Increased skills usage statistically mediates symptom reduction in self-guided internet-delivered cognitive–behavioural therapy for depression and anxiety: a randomised controlled trial

Cognitive–behavioural therapy (CBT) is an effective treatment for clinical and subclinical symptoms of depression and general anxiety, and increases life satisfaction. Patients’ usage of CBT skills is a core aspect of treatment but there is insufficient empirical evidence suggesting that skills usage behaviours are a mechanism of clinical change. This study investigated if an internet-delivered CBT (iCBT) intervention increased the frequency of CBT skills usage behaviours and if this statistically mediated reductions in symptoms and increased life satisfaction. A two-group randomised controlled trial was conducted comparing internet-delivered CBT (n = 65) with a waitlist control group (n = 75). Participants were individuals experiencing clinically significant symptoms of depression or general anxiety. Mixed-linear models analyses revealed that the treatment group reported a significantly higher frequency of skills usage, lower symptoms, and higher life satisfaction by the end of treatment compared with the control group. Results from bootstrapping mediation analyses revealed that the increased skills usage behaviours statistically mediated symptom reductions and increased life satisfaction. Although skills usage and symptom outcomes were assessed concurrently, these findings support the notion that iCBT increases the frequency of skills usage behaviours and suggest that this may be an important mechanism of change.     

Grain boundary phase observed in Al–5 at.% Zn alloy by using HREM

The nature and behaviour of grain boundary (GB) phases is very important since they can control strength, plasticity, resistivity, grain growth, corrosion resistance, etc, especially in nanocrystalline materials. For nanocrystalline Al-based light alloys, extremely high plasticity has been observed in restricted temperature and concentration intervals close to the solidus line. This phenomenon is not fully understood. It can be explained by formation of GB phases not included in the bulk phase diagram. Therefore, the structure of GB phases, as well as thermodynamic conditions for their existence, has to be carefully studied. In this work the structure and composition of GBs and GB triple junctions in Al–5 at.% Zn polycrystals annealed in the temperature region above and below the bulk solidus line were studied by high-resolution electron microscopy and analytical transmission electron microscopy. Evidence has been obtained that a thin layer of a liquid-like phase exists in GBs and GB triple junctions slightly below the bulk solidus line.     

阻塞性睡眠呼吸暂停低通气综合征对心血管系统的影响

阻塞性睡眠呼吸暂停低通气综合征(OSAHS)是常见却又不被广泛认识的疾病,可以导致多种器官和系统的损害,特别是心血管系统的损害.随着肥胖人群的增加,OSAHS的患病率有可能继续升高,这已经是一个重要的公共卫生问题,本文就OSAHS导致心血管疾病的发病机制,对常见心血管疾病的影响进行探讨.     

Young adult narcissism: A 20 year longitudinal study of the contribution of parenting styles, preschool precursors of narcissism, and denial

The role of parenting styles in the development of young adult narcissism is investigated with individuals from the Block and Block (1980) longitudinal study. At age 3, participants were assessed for the presence of narcissism precursors, and mothers and fathers provided information about their parenting styles. At age 23, the presence of both healthy and maladaptive narcissism was assessed, along with the use of denial. The results showed that parenting styles had a direct effect on the development of healthy narcissism, but the effect on the development of maladaptive narcissism depended on the child’s initial proclivity towards narcissism. Also, the use of denial was positively associated with the presence of maladaptive narcissism, but not with healthy narcissism.     

细菌耐药性及其防控中的理性思考

细菌对抗菌药物产生耐药性是自然界的普遍规律。抗菌药物的应用和研发与细菌耐药机制的发展互为因果且相互促进,细菌对抗菌药物的耐药性已对感染性疾病的治疗构成严重威胁。理性认识细菌耐药性产生的机制,并在其防控中进行理性思考是提高感染性疾病治愈率的根本所在。     

老年人行结肠镜检查相关问题探讨

结肠镜检查是一项广泛用于临床的直观有效的诊断结肠疾病的方法。对于整体机能减退的老年人来说,我们可从结肠镜前准备工作中的三个方面:肠道准备用药的比较选择、基础合并症的处理以及医患交流和心理护理提高老年患者对结肠镜的耐受性。     

