The relationship between impulsivity and suicide among rural youths aged 15–35 years: a case–control psychological autopsy study

In China, the gender ratio of suicide rates did not match the Western patterns, which was higher for females than males. However, the rural men were at relatively high risk of suicide in Liaoning province. Impulsivity was an important factor of suicide behaviors, but there was a lack of studies in China. This research aimed to study the relationship between impulsive personality traits and suicidal behavior among Chinese rural youths. Suicides were consecutively sampled from six randomly selected counties in Liaoning Province in China. Between 2005 and 2007, a total of 162 suicide victims were enrolled in the study along with 162 community controls matched for age, gender, and location. The psychological autopsy method was used to collect data from informants knowledgeable about the selected suicide victims and controls. The results showed the suicide victims in the study were more likely to demonstrate dysfunctional impulsivity and less likely to demonstrate functional impulsivity compared with the controls. Mental disorders, acute negative life events, and dysfunctional impulsivity contributed to the risk of suicide; educational and functional impulsivity were protective factors. Suicide prevention efforts in rural China may address impulsivity.     

The breadth and mnemonic consequences of the youth bias

We have recently demonstrated the existence of the youth bias, referring to a tendency to favour adolescence and early adulthood over other lifetime periods when making inferences about the timing of important public events across the lifespan of a typical individual within one's culture. The youth bias integrates two discrete lines of research, that is, the literature on the privileged status of adolescence and early adulthood in human memory and cognition, and the literature on cognitive biases. Here we first examined whether the youth bias holds for specific categories of public events (i.e., deaths of public figures, United States presidential elections, and sporting events). We then investigated the possible role of the youth bias in structuring recall for public events, by probing, within subjects, for the relation between: (1) these expectations of the timing, in a typical person's life, of the most important exemplar from each public event category, and (2) the age at which the cited event occurred on a recall question asking participants to cite the most important exemplar, in their own lifetime, from each category. We found a youth bias for each category. Additionally, responses to the youth bias question were correlated with the age at which the recalled event occurred, but only where particularly salient historical events did not play a central role in driving recall (i.e., for sporting events). We conclude that the youth bias holds across different types of public events and provides a default structure for organizing recall of public events.     

共患难,更同盟:共同经历相同负性情绪事件促进合作行为

4项实验探讨了共同经历相同负性情绪事件,相比单独经历负性情绪事件,是否以及如何促进了个体间的合作。实验1~3分别采用抽奖任务和瑞文推理测验任务操纵负性情绪事件,采用公共物品博弈任务测量合作行为,结果表明,共同经历相同负性情绪事件,相比单独经历负性情绪事件,促进了个体间的合作行为。实验2通过测量归属需要、社会联结和内群体认同,实验3通过操纵归属需要,来考察共同经历相同负性情绪事件促进合作行为的潜在机制,结果表明,共同经历者之间的合作行为受归属需要的驱动,而社会联结和内群体认同不足以对该现象进行解释。实验4通过操纵个体共同经历“相同”和“不同”的负性情绪事件,进一步厘清了,促进个体间的合作是由于“共同经历相同的负性情绪事件”而非“共同经历负性情绪”造成的。研究结果有利于解释小群体的形成,对群体和社会管理亦具有借鉴意义。     

网络突发事件中的负性偏向：产生与表现

在网络突发事件的产生和传播中, 人们往往更关注负面信息的加工和传递, 存在负性偏向。本研究依据事件酝酿、爆发、蔓延阶段的特征, 构建心理机制模型, 通过3项研究分别检验了信息内容、信息加工和信息传递中负性偏向的产生和发展。结果表明, 负性偏向不仅产生于网络突发事件的源头语篇中, 还产生于个体信息加工和人际信息传递过程, 表现为个体对负性词汇更好的记忆效果及更高的辨别力, 以及网民间对负性信息的选择性传递和对模糊信息的负性解读。研究有利于认识网络突发事件信息传播规律, 科学应对舆情危机, 创新网络治理。     

Personal and Political: Post-Traumatic Stress Through the Lens of Social Identity,Power, and Politics

