同伴团体对青少年问题行为的影响：一项基于社会网络分析的研究

以675名初中和高中学生为被试,采用社会网络分析方法,获得506名青少年在其班级中的网络中心度,并确定他们所属的同伴团体,在此基础上考察同伴团体的行为规范对其问题行为的影响。结果发现：（1）在控制了班级层次的问题行为水平和其他相关变量后,同伴团体的问题行为水平能够正向预测青少年自身的问题行为;（2）青少年在同伴团体内部的地位能负向预测青少年的问题行为,青少年在班级社交网络中的度数中心度能正向预测其问题行为,而中介中心度能负向预测其问题行为;（3）交互作用分析表明：同伴团体的问题行为水平主要对低中介中心度的青少年产生显著影响;仅在问题行为水平较高的同伴团体中,青少年的度数中心度正向预测其问题行为。     

Attentional bias toward emotional stimuli in accidentally injured Chinese patients with different posttraumatic growth levels

Extensive evidence has been obtained that supports an association between an attentional bias (AB) toward negative stimuli and vulnerability to stress-related psychopathology, little is known regarding the characteristics of individual AB in different posttraumatic growth (PTG) levels. The current study used a modified dot-probe task to investigate if individual differences in AB towards either positive or negative emotional stimuli, are related to self-reported PTG. A sample of 202 patients completed the experiment. Patients with low levels of PTG did not exhibit AB toward negative or positive stimuli, patients with medium levels of PTG had difficulty disengaging attention from negative stimuli, patients with high levels of PTG had difficulty disengaging attention from positive stimuli. And the AB towards positive stimuli was only predictive for PTG. An implication of this finding is that there are different characteristics of implicit cognitive processing in patients with different levels of PTG, suggesting the necessity of psychological intervention on the accidentally injured patients.     

The mediating role of relatedness need satisfaction in the relationship between charitable behavior and well‐being: Empirical evidence from China

Based on self‐determination theory, the current research aimed to explore the potential mediating effect of relatedness need satisfaction on the relationship between charitable behavior and well‐being in the Chinese context. Employing a cross‐sectional design, participants reported data on the aforementioned variables in Study 1. The results indicated that relatedness need satisfaction mediated the positive relationship between charitable behavior and hedonic well‐being and that between charitable behavior and eudaimonic well‐being. Subsequently, a field experiment was conducted in Study 2. Participants rated their levels of relatedness need satisfaction and well‐being after charitable donation behaviors were primed. We again observed consistent results. Specifically, charitable behavior was positively associated with both hedonic and eudaimonic well‐being, and these relationships were mediated by relatedness need satisfaction. The above findings help to clarify the association between charitable behavior and people's subjective feelings (i.e., well‐being), and they deepen our understanding of the underlying mechanism from the perspective of psychological needs satisfaction.     

Meaningful Work and Affective Commitment: A Moderated Mediation Model of Positive Work Reflection and Work Centrality

Empirical research on both meaningful work and organizational commitment has been criticized because research in both fields is largely unsystematic. By integrating the cognitive appraisal theory and identity theory into the meaningful work and affective commitment literatures, we examined the mediating role of positive work reflection (study 1 and study 2) and the moderating role of work centrality (study 2) in the relation between meaningful work and affective commitment. We conducted two independent studies with two-wave data to examine our hypotheses through mediation and moderated mediation bootstrapping procedures. Both study 1 and study 2 found that positive work reflection mediated the relationship between meaningful work and affective commitment. In addition, study 2 revealed that the positive relationship between meaningful work and affective commitment was stronger for those who place less importance on work (i.e., low work centrality). The meaningful nature of one’s work may motivate those who view work as peripheral to recall positive moments of their work, which, in turn, impacts their affective commitment to the organization. Thus, in order to increase affective commitment, promoting meaningful work might be particularly important for those with low work centrality. This is one of the first studies to examine positive work reflection as a cognitive pathway linking meaningful work to affective commitment and identify a boundary condition where meaningful work may not be associated with affective commitment for those who are high in work centrality.     

Cortisol Reactivity as a Mediator of Peer Victimization on Child Internalizing and Externalizing Problems: The Role of Gender Differences

Research on Child and Adolescent Psychopathology - Children exposed to peer victimization are at increased risk for psychopathology. However, the physiological mechanisms linking peer victimization...     

面孔—人格知觉的影响因素

人们会迅速地对目标人物的面孔线索进行人格特质分析,进而形成对目标的人格第一印象。在这个面孔—人格知觉的过程中,知觉结果会受到知觉对象、知觉者以及两者交互作用的影响。本文基于这三个方面对影响面孔—人格知觉的因素进行了综述和展望,以期更系统、科学地研究与看待面孔—人格知觉,并为人际印象设计与管理等提供理论参考。     

A New Second-Generation Mindfulness-Based Intervention Focusing on Well-Being: A Randomized Control Trial of Mindfulness-Based Positive Psychology

Second-generation mindfulness-based interventions (SG-MBIs) align well with positive psychology philosophy and practices, but trials of SG-MBIs have largely focused on ill-being. This study developed a mindfulness-based positive psychology (MBPP) intervention integrating positive psychology with an SG-MBI to enhance well-being. A randomized control trial was performed to compare MBPP with a waitlist condition among 138 Chinese participants. The results showed that MBPP significantly reduced negative emotions for subjective well-being and significantly improved environmental mastery for psychological well-being. Improvements in self-compassion and negative attitudes but not avoidance, mediated changes in well-being. Changes in positive emotions, positive relations, and awareness were associated with the amount of meditation practice. These findings showed that MBPP is promising for improving well-being and that the positive psychology components play important roles. Broadly, the study illustrated that positive psychology and SG-MBIs can be effectively integrated, and it supported the further application of SG-MBIs from the positive psychology perspective.

     

比较基因组学研究与应用中的辩证思维

比较基因组学是人类基因组计划的重要组成部分.它利用人类基因组与模式生物基因组之间编码顺序上和组织结构上的同源性,发现和克隆人类基因,揭示基因功能,从而阐明物种的进化关系及基因组的内在结构.比较基因组学的创立、内容及应用都充分体现着辩证思维的哲学观点.     

启动情绪和呈现方式对错误记忆的影响

采用DRM范式(Deese-Roediger-Mc Dermott paradigm),考察了启动情绪状态下词表项目的呈现方式对错误记忆的影响。结果发现:(1)启动情绪主效应不显著。(2)词表项目的呈现方式主效应显著。(3)启动情绪与呈现方式间存在交互作用。在愉快启动情绪状态下分组呈现的错误再认率明显高于随机呈现条件;当词表项目分组呈现时,三种情绪状态下的错误再认率有显著差异,其中愉快启动情绪下的错误再认率最高,其次是悲伤情绪,最低的为对照组—非启动情绪状态。说明启动的愉快情绪增强了对关键诱饵的连续激活累积效应,从而导致对关键诱饵较高的错误再认率。