工作场所无礼行为的溢出和交叉效应:超越职场范围的负性作用机制

以往研究通常考查工作场所无礼行为对接收者个人和工作场所内相关结果的影响。而近来研究指出,无礼行为会超出工作场所的界限产生溢出效应,且工作场所无礼行为会对接收者之外的他人产生消极作用,即工作场所无礼行为的交叉效应。在综述国内外相关文献的基础上,总结出了溢出和交叉效应的产生机制,包括消极情绪和情感在无礼行为溢出效应中的中介机制,以及压力传递在无礼行为引发的消极情绪和行为反应与工作-家庭冲突中的中介角色;深入探讨了共情在无礼行为交叉效应中的调节机制和社会阻抑在无礼行为交叉效应中的中介机制;并建议未来相关研究选取新的结果变量视角、探究新的中介机制和边界条件以及进一步整合无礼行为的溢出和交叉的连锁效应机制     

社会支持、主动反刍与创伤后应激障碍的关系:来自地震后青少年的追踪研究

以追踪研究的方式,在汶川地震后3.5年、4.5年和5.5年三个时间点,采用社会支持问卷、反刍问卷和创伤后应激障碍量表对汶川地震后245名中学生进行调查。通过建立交叉滞后模型,考察社会支持、主动反刍与创伤后应激障碍(PTSD)的相互作用关系。结果发现,震后3.5年至5.5年间,社会支持与主动反刍之间的跨时间点预测作用不显著,PTSD对社会支持的跨时间点预测作用不显著,但对主动反刍具有显著的跨时间点正向预测作用。震后3.5年至4.5年间,社会支持对PTSD的跨时间点负向预测作用、主动反刍对PTSD的跨时间点正向预测作用均显著,但是这些作用在震后4.5年至5.5年间变得不再显著。     

Preventing the detrimental effect of posttraumatic stress in young children: The role of theory of mind in the aftermath of a natural disaster

We conducted a field study to test whether parents' negative reactions to a natural disaster affected children's reactions, together with the factors buffering this negative influence. Specifically, we examined whether parents' posttraumatic stress symptoms following an earthquake were associated with children's posttraumatic symptoms and their use of negative coping strategies. Theory of mind (ToM) was tested as the factor allowing children to reduce the detrimental effects of posttraumatic stress symptoms on negative coping. Hypotheses were tested in a sample of elementary school children and their parents in the aftermath of the earthquakes that struck Northern Italy in 2012. Results revealed that mothers' (but not fathers') posttraumatic stress symptoms were positively associated with children's posttraumatic stress symptoms, which acted as mediator on the use of negative coping strategies by children, but only among children with low ToM abilities. We discuss the theoretical and practical implications of findings.     

The effects of co‐occurring ADHD symptoms on electrophysiological correlates of cognitive control in young people with Tourette syndrome

Efficient cognitive control is implicated in tic control in young people with Tourette syndrome (TS). Attention‐deficit/hyperactivity disorder (ADHD) frequently co‐occurs with TS and is associated with impaired cognitive control. Young people with TS and ADHD (TS+ADHD) show poorer cognitive control performance than those with TS, but how co‐occurring ADHD affects underlying neural activity is unknown. We investigated this issue by examining behavioural and event‐related potential (ERP) correlates of cognitive control in young people with these conditions. Participants aged 9–17 with TS (n = 17), TS+ADHD (n = 17), ADHD (n = 11), and unaffected controls (n = 20) performed a visual Go/Nogo task during electroencephalography (EEG) recording. Behavioural performance measures (D‐prime, RT, reaction time variability, post‐error slowing) and ERP measures (N2, P3, error‐related negativity (ERN), error positivity (Pe)) were analysed in a 2 (TS‐yes, TS‐no) × 2 (ADHD‐yes, ADHD‐no) factorial analysis to investigate the effects of TS, ADHD, and their interaction. The results of these analyses showed that ADHD was associated with poorer performance and reduced amplitude of all ERPs, reflecting widespread cognitive control impairments. Tourette syndrome was associated with slowed RTs, which might reflect a compensatory slowing of motor output to facilitate tic control. There was no interaction between the TS and ADHD factors for any behavioural or ERP measure, indicating the impairing effects of ADHD on behaviour and electrophysiological markers of cognitive control were present in TS+ADHD and that RT slowing associated with TS was unaffected by co‐occurring ADHD symptoms.     

The objects of visuospatial short-term memory: Perceptual organization and change detection

We used a colour change-detection paradigm where participants were required to remember colours of six equally spaced circles. Items were superimposed on a background so as to perceptually group them within (a) an intact ring-shaped object, (b) a physically segmented but perceptually completed ring-shaped object, or (c) a corresponding background segmented into three arc-shaped objects. A nonpredictive cue at the location of one of the circles was followed by the memory items, which in turn were followed by a test display containing a probe indicating the circle to be judged same/different. Reaction times for correct responses revealed a same-object advantage; correct responses were faster to probes on the same object as the cue than to equidistant probes on a segmented object. This same-object advantage was identical for physically and perceptually completed objects, but was only evident in reaction times, and not in accuracy measures. Not only, therefore, is it important to consider object-level perceptual organization of stimulus elements when assessing the influence of a range of factors (e.g., number and complexity of elements) in visuospatial short-term memory, but a more detailed picture of the structure of information in memory may be revealed by measuring speed as well as accuracy.     

Factors Influencing Level of Stress During the Nursing Home Decision Process

This investigation examined whether characteristics of elders and their caregivers and facets of the nursing home decision-making context were associated with recalled levels of stress during nursing home decision-making. Employing a conceptual framework based upon the literature on caregiver stress and nursing home decision-making, we considered a number of factors that might influence sponsors' stress as decisions were being made about nursing home placements. We examined data from telephone interviews with a sample of 142 sponsors (responsible parties) of first-time, recently admitted nursing home residents. Higher levels of reported stress were directly associated with more factors triggering the decision to admit, higher levels of competing demands, and limited time. Employment was indirectly related to higher stress through its impact on demands. Hospitalization and being the spouse or an adult child of the resident were indirectly related to stress because they were associated with limited available time. The results offer some insights into the types of individuals who may be vulnerable to higher levels of stress and the kinds of interventions that might avert high stress in the nursing home decision process.     

心理应激对大白鼠自由基损伤的影响

本研究将动物分为实验模型５天、１０天、２０天组及对照组,并检测各组动物上述组中的ＬＰＯ、ＳＯＤ、ＣＡＤ水平进行了分析;研究因噪音诱发的心理应激反应时大白鼠脑、肝、肺、心、肾组织自由基损伤情况及防御酶的活性变化;结果发现：在心理应激反应条件下,动物各组织的因自由基反应而使ＬＰＯ含量升高、防御酶ＳＯＤ、ＣＡＤ活性下降,表明：１．心理应激可以诱发动物体内产生大量的自由基,并对脑、肝、肺、心、肾组织产生影