Post-traumatic stress disorder (PTSD) has always been controversial and highly politicized. Here, using a social identity approach, we review evidence that trauma and its aftermath are fundamentally linked to social position, sociopolitical capital, and power. We begin this contribution by demonstrating how a person's group memberships (and the social identities they derive from these memberships) are inherently linked to the experience of adversity. We then go on to consider how it is through group memberships that individuals are defined by their trauma risk and trauma histories—that is, a person's group memberships and their trauma are often inherently linked. Considering the importance of group memberships for understanding trauma, we argue that it is important to see these, and group processes more generally, as more than just “demographic” risk factors. Instead, we argue that when groups are defined by their trauma history or risk, their members will often derive some sense of self from this trauma. For this reason, attributes of group memberships are important in developing an understanding of adjustment and adaptation to trauma. In particular, groups' status, their recourse to justice, and the level of trust and solidarity within the group are all central to the impact of traumatic events on individual-level psychological resilience. We review evidence that supports this analysis by focusing on the exacerbating effects of stigma and social mistrust on post-traumatic stress, and the value of solidarity and strong identities for resilience. We conclude that because of these group-related processes, trauma interweaves the personal with the political and that post-traumatic stress is fundamentally about power, positionality, and politics.     

苔花盛开如牡丹？农村留守儿童负性生活事件与心理健康的关系

以1368名农村留守儿童为被试,通过问卷调查探讨农村留守儿童的负性生活事件与心理健康的关系,并检验心理韧性、同伴依恋的链式中介作用。结果发现：（1）农村留守儿童负性生活事件与其心理健康呈负相关关系,心理健康在性别、民族、年级和父母外出状况上差异显著;（2）农村留守儿童负性生活事件不仅能直接预测其心理健康,而且还通过同伴依恋、心理韧性发挥链式中介作用。     

自我反思对智慧的影响：有调节的中介模型

采用问卷法对1019名大学生进行调查,考察意义寻求在自我反思与智慧之间的中介作用以及生活事件对这一中介过程的调节作用。结果显示：(1)自我反思显著正向预测智慧;(2)意义寻求在自我反思与智慧之间起部分中介作用;(3)意义寻求的中介作用受到生活事件的调节,生活事件调节了自我反思通过意义寻求影响智慧这一中介过程的后半路径。因此,自我反思对智慧的影响是有调节的中介效应。     

Emotion Regulation of Events Central to Identity and Their Relationship With Concurrent and Prospective Depressive Symptoms

Dispositional emotion regulation is related to the severity and maintenance of depressive symptoms. However, whether emotion regulation specific to an event highly central for an individual’s identity is predictive of depressive symptoms has not been examined. Nonclinical participants (N = 220) reported the extent to which they employed a selection of emotion regulation strategies when recalling low- and high-centrality events. Dispositional emotion regulation and depressive symptoms were also assessed. A 7-week follow-up was conducted. High-centrality events were associated with more emotion regulation efforts. Greater brooding and expressive suppression in relation to high-centrality memories predicted concurrent depressive symptoms after controlling for event valence and dispostional emotion regulation. Effects were absent for low-centrality memories. Emotion regulation in response to high-centrality memories did not predict depressive symptoms at follow-up beyond baseline depressive symptoms. Overall, the findings showed that maladaptive emotion regulation in response to memories of high-centrality events is important for explaining depressive symptomatology.     

负性生活事件对大学生抑郁的影响：网络成瘾的中介与5-HTR1A基因rs749098多态性的调节作用

基于抑郁的基因-环境研究范式,以301名大学生为研究对象,探究负性生活事件对大学生抑郁的影响及作用机制。结果表明：(1)负性生活事件、网络成瘾与大学生抑郁两两显著相关;(2)网络成瘾在负性生活事件对大学生抑郁的影响中起部分中介作用;(3) 5-HTR1A基因rs749098多态性在该中介模型的直接路径和中介后半段起调节效应,具体表现为,相比携带C/G和G/G基因型个体,C/C基因型个体负性生活事件对抑郁的负向预测更强,且携带C/C基因型的个体,即使是低水平的网络成瘾的都表现出更高的抑郁情况,而在高水平的网络成瘾的情况下三种基因型都表现出高水平的抑郁。     

Does personality moderate reaction and adaptation to major life events? Evidence from the British Household Panel Survey

A nationally representative panel study of British households was used to examine the extent to which Big Five personality traits interact with the experience of major life events (marriage, childbirth, unemployment, and widowhood) to predict increases and decreases in life satisfaction following the event. Results show that major life events are associated with changes in life satisfaction, and some of these changes are very long lasting. Personality traits did not have consistent moderating effects on the association between stressful life events and life satisfaction over time.