流动性、教育安置方式和心理弹性对流动儿童孤独感的影响:一项追踪研究

采用潜变量增长模型对426名流动儿童进行四次追踪测查,旨在考察流动儿童孤独感的变化趋势,探索不同流动性和教育安置方式的流动儿童孤独感变化的差异性以及心理弹性对孤独感变化的促进性作用。结果发现：（1）流动儿童的孤独感呈线性下降趋势;（2）打工子弟学校流动儿童的孤独感起始水平显著高于公立学校流动儿童;流动性高的儿童的孤独感起始水平高于流动性低的儿童,但流动性和教育安置方式对孤独感的发展趋势没有显著预测作用;（3）对于流动儿童来说,较高的心理弹性水平不仅能显著预测更低的孤独感起始水平,同时也能显著预测更快的孤独感的下降速率。本研究启示,增加进入公立学校学习的机会、降低流动频率和提升心理弹性对降低流动儿童的孤独感水平具有重要的意义。     

心理分离研究进展*

心理分离指的是个体在非工作时间里从工作中分离出来,个体不仅身体上远离工作场所,精神上也摆脱掉工作的事情,对员工工作压力的恢复过程非常关键。首先,文本概述了心理分离的概念及其进展;其次,论述了心理分离研究现状;最后,阐述了心理分离的已有研究存在的问题和未来研究的方向。     

任务价值研究的回顾与展望

文章阐述了以往研究者对任务价值及内部结构的界定,回顾了任务价值研究的历史,介绍了任务价值研究的现状,讨论了目前任务价值研究中存在的问题和未来的发展趋势。     

青年学生价值目标结构的研究

本研究在文献分析的基础上,结合国外已有相关量表,通过访谈、开放式问卷等方法,构建了我国青年学生价值目标理论维度,并据此编制了青年学生价值目标量表,对量表进行探索性因素分析和验证性因素分析后表明,青年学生价值目标包括6个维度：和平和安宁的价值目标、友谊和真爱价值目标、刺激和享乐价值目标、名望和权力价值目标、自我实现与发展价值目标、奉献价值目标。     

中国消费者价格容忍度的特点

运用多维线性模型,对我国消费者对不同产品价格涨落的容忍态度进行了研究。研究对象为26384名购买过各类产品的消费者。结果表明：（1）消费者对不同产品的价格容忍度不同,对日用消费品的价格容忍度较高,对耐用消费品的价格容忍度相对较低;（2）消费者的年龄和受教育程度对价格容忍度有负向的影响,消费者的年龄和受教育程度越高,对产品的价格容忍度越低;（3）男性消费者的价格容忍度高于女性消费者,女性消费者对价格较为敏感。     

中等强度情绪性图片的神经机制——一项fMRI研究

采用修订后的中等唤起度的国际情绪图片为刺激材料,以12名女性大学生为被试,考察情绪性图片引起的脑激活模式。结果发现,与中性条件相比,消极情绪图片激活了枕叶、杏仁核、海马旁回和壳核。积极情绪图片引起枕叶、内侧眶额、额中回等脑区的激活,研究结果再次验证了杏仁核与消极情绪的密切关系,同时推测,内侧眶额可能是中等唤起度的趋近性积极情绪的一个脑功能区。     

Ecstasy use and suicidal behavior among adolescents: findings from a national survey

The relationship between ecstasy use and suicidal behavior among adolescents in the United States was examined. Data from the adolescent subsample (ages 12-17, N = 19,301) of the 2000 National Household Survey on Drug Abuse were used in the analyses. Information on adolescent substance use, suicidal behaviors, and related sociodemographic, family, and individual factors was obtained in the survey. The rate of past year suicide attempt among adolescents with lifetime ecstasy use was almost double that of adolescents who had used other drugs only, and nine times that of adolescents with no history of illicit drug use. In multinomial logistic regression analyses controlling for related factors, the effect of ecstasy use remained significant. Adolescent ecstasy users may require enhanced suicide prevention and intervention efforts.     

肝癌基础研究如何向临床转化

肝癌基础研究在过去数十年取得了长足的进步,而肝癌临床研究则相对滞后,二者间存在巨大的反差。如何将基因组时代发现的大量有重要意义的基础研究成果及时有效地转化为临床可用的技术方法,以进一步提高肝癌治疗效果是亟待解决的难题。转化医学研究为其搭建了一条重要桥梁。     

The association between infants' self-regulatory behavior and MAOA gene polymorphism

Self-regulatory behavior in early childhood is an important characteristic that has considerable implications for the development of adaptive and maladaptive functioning. The present study investigated the relations between a functional polymorphism in the upstream region of monoamine oxidase A gene (MAOA) and self-regulatory behavior in a sample of Chinese infants at 6 months of age. Self-regulation was assessed by observing infants' behavior of orienting visual attention away from a threatening event in the laboratory situation. The results indicated that regulatory behavior was associated with the functional MAOA gene polymorphism in girls, but not boys. Girls with 4/4 genotypes displayed significantly higher regulation than girls with 3/3 and 3/4 genotypes. The present study provided evidence for gender differences on the role of MAOA gene polymorphism in socioemotional functioning in the early years.