Developmental trajectory of intersubjectivity in the second and third year of life: Study of fixed-population and random-individual effects

Colwyn Trevarthen claimed that babies have an intrinsic motivation to communicate and engage with others that he called intersubjectivity. Around the ninth month of life, this motivation changes and passes from person-to-person dyadic (primary intersubjectivity) to triangulate a person–person–object relationship (secondary intersubjectivity). Despite the scientific consensus on this developmental leap, few empirical studies explore the trajectory of this more complex form of intersubjectivity between the second and third year of life. One hundred and fifteen free play sessions from 27 mother–child dyads (13 girls and 14 boys) between 9 and 37 months were filmed and were categorized based on the Level of Intersubjective Attunement Scale. The data were analysed using a linear mixed-effects model. Results show both a population trajectory of the levels of intersubjective attunement and random individual differences. We discuss these results in relation to the binomial typical developmental route and interindividual variability.     

遗传因素在风险决策加工中的作用

风险决策是指个体对不同选项及其概率进行权衡之后做出决定的过程。它是一个复杂的加工过程, 需要平衡奖赏选项的诱惑和损失选项的忧虑。风险决策能力是人脑最重要的高级功能之一。在现实生活中, 风险决策能力具有非常大的个体差异, 而遗传和环境各自都在其中起着关键的作用。在这篇文章中, 我们首先综述近年来风险决策研究领域中探讨遗传影响风险决策加工的研究, 包括双生子研究与分子遗传学研究。在介绍分子遗传学研究时, 按照基因所属神经递质系统, 分别介绍了多巴胺递质系统相关基因(如COMT、DAT等)、五羟色胺递质系统相关基因(如SLC6A4、TPH1等)和其他基因(如BDNF)对风险决策能力个体差异的影响。随后, 我们探讨了环境对风险决策个体差异的影响, 以及基因-环境交互作用对风险决策个体差异的影响。接下来, 我们介绍了将脑的结构与功能作为内表型来考察基因和环境对风险决策个体差异的影响的最新进展。在文章的最后, 我们指出今后对风险决策个体差异的研究应该同时考虑遗传和环境, 并考察脑的结构和功能在其中的中介作用。     

网络社交存在较低的社交焦虑水平吗

网络时代引发了现代人社交方式的改变, 特别是年轻人更加偏爱网络社交方式。已有研究发现较之面对面的现实社交, 非面对面的网络社交有较小的社交压力, 存在较低的社交焦虑水平。研究者分别从自我表露、评价恐惧、成就动机和行为抑制系统四个方面对这个现象进行了解释。但总体来看, 这些解释还缺乏更加统合的理论架构和客观的实验研究结果的支持。     

工作重塑：获得意义性工作与个人成长的新途径

工作重塑是组织行为学中新近出现的一个热点话题,是指员工通过自己对工作进行重新建构来形塑自己的工作认同以及工作角色,其核心目的就是员工对他们的工作进行再设计以获得较高的工作意义感、工作投入以及工作满意度等,进而快乐地工作。在系统梳理有关工作重塑的理论与实证研究文献的基础上,从工作重塑概念的解读、工作重塑的方式与方法、工作重塑的预测因素、工作重塑对个体与组织的影响以及工作重塑的培养策略等方面进行了综述,以便人们更深入地体会其丰富的理论内涵和实践价值;最后,该文指出未来工作重塑的研究应继续注重理论建构的丰富与完善、关注工作重塑的个体与群体差异性以及深化工作重塑与组织之间的关系研究。     

民族本质论对跨民族交往的影响——以中国内地的藏族大学生为例

本研究以中国内地的藏族大学生为例,通过两个研究探讨了民族本质论对跨民族交往的影响。研究一通过相关研究发现,民族本质论与接触数量、接触质量呈显著负相关,与民族间的社会距离呈显著正相关;研究二启动了民族本质论和民族建构论,结果发现,相比本质论启动条件,民族建构论启动条件下藏族大学生的跨汉民族交往意愿较高。本研究说明,民族本质论是影响跨民族交往的重要因素,加强民族的社会建构论是促进跨民族交往的重要举措。     

Identifying long-term patterns of work-related rumination: associations with job demands and well-being outcomes

The aim of this 2-year longitudinal study was to identify long-term patterns of work-related rumination in terms of affective rumination, problem-solving pondering, and lack of psychological detachment from work during off-job time. We also examined how the patterns differed in job demands and well-being outcomes. The data were collected via questionnaires in three waves among employees (N = 664). Through latent profile analysis (LPA), five stable long-term patterns of rumination were identified: (1) no rumination (n = 81), (2) moderate detachment from work (n = 228), (3) moderate rumination combined with low detachment (n = 216), (4) affective rumination (n = 54), and (5) problem-solving pondering (n = 85), both combined with low detachment. The patterns differed in the job demands and well-being outcomes examined. Job demands (time pressure, cognitive and emotional demands) were at the highest level across time in patterns 3–5 and lowest in pattern 1. Patterns 3 and 4 were associated with poorer well-being outcomes (higher job exhaustion and more sleeping problems, and lower work engagement) across time. By contrast, pattern 5 showed positive outcomes, especially high level of work engagement. Thus, the different patterns of work-related ruminative thoughts suggest diverse relationships with job demands and well-being.     

How challenging was your work today? The role of autonomous work motivation

The main aim of this study was to investigate whether autonomous motivation for work can explain the distinctive associations between hindrance and challenge demands and work-related well-being (i.e., positive affect and work engagement) on a within-person level. Autonomous work motivation represents the degree to which motivation for putting effort in work is intrinsic (i.e., with a sense of volition and personal choice) or has been internalized (i.e., without feelings of internal or external pressure). In order to test our hypotheses, we employed a diary methodology and followed 153 secondary school teachers throughout five consecutive working days. The results of multilevel modelling provided support for the hypothesized research model. On days when teachers experienced more challenges, they also experienced more positive affect and more engagement in their work on the same day, and this relationship could be explained by (higher) autonomous work motivation on that day. In contrast, on days when teachers experienced more hindrance demands, they experienced less positive affect and less work engagement, and this process was explained by (reduced) autonomous work motivation that day. Our findings add to the literature by showing that daily autonomous motivation as a motivational process can explain why daily challenge and hindrance demands are differentially related to positive well-being at work.     

A two-wave cross-lagged study of business travel,work–family conflict,emotional exhaustion,and psychological health complaints

By using a two-wave panel design, the present study aimed at studying longitudinally the relation between business travel and work–family conflict (WFC) as well as the reciprocal relationships among WFC, emotional exhaustion, and psychological health complaints. The study was conducted in a large Norwegian oil and gas company (n = 1702), and the company’s business travel database was utilized to examine business travel. The results showed a positive cross-lagged relation between business travel and WFC. In addition, WFC predicted emotional exhaustion over time, whereas emotional exhaustion predicted psychological health complaints over time. Reversed influences also existed, supporting our hypotheses on reciprocal relations. The longitudinal design of the current study makes an important contribution to the research on business travel and employees’ psychological health.     

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