Mood change and marathon running: A pilot study using a Swedish version of the POMS test

Regular exercise is said to have positive effects on mood, especially if the exercise intensity is low to moderate. However, the acute effects resulting from participation in a strenuous competition, such as a marathon race, have been studied less. The present investigation used the Profile of Mood States (POMS) test to measure mood, before and after the 1989 Stockholm Marathon. A total of 106 male runners (mean age 40.0 years), with finishing times between 3h and 3h 45 min participated as subjects. Results showed great changes between pre- and post-marathon scores, most of them significant at the p less than 0.001 level. Furthermore, differences between a faster and a slower group of runners were demonstrated with regard to mood states, even though plasma glucose levels were comparable. It is concluded that participation in a marathon race greatly effects mood, mainly in a more negative way than low to moderately intense exercise does.     

Bed-sharing, breastfeeding and maternal moods in Barbados

Bed-sharing among Barbadian mothers and infants was studied in relationship to maternal and infant characteristics. This prospective study followed 226 healthy, well-nourished mother–infant dyads at birth, 7 weeks, 3 months, and 6 months postpartum. At each age, approximately half of the infants shared the same beds as their mothers. Bed-sharing was associated with demographic characteristics, especially fewer home conveniences, and also maternal characteristics, including less information seeking by the mother and younger maternal age at first pregnancy. Bed-sharing was also associated with lower infant birth weights. Maternal moods were significantly correlated with bed-sharing, such that mothers who reported having more despair and anxiety were also more likely to sleep with their infants. Bed-sharing was also significantly associated with increased breastfeeding at all infant ages, but this relationship was no longer significant once the effects of maternal moods were controlled. This study emphasizes the importance of assessing maternal moods in studies evaluating the risk and benefits of bed-sharing.     

Projectibility and Explainability or How to Draw a New Picture of Inductive Practices

Summary  Goodman published his “riddle” in the middle of the 20th century and many philosophers have attempted to solve it. These attempts almost all shared an assumption that, I shall argue, might be wrong, namely, the assumption that when we project from cases we have examined to cases we have not, what we project are predicates (and that this projectibility is an absolute property of some predicates). I shall argue that this assumption, shared by almost all attempts at a solution, looks wrong, because, in the first place, what we project are generalizations and not predicates, and a generalization is projectible (or unprojectible) relative to a given context. In this paper I develop the idea of explainable–projectible generalizations versus unexplainable–unprojectible generalizations, relative to a specific context. My main claim is that we rationally project a generalization if and only if we rationally believe that there is something that explains the general phenomenon that the generalized statement in question asserts to obtain, and that a generalization is projectible, if and only if its putative truth can be explained, whether we know that it can be or not.     

Patterns and predictors of change in energy and mood around a vacation from the workplace: Distinguishing the effects of supplemental work activity and work-related perseverative cognition

This study contributes to the vacation literature by exploring predictors of change in school teachers' negative affective states around a 2-week (Christmas) vacation. Drawing from a combination of self-regulatory and effort-recovery theoretical principles, we hypothesized that supplemental work activity during the vacation might have some positive consequences for mood state, while simultaneously impairing the ability to recover from work-related exhaustion. Ninety teachers completed measures across eight consecutive weeks, spanning the period before, during and after vacation (710 observations in total). Teachers' weekly levels of emotional exhaustion, anxious mood and depressed mood decreased significantly from before to during the vacation. Following the vacation, anxious mood showed the most rapid rate of increase, returning to its prevacation level within 2 weeks of work resumption. Exhaustion and depressed mood re-emerged more gradually across 4 consecutive weeks following the vacation. Supplemental work activity during the vacation was associated with weaker recovery from exhaustion, but did not exhibit a detrimental relationship with change in anxious or depressed mood. Of note, supplemental working during the vacation was associated with a less pronounced re-emergence of anxious mood after the vacation. Work-related perseverative cognition (worry and rumination) during the vacation impeded energy restoration and mood repair and was related to faster fade out of beneficial vacation effects. These findings demonstrate the utility of examining discrete energy and mood states in respite research, reveal the mixed functions of engaging in supplemental work activity during vacations and highlight the harmful impact of perseverative cognition on the recovery from work process.     

