流动儿童同伴侵害的特点及与内化问题的循环作用关系:一项追踪研究

本研究采用纵向设计,以北京市426名四、五年级流动儿童为被试,进行连续4次的追踪测查,考察流动儿童同伴侵害的特点及其与内化问题的动态相互作用关系。结果发现:(1)打工子弟学校流动儿童的同伴侵害与内化问题水平比公立学校流动儿童高;流动儿童的流动性越大,同伴侵害和内化问题越多。(2)控制了性别、年级、家庭社会经济地位(SES)和流动性后,从T1到T2,同伴侵害与孤独感为相互作用关系,且同伴侵害可以显著预测抑郁,但对社交焦虑的预测作用不显著,而从T2到T4,同伴侵害和3种内化问题的相互作用模式完全一致,即T2时的社交焦虑、抑郁和孤独感显著预测T3的同伴侵害,进而显著预测T4的社交焦虑、抑郁和孤独感。(3)抑郁、孤独感与同伴侵害的循环作用在两类流动儿童中具有较强的稳定性,而在社交焦虑和同伴侵害的模型中,打工子弟学校流动儿童的同伴侵害对社交焦虑的作用比公立学校流动儿童更大。可见,同伴侵害和内化问题呈循环作用关系,未来预防/干预研究可以聚焦于减少流动儿童的同伴侵害或内化问题的角度打破二者的恶性循环,帮助他们建立良好的人际关系,构建良性循环,促进他们的积极发展。     

Parental Psychological Control and Peer Victimization among Chinese Adolescents: The Effect of Peer Pressure as a Mediator

Peer victimization is a serious problem among children and adolescents. Family and peers are two of the most proximal and influential microsystems for children. The present study examined the influence of parental psychological control and peer pressure on peer victimization. According to social learning theory and attachment theory, parent–child interactions may serve as a model of peer interactions. Therefore, we proposed the hypothesis that peer pressure functioned as a mediator in the association between parental psychological control and peer victimization. We tested this hypothesis in a sample of Chinese adolescents and examined whether this mediation model varied by gender. Participants were 2382 seventh grade students (1166 girls and 1216 boys) in Beijing, China. The results showed that both parental psychological control and peer pressure were positively associated with peer victimization in Chinese adolescents. Additionally, peer pressure partially mediated the effect of psychological control on peer victimization. Furthermore, multi-group comparisons showed that gender differences existed in the mediation model. The direct effect of psychological control on peer victimization was a little larger in boys, whereas the indirect effect was larger in girls. The findings suggest that parental psychological control contributes to peer victimization in non-Western culture as well. These findings also improve our understanding of the underlying mechanisms involved in peer victimization by interrelating family and peer factors.     

The prevalence and predictors of metabolically healthy obesity in obese rural population of China: a cross-sectional study

Till now, no evidence illustrates the prevalence and predictors of metabolically healthy obesity (MHO) in rural areas of China. The objective of this study was, firstly, to examine the prevalence of MHO in rural areas of China, and identify contributing determinants of MHO, Secondly, to comprehensively investigate to the different characteristics between MHO and metabolically unhealthy obesity (MUO). We conducted a population-based cross-sectional study of 2037 participants with obesity in rural Liaoning Province during 2012–2013. Obesity was defined as BMI ≥28 kg/m² and metabolically healthy was defined as not having the metabolic syndrome. The prevalence of MHO was 23.1%, and significantly decreased with advancing age in female group. However there was no significant tendency with advancing age in male group. Independent determinant factors for MHO were age <55 years (odds ratio [OR] 1.659; p = .001), non-current smoking (OR 1.397; p = .038), pre-menopause (OR 1.648; p = .030) and non-hyperuricemia (OR 2.317; p < .001), whereas race, gender, diet score, current drinking, marriage, sleep duration, hyperhomocysteinemia, levels of physical activity, annual income and educational status were not significant contributors. In conclusion, we found that age <55 years, non-current smoking, pre-menopause and non-hyperuricemia were identified as independent determinant factors for MHO in this population.     