Integrating the most unintuitive empirical observations of 2007 in the domain of personality and social psychology into a unified framework

Two obstacles impede the development of productive theories in personality, social, and organizational psychology. First, the distinct frameworks are seldom integrated; the various theories sometimes yield incompatible implications. Second, because many findings in these fields seem intuitive, these observations do not augment the validity of these theories. To override these issues, this paper integrates the 70 most unintuitive findings of 2007 into a unified framework, derived from personality systems interaction theory. Specifically, 10 participants extracted the most unintuitive observations from 17 scholarly journals. These findings were reconciled within a single framework that generates 41 testable propositions. The framework assumes that an associative self system, underpinned by a vast network of schemas, governs behavior as well as enhances intuition, engagement, creativity, and cooperation. When individuals experience a threat, this system is inhibited, unless the requisite defense mechanisms to accommodate potential hazards have been developed. Furthermore, individuals attempt to distance themselves from unassailable threats, which activate an analytical system that formulates plans that could accommodate future contingencies. These plans are retained in memory or executed if individuals have acquired sufficient confidence.     

内隐序列学习的表征机制及年龄效应研究

该研究从年龄效应这一独特视角探讨了内隐序列学习的表征机制。结果表明:(1)内隐序列学习存在具体联结和抽象层级编码双重表征机制,且在该研究中以抽象编码为主;(2)老、青、幼三组被试的内隐序列学习无显著差异,间接支持了具体联结机制不起主要作用的结论。该研究的推论是:(1)内隐序列学习的表征是一个遵循“最优级编码”的动态过程;(2)该过程不涉及注意机制和短时记忆。     

On the psychodynamics of collecting1

The urge to collect is a ubiquitous phenomenon which has anthropological, sociobiological and individual psychodynamic roots, but occurs far more frequently among men than women. The author examines the reasons for this gender difference and defi nes systematic collecting to distinguish it from addictive, obsessive and messy collecting, and from related phenomena such as perversion. The mode of collecting and choice of object are important indicators as to the unconscious psychodynamics of a collector and offer opportunity to describe his structural level. Collecting ranges across a broad spectrum, from an ego‐syntonic integrated mode, i.e. sublimation, to a neurotic defence against pre‐oedipal or oedipal traumas and confl icts. Alongside this drive‐theoretical approach, object and Kleinian theory are also applied to the understanding of collecting. Collecting represents a specifi c form of object relating and way of handling primary loss trauma, which is different from addiction, compulsion, or perversion. Under certain circumstances collecting can also result in a successful Gestalt or way of life. The paper concludes with a case study showing how collecting develops from a pre‐oedipal to a more integrated oedipal mode during the course of the analysis, which is refl ected in changes in the transference.     

Improving mother–child interaction in low‐income Turkish–Dutch families: A study of mechanisms mediating improvements resulting from participating in a home‐based preschool intervention program

This study examined whether the effects on cognitive and language outcomes of a recently developed home‐based educational intervention program, Opstap Opnieuw, for 4–6‐years‐old disadvantaged children could be explained by improved mother–child interaction. The present sample (n=30) was drawn from a larger sample of Turkish–Dutch families (n=181) for which in a previous study significant effects of Opstap Opnieuw were found on children's (first) language and cognitive pre‐math skill, 5 months after the program ended. The present study focused on two facets of interaction quality as possible mediators of these program effects: the mean cognitive distancing level of mothers' communication and instruction behaviour as an indicator of the cognitive and verbal stimulation provided, and the degree of cooperation as an indicator of mothers' social‐emotional support to their children. Both measures were based on systematic observation of mother–child interaction during sorting tasks. Participation in the program appeared to improve mothers' social‐emotional support behaviour substantially, but not their cognitive distancing behaviour. For Turkish (first language) vocabulary, about half of the program effect appeared to be mediated by the improved social‐emotional support. For cognitive pre‐mathematical skills, two‐thirds of the program effect appeared to be mediated by improved social‐emotional support. Mothers' cognitive distancing was moderately‐strongly related to children's vocabulary development, but did not mediate program effects. Some implications of the results are discussed. Copyright © 2004 John Wiley & Sons, Ltd.