阻断内侧前额叶皮质TrkB受体对大鼠认知和海马BDNF表达的影响

脑源性神经营养因子(brain-derived neurotrophic factor, BDNF)广泛参与了个体学习和记忆等认知功能, 通过与其酪氨酸激酶受体(tyrosine kinase, TrkB)特异性结合, 实现其多种神经生化功能。本研究观察了TrkB受体阻断剂ANA-12的慢性内侧前额叶皮质(medial prefrontal cortex, mPFC)注射对大鼠旷场行为、Morris水迷宫空间学习和逆反学习的影响。研究结果表明, mPFC的慢性BDNF阻断显著降低了大鼠在逆反学习测试中的逃离潜伏期和运动距离即增强了大鼠的逆反学习能力, 但不影响其旷场行为和水迷宫空间学习能力。同时, 慢性阻断mPFC-TrkB受体也并未导致大鼠海马BDNF蛋白含量的显著改变。这些结果提示, 对于大鼠的Morris水迷宫空间学习和逆反学习, mPFC-BDNF主要在逆反学习调节中发挥重要作用。这对于进一步探索海马和mPFC在调节个体认知功能中各自的作用及其潜在的相互关系提供了有力的证据和支持。     

情绪复杂性对精神症状的影响途径及干预技术

情绪复杂性指的是个体情绪体验的多样性和分化度。情绪复杂性影响了精神症状的形成, 它不仅通过改变情绪调节策略的频率和程度来影响精神症状, 而且会影响情绪调节策略和精神症状之间的关系。基于情绪复杂性的干预增加了暴露治疗的疗效。正念能提升情绪复杂性, 但两者的作用机制可能有所差别。情绪复杂性的多角度测量、作用条件及脑机制应成为今后在临床领域的研究方向。     

创业失败与再创业意向的作用机制

近年来, 我国政府对创业支持力度不断加强, 创业活动日益活跃, 但失败率却居高不下。如何让创业者在遭遇失败后仍能保持再创业的意向是当前亟待解决的现实问题。拟综合采取横向问卷调查、纵向时间对比以及情景模拟实验的方法, 一方面探讨成就目标导向和社会比较在创业失败和创业失败学习之间的有中介的调节作用; 另一方面分析创业失败学习、创业自我效能感在创业失败和再创业意向之间的链式多重中介作用机制, 寻求由创业失败到再创业意向的不同路径, 这种探讨具有理论创新价值。依据实证研究的结论在实践中指导创业者通过上行比较, 锁定学习目标, 激发再创业意向; 通过提高自我怜悯水平, 使创业者摆脱消极情绪的困扰, 激发掌握性学习动机, 确立再创业的意向, 对于创业者具有重要指导意义。社会比较和自我怜悯的干预研究具有鲜明的中国文化特色。     

Emotional Intelligence of Foreign and Local University Students in Singapore: Implications for Managers

Does intelligence alone explain our achievement at work or in life? Contrary to our belief that academic achievement matters very much in the success we have in working life, Chen et al. (1998) has shown that close to 90% of success in leadership positions is attributable to Emotional Intelligence (EI). Considering that EI can be a potential determinant of our achievement in working life, this study aims to determine if there is any significant difference in the EI of local and foreign undergraduates studying in universities in Singapore. The “Emotional IQ Test” was administered to 100 undergraduates from various fields of studies from the National University of Singapore and Nanyang Technological University, of which 31 had foreign education background. This study showed that foreign undergraduates have a higher EI score than those with local education background. In addition, by examining the relationships between variables such as age, gender, year of study and EI, it was found that males have higher EI scores than that of females. The implication for managers is that staff should be evaluated on their own merits such as their EI rather than on academic results.     

中学生学业自我妨碍的影响因素研究

该研究以972名中学生为被试,采用问卷调查法,考察成就目标定向、学业自我效能感、焦虑、抑郁对中学生学业自我妨碍的影响.结果表明:掌握回避目标、成绩接近目标、成绩回避目标、焦虑、抑郁对学业自我妨碍有显著的正向预测作用;掌握接近目标和行为效能对学业自我妨碍有显著的负向预测作用.     

工作记忆中阅读信息的协调性整合

采用动窗技术探讨当前信息跟工作记忆中的信息发生协调性整合的特点.两个实验的结果表明,当前信息必须与工作记忆中存在的协调性信息有局部的不一致或不协调时才能引发协调性整合;工作记忆中的协调性整合会改变先前有关信息的表征方式,文本阅读过程既包含流畅性阅读,又包含以协调性整合为重要形式之一的整合性阅读,两种阅读可以灵活的交替发生.     

THE ADAPTATION OF THE FAMILY ENVIRONMENT SCALE TO CHINESE CHILDREN AND ADOLESCENTS IN HONG KONG

Moos and Moos' (1986) Family Environment Scale (FES) was adapted to the Chinese children and adolescents in Hong Kong. The major sample included 1,174 subjects from three elementary schools and seven high schools. Two subscales, Expressiveness and Independence and a few items were deleted based on the psychometric analysis. The FES scale intercorrelations were consistent, and the factor pattern of the remaining eight scales was explicable in terms of the characteristics of the Chinese culture. Results also showed that middle class families in general had a more positive family social environment than the working class families.     

Verbal memory elicited by ambient odor.

This study examined whether an ambient odor can act as a contextual cue for retrieval of verbal stimuli. Subjects (N = 47) learned a list of 24 words while exposed to one of two odors (either jasmine incense or Lauren perfume) and subsequently relearned the list with either the same or the alternative odor present. Superior memory for the word list was found when the odor present during the relearning session was the same one that had been present at the time of initial learning, thereby demonstrating context-dependent memory. There were no differences in initial learning between the two odor conditions. No differences in pleasantness or intensity were found between the odors.