社交网站使用对青少年孤独感的影响:链式中介效应分析

为探讨社交网站使用、线上积极反馈、友谊质量和青少年孤独感的关系,采用社交网站使用强度问卷、线上积极反馈问卷、友谊质量量表和孤独感量表对538名中学生进行调查,结果发现:(1)社交网站使用与线上积极反馈和友谊质量都呈显著正相关,而与孤独感显著负相关,线上积极反馈与友谊质量显著正相关,而且两者都与孤独感显著负相关;(2)社交网站使用对孤独感没有直接的预测作用,但能通过两条路径的间接作用影响青少年孤独感:通过线上积极反馈的中介作用;通过线上积极反馈和友谊质量的链式中介作用。研究结果揭示了社交网站使用对青少年孤独感的影响及其作用机制,能为网络时代的青少年降低孤独感提供有益启示。     

6-9岁儿童工作记忆的发展研究

以Baddeley工作记忆模型为基础考察儿童语音环路、视觉空间模板、中央执行的发展及其与复杂广度的关系。225名6-9岁被试完成9个任务,分别测量听力广度及工作记忆三个子系统的功能。发现工作记忆各个子成分的功能在6-9岁期间发展速度不同;中央执行与语音环路和视觉空间模板的联系随年龄增长加强;结构方程模型分析发现中央执行和语音环路功能对儿童听力广度都有显著的直接影响,表明言语复杂广度任务既涉及中央执行功能也涉及语音环路的存贮功能。     

个体证券投资者自我效能感对赌徒谬误的影响

赌徒谬误指当某一独立随机事件发生后,人们倾向认为这一结果再次出现的概率降低。如果一连串的随机事件呈现出一定的趋势,人们倾向于认为随机事件将呈现系统性反转。证券市场中的赌徒谬误指在股票上涨（下跌）序列中做出股价将要下跌（上涨）的判断。本研究探讨股票市场特征（趋势长度及方向）及投资者的人格特征（自我效能感）对赌徒谬误的影响。以83名股票投资者为对象,采用多层线性模型进行分析,结果发现：趋势长度主效应显著,短线情境下赌徒谬误频次更高;趋势方向主效应显著,下跌情境下赌徒谬误频次更高;二者交互作用显著,在短线下跌情境下,赌徒谬误频次更高;投资者的自我效能感对股票趋势长度具有调节作用,高自我效能的投资者在短线情境下更容易出现赌徒谬误。     

镜像神经元的发现及其对身心二元论的超越

镜像神经元是意大利帕尔玛大学Rizzolatti等人在恒河猴大脑腹侧运动前皮层F5区发现的一种神经元。这种神经元在猴子操作和观察同一个指向某种目标的动作时(如伸手抓食物)皆被激活,似乎这种神经元映射了其它个体的动作,因此被命名为“镜像神经元”。镜像神经元通过具身的模拟把动作的执行和动作的知觉结合在一起,把观察过程与身体运动过程相融合,克服了二元论在身心之间所设置的障碍,为人们正确认识身心关系开辟了新的视角。     

语言产生过程中非目标语言的激活与抑制

运用长时重复启动范式, 探讨熟练和非熟练中－英双语者语言产生过程中非目标语言的激活与抑制。实验1探讨双语被试在学习阶段使用中文进行图片命名任务时, 非目标语言英文概念层面的激活与抑制情况, 结果发现, 两种熟练水平的被试均没有出现重复启动效应; 实验2探讨双语被试在学习阶段使用英文进行图片命名任务时, 非目标语言中文概念层面的激活与抑制情况, 结果发现, 熟练双语被试没有出现重复启动效应, 而非熟练双语被试出现了重复启动效应; 实验3探讨非熟练双语被试在学习阶段使用英文进行图片命名任务时, 非目标语言中文词汇层面的激活与抑制情况, 结果没有出现重复启动效应。综合三个实验的结果可以表明, 熟练中－英双语者语言产生过程中在概念层面上就对非目标语言(不管是一语还是二语)进行了抑制, 而非熟练中－英双语者使用一语时可以在概念层面上抑制非目标语言(二语), 但使用二语时不能在概念层面上抑制非目标语言(一语), 要在词汇层面上才能抑制非目标语言(一语)。     

乔荼波陀与佛教

本论文主要将印度吠檀多派哲学家乔荼波陀的哲学思想与佛教的思想进行比较研究。持“无我论”观点的佛教认为世间一切事物皆无自性实体可言;万物都为因缘和合聚散而生灭。持“有我论”观点的吠檀多派则认为存在着一个精神绝对体（梵我）,它是事物生灭的本源;现象世界随生随灭,而它恒常不灭。本论文认为,乔茶波陀作为印度正统派哲学家,在他的著作《圣教论》中却处处表现出对佛教思想的偏爱,接受了佛教大量的影响,运用唯识宗和空宗的理论来为自己的吠檀多哲学作论证。