为物的关系。生产关系直接或间接地同物发生联系。人生活和活动在物质世界中,与他人有密不可分的联系。但是,这种同他人的联系,在很大程度上是通过物表现出来的。一些人生产产品,而另一些人则消费产品。随着社会分工的发展,这种某一个人生产的产品被另一个人用于生产或者个人的消费的情况,正在越来越普遍。反之,每一个人消费的并不是他所生产的。一个人生产的物被另一个人所消费。物不仅应该通过生产过程,而且在进入消费之前还要通过分配和交换的过程。因此,在生产     

Invisible support and adjustment to stress

Although there is abundant evidence that perceived availability of support buffers the effects of stressors on mental health, the relatively meager research on support transactions has failed to show an association between actual receipt of support and adjustment to stressors. The authors examined a possible explanation for this inconsistency, that awareness of receiving support entails an emotional cost and that the most effective support is unnoticed by the recipient. Using data from a daily diary study of support provision and receipt in couples, the authors show that many transactions reported by supporters are not reported by recipients. They also show that these invisible support transactions promote adjustment to a major stressor.     

Professional Autonomy and the Normative Structure of Medical Practice

Professional autonomy is often described as a claim of professionalsthat has to serve primarily their own interests. However, it can also beseen as an element of a professional ideal that can function as astandard for professional, i.e. medical practice. This normativeunderstanding of the medical profession and professional autonomy facesthree threats today. 1) Internal erosion of professional autonomy due toa lack of internal quality control by the medical profession; 2)the increasing upward pressure on health care expenses that calls for ahealth care policy that could imply limitations for the professionalautonomy of physicians; 3) a distorted understanding of theprofession as being based on a formal type of knowledge and relatedtechnology, in which other normative dimensions of medical practice areneglected and which frustrates meaningful communication betweenphysicians and patients. To answer these threats a normative structureanalysis of medical practice is presented, that indicates whichprinciples and norms are constitutive for medical practice. It isconcluded that professional autonomy, normatively understood, should bemaintained to avoid the lure of the technological imperative and toprotect patients against third parties' pressure to undertreatment.However, this professional autonomy can only be maintained if members ofthe profession subject their activities and decisions to a criticalevaluation by other members of the profession and by patients and ifthey continue to critically reflect on the values that regulate today'smedicine.     

Factors associated with outcome of cognitive-behavioural treatment of chronic post-traumatic stress disorder

The study examined factors that were associated with outcome in the treatment of PTSD. A trial of cognitive therapy compared to imaginal exposure of chronic PTSD showed that although clinical improvements were obtained after treatment and at 6 month follow-up one type of treatment was not significantly superior to the other. Characteristics of the patient, the trauma and treatment and of pretreatment clinical measures were investigated as predictors of PTSD outcome. Eleven variables were significantly associated with the pre- to post-treatment change in CAPS severity scores. Of these, three (duration of therapy, gender and suicide risk) were selected into a step-wise multiple regression equation to explain 36.5% of the outcome. Similarly, nine variables were significant associated with the pretreatment to follow-up change with three variables (number of missed therapy sessions, residential status and co-morbid GAD) being selected into the equation and explaining 36.9% of the outcome. The best predictor of outcome was inconsistent attendance at therapy.     

Responsibility attitudes and interpretations are characteristic of obsessive compulsive disorder

The cognitive-behavioural theory of Obsessive Compulsive Disorder (OCD) proposes that a key factor influencing obsessional behaviour is the way in which the intrusive cognitions are interpreted. The present paper reports an investigation of links between clinical symptoms (of anxiety, depression and obsessionality) and responsibility beliefs. These beliefs include not only measures of general responsibility attitudes (assumptions) but also more specific responsibility appraisals consequent on intrusive cognitions. The characteristics of two new questionnaires specifically designed to measure these beliefs were assessed in patients suffering from Obsessive Compulsive Disorder, in patients suffering from other anxiety disorders and in non-clinical controls. The scales measuring negative beliefs about responsibility were found to have good reliability and internal consistency. Comparisons between criterion groups indicate considerable specificity for both assumptions and appraisals with respect to OCD. There was also good evidence of specificity in the association between responsibility cognitions and obsessional symptoms across groups, and that this association was not a consequence of links with anxiety or depressive symptoms. Although the two measures were correlated, they each made unique contributions to the prediction of obsessional symptoms. Overall, the results are consistent with the hypothesis that responsibility beliefs are important in the experience of obsessional problems.