青少年早期网络欺凌/受欺凌对睡眠质量的影响：社交焦虑和抑郁情绪的链式中介作用

基于压力认知失眠模型,采用网络欺凌/受欺凌问卷、青少年社交焦虑问卷、流调中心抑郁问卷和匹兹堡睡眠质量指数问卷,对582名中小学生进行三次追踪测查,每次间隔半年,并运用结构方程模型考察社交焦虑和抑郁情绪在网络欺凌/受欺凌对睡眠质量的影响的中介作用及其性别差异。结果表明：(1)社交焦虑和抑郁情绪在网络欺凌/受欺凌影响睡眠质量的路径中均起到链式中介作用;(2)网络欺凌/受欺凌影响睡眠质量的链式中介模型存在性别差异。这启示要改善网络欺凌者与受欺凌者的睡眠质量,应关注网络欺凌给他们带来的情绪困扰,只有从根本上解决其情绪问题,才能最终有效促进其睡眠质量。     

Induction of Relational Schemas: Common Processes in Reasoning and Complex Learning

Five experiments were performed to test whether participants induced a coherent representation of the structure of a task, called a relational schema, from specific instances. Properties of a relational schema include: An explicit symbol for a relation, a binding that preserves the truth of a relation, potential for higher-order relations, omnidirectional access, potential for transfer between isomorphs, and ability to predict unseen items in isomorphic problems. However relational schemas are not necessarily coded in abstract form. Predictions from relational schema theory were contrasted with predictions from configural learning and other nonstructural theories in five experiments in which participants were taught a structure comprised of a set of initial-state,operator → end-state instances. The initial-state,operator pairs were presented and participants had to predict the correct end-state. Induction of a relational schema was achieved efficiently by adult participants as indicated by ability to predict items of a new isomorphic problem. The relational schemas induced showed the omnidirectional access property, there was efficient transfer to isomorphs, and structural coherence had a powerful effect on learning. The “learning to learn” effect traditionally associated with the learning set literature was observed, and the long-standing enigma of learning set acquisition is explained by a model composed of relational schema induction and structure mapping. Performance was better after reversal of operators than after shift to an alternate structure, even though the latter entailed more overlap with previously learned tasks in terms of the number of configural associations that were preserved. An explanation for the reversal shift phenomenon in terms of induction and mapping of a relational schema is proposed. The five experiments provided evidence supporting predictions from relational schema theory, and no evidence was found for configural or nonstructural learning theories.     

Job Insecurity in Recent Business School Graduates: Antecedents and Consequences

This research examined the relationship of perceived threats to job security, job satisfaction, and psychological mood among recent business school graduates. Most job insecurity research has considered longer-tenured organizational employees. Two hundred and seventeen respondents completed anonymous questionnaires. LISREL analysis provided considerable support for the research model. Perceived threats to job security had direct effects on job insecurity and job satisfaction and indirect effects on psychological mood through job insecurity and job satisfaction.     

突发公共卫生事件下心境障碍的特点与应对

突发公共卫生事件会给较大范围的人群造成相当的心理压力和情绪问题。突发事件发生时,社会心理因素对突发事件控制效果和进程的影响越来越显著,因疫情、疾病、生活、工作以及社会和人际关系等因素而致的情绪问题非常突出。突发事件时情绪问题的表现有疑病、恐慌、焦虑、抑郁和强迫心理等,对此应采取相应的对策,而不同群体如罹患人群、隔离人群、家属、普通就医者及一般公众的情绪问题有其独特的表现和应对措施。突发事件为情绪问题的研究提供了广阔的前景。     

特征归纳的关联相似性模型

作者提出特征归纳的关联相似性模型,用以描述以归纳特征的关联特征相似性为基础的归纳推理,把归纳推理中相似性和关联知识统一整合起来。该模型认为归纳强度主要取决于归纳特征与关联特征的关联强度和关联特征的相似性程度的乘积,归纳信心主要取决于关联强度,从而分离归纳信心和归纳强度。以大学生为被试的两个实验的主要结果支持关联相似性模型的主要预测。关联相似性模型能够描述解释以关联特征相似性为基础的归纳推理现象,比以往的归纳理论具有更大的解释能力和解释范围