睡眠剥夺时大鼠电休克阈值的变化

我们在研究睡眠剥夺影响大鼠记忆巩固的实验中,观察到睡眠剥夺引起大鼠条件反射的反应时(R T_(CR))明显缩短。我们认为,这可能反映了动物在睡眠剥夺后脑的兴奋性有所升高,本实验用电休克阈值作指标验证这一看法。     

The dispositional shift in attribution over time

Two experiments examined the effect of time on causal attributions. In Experiment I, subjects who described themselves into a tape recorder assumed more personal responsibility for their behavior after 3 weeks' time than others who explained their behavior immediately after its occurrence. In Experiment II, actor-subjects took part in a getting acquainted conversation and explained their behavior more dispositionally and less situationally after 3 weeks' time than they had initially, while observer-subjects experienced no change over time. Results were interpreted in terms of an altered self-perspective in memory and the diminished salience of situational details over time.     

入手术室时的情绪状态和某些心理、生理机能的联系及其和针麻效果的关系

情绪活动和某些生理机能或心理过程的关系很久以来就已进行过大量的研究。外科手术前患者的情绪状态及其相应的生理机能的变化,也曾受到注意。患者在意识清醒状态下进行针麻手术,他的情绪状态对针麻过程及其效果的作用如何,这种情绪状态和某些心理、生理机能有什么联系?这是针麻临床上和理论上应予探讨的问题之一。本工作试图综合分析患者的情绪状态和与之伴随的某些生理生化指标变化,以探讨     

老化的年龄标识:主观年龄对老年人主观老化体验的影响

为证明年龄对老化的标识作用,研究假设降低被试的主观年龄可减少老年人的主观老化体验。采取实验组控制组前测后测设计,以主观年龄为自变量,分为"等于年代年龄"(控制组)和"小于年代年龄10±5岁"(实验组)两种水平,随机分配至两组的62名老年被试填写《个人老化体验问卷》,评估其主观老化体验。结果显示,实验组在后测中的主观老化体验不仅显著低于本组前测,也显著低于控制组,且这一结果不受被试最初自评的主观年龄影响。原假设得到证明,支持年龄对老化的标识作用。年龄标识对老化意义的简单化建构了世俗的绝对老化观。     

A note on computing Louis’ observed information matrix identity for IRT and cognitive diagnostic models

Using Louis’ formula, it is possible to obtain the observed information matrix and the corresponding large-sample standard error estimates after the expectation–maximization (EM) algorithm has converged. However, Louis’ formula is commonly de-emphasized due to its relatively complex integration representation, particularly when studying latent variable models. This paper provides a holistic overview that demonstrates how Louis’ formula can be applied efficiently to item response theory (IRT) models and other popular latent variable models, such as cognitive diagnostic models (CDMs). After presenting the algebraic components required for Louis’ formula, two real data analyses, with accompanying numerical illustrations, are presented. Next, a Monte Carlo simulation is presented to compare the computational efficiency of Louis’ formula with previously existing methods. Results from these presentations suggest that Louis’ formula should be adopted as a standard method when computing the observed information matrix for IRT models and CDMs fitted with the EM algorithm due to its computational efficiency and flexibility.     

Correction to: Suicidal Mental Imagery in Psychiatrically Hospitalized Adolescents

Research on Child and Adolescent Psychopathology - A correction to this paper has been published: https://doi.org/10.1007/s10802-021-00827-8     

Achieving Effective Remote Working During the COVID-19 Pandemic: A Work Design Perspective

Existing knowledge on remote working can be questioned in an extraordinary pandemic context. We conducted a mixed-methods investigation to explore the challenges experienced by remote workers at this time, as well as what virtual work characteristics and individual differences affect these challenges. In Study 1, from semi-structured interviews with Chinese employees working from home in the early days of the pandemic, we identified four key remote work challenges (work-home interference, ineffective communication, procrastination, and loneliness), as well as four virtual work characteristics that affected the experience of these challenges (social support, job autonomy, monitoring, and workload) and one key individual difference factor (workers’ self-discipline). In Study 2, using survey data from 522 employees working at home during the pandemic, we found that virtual work characteristics linked to worker's performance and well-being via the experienced challenges. Specifically, social support was positively correlated with lower levels of all remote working challenges; job autonomy negatively related to loneliness; workload and monitoring both linked to higher work-home interference; and workload additionally linked to lower procrastination. Self-discipline was a significant moderator of several of these relationships. We discuss the implications of our research for the pandemic and beyond.     

和平心理学的经典传统与现代研究趋向

本文讨论了不同历史时期的心理学家对和平心理的看法,以“和平”为主线,追溯和平心理学思潮兴起的历史逻辑。毕达哥拉斯、恩培多克勒、柏拉图、奥古斯丁、夸美纽斯、康德等从本体论视角,确立了实现永久和平的理想追求。冯特的民族心理学重视研究原始人、战争英雄等的和平心理品质,早期的意动心理学重视人类和平意识研究,机能心理学强调通过建设学校“微型共同体”,提高儿童的和平意识。精神分析心理学则为战争与和平心理提供了新视角。人本主义心理学主张研究人的和平潜能、致力于世界和平冲突化解,推动了和平心理学的兴起。20世纪末的和平心理学主张用和平的方式实现和平,发生了“政治道歉”、和平冲突化解、“人类命运共同体”等研究趋向。     

自然数码奇象记忆法记忆复杂数字的神经机制

本研究采用学习-再认范式和复杂数字记忆材料,考察自然数码奇象记忆法相对于机械记忆法在记忆提取上的优势及神经机制。行为结果表明,自然数码奇象记忆法比机械记忆法的再认准确率更高。事件相关电位分析结果显示,再认提取阶段奇象记忆条件下诱发的N400和N700波幅显著更低,这说明奇象记忆提取更容易。在自然数码奇象记忆条件下,正确再认旧数字诱发的前额区、左顶枕叶区及中顶枕叶区N700成分与使用自然数码奇象记忆有关。本研究表明,采用自然数码奇象记忆可以减少或跨越语义加工,从而提高个体对材料的记忆效率。     

情绪智力对大学生生活满意度的影响:生涯适应力的中介作用与压力性生活事件的调节作用

选用情绪智力量表、生涯适应力量表、压力性生活事件量表和生活满意度量表对921名大学生进行调查,分析了情绪智力、生涯适应力、压力性生活事件和生活满意度之间关系。结果表明:(1)生涯适应力部分中介了情绪智力与大学生的生活满意度之间的关系;(2)压力性生活事件调节了这一中介过程的后半路径。因此,在情绪智力与大学生生活满意度的关系中,生涯适应力起到了部分中介作用,压力性生活事件起到了调节作用。