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。     

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.

     

Working memory task decreases the survival of newly born neurons in hippocampus

Throughout life new neurons are generated in dentate gyrus of hippocampus. Previous studies have found that spatial tasks can rescue newly born neurons from death. However, it is still unknown whether new neurons are similarly affected by all types of hippocampal-dependent tasks. Here we investigated the possible effects of working memory task (WMT) on immature neurons. Mice were trained in reference memory task and WMT respectively. The reference memory task used the classical hidden platform (HP) water maze task, while WMT used a delayed matching-to-place (DMTP) water maze task. Bromodeoxyuridine (BrdU) was administrated during the early or late phase of training, or 1week prior to training, in order to label dividing proliferating cells. After water maze training, the number of BrdU-labeled cells in dentate gyrus of hippocampus was compared. In addition, hippocampal brain-derived neurotrophic factor (BDNF) and Notch 1 receptor were characterized using Western blot. Serum corticosterone levels were also measured using enzyme immunoassay. Results showed that HP task and DMTP task did not change the number of BrdU-labeled cells produced during the early or late phase of training. As expected, the HP task increased the number of BrdU-labeled cells produced 1 week prior to training. However, DMTP task decreased the number of BrdU-labeled cells produced 1 week prior to training. Both tasks lead to a significant increase in serum corticosterone levels and did not change the expression of BDNF and Notch 1 receptor in hippocampus. Taken together, these results demonstrate that WMT has different effects on survival of immature neurons, and therefore suggests immature neurons may have more than one role depending on the demands of the tasks.     

图式心理疗法述评

图式疗法也称图式聚焦疗法,是在整合了认知疗法、行为疗法、客体关系、格式塔理论的有利元素基础上,而形成的一个统一性、系统性、创新性的心理疗法.图式疗法包括两个主要的阶段,一是评定阶段,这一阶段主要用来识别、评定来访者的图式;二是改变阶段,在这一阶段来访者由消极、适应不良的思维和行为习惯转变为积极、健康的认知和行动.图式疗法对治疗人格障碍、慢性抑郁症等长期的心理问题有很好的效果.     

少数民族已婚妇女性生活现状调查研究

已婚少数民族妇女的性生活和谐程度和夫妻交流性感受程度较高.民族、年龄、职业、家庭年收入、小孩数目、因避孕不适的治疗、身体健康状况、参加生殖健康培训以及与配偶讨论性是少数民族已婚妇女性生活是否和谐的影响因素.少数民族地区的生殖健康干预措施要结合各民族文化习俗,才能保证其有效实施.     

胰岛再生治疗的前景

胰岛β细胞数量减少和功能障碍是糖尿病的根本原因,现有的治疗手段主要以维持正常血糖水平为主要目的,尚无有效恢复受损胰岛功能的治愈性治疗手段。胰岛再生治疗将是一种可以恢复受损胰岛功能、改变糖尿病自然病程的崭新治疗手段。目前现有的噻唑烷二酮、肠促胰岛素及类似物、二肽基肽酶-4抑制剂等治疗,虽然不是一类新的胰岛再生药物,但其具有一定的促进胰岛再生、改善胰岛功能的作用。体外诱导β细胞再生也将为胰岛移植提供新的来源,为治愈糖尿病带来曙光。     

声旁家族大小和高频同声旁字对汉字命名的影响

该研究探讨了声旁家族大小和高频同声旁字对汉字命名的影响。结果表明：1）声旁家族大起抑制作用,在不一致字上更明显;2）相对于高频同音邻近字,高频异音邻近字对低频字起抑制作用;3）汉字命名中字形相近字的作用点有两个,分别在字形表征水平和语音表征水平。     

人格测量：从累积式模型到展开式模型

当前大多数人格测量都采用的是累积式反应模型方法,该模型假设被试在测验上的得分随其能力或特质提高而增加,但是随着人格测量技术的不断发展,这一模型的实施效果遭到了质疑,研究者们开始关注展开式模型,该模型认为被试的反应取决于被试能力和项目阈值的匹配程度,当被试能力与项目阈值完全匹配时,被试做出肯定回答的概率达到最高点,称之为“理想点”,展开式模型的目的就是找到被试的理想点,从而寻找其真正的态度强度或人格特质水平。GGUM作为一种比较成熟的展开式模型,已经开始应用于人格测量的各个领域,但仍需要进行大规模的试测,在评估和预测效度方面积累经验,建立业界认可的心理测量学标准,不断探讨和开发相应的心理测量理论和简便易行的统计程序。