加减法问题大小效应的加工机制

有关问题大小效应的加工机制存在两类不同的解释。初期的提取理论认为,问题大小效应是由算术知识的储存表征的各种特征所决定的。后期研究开始关注如计数、分解这样的非提取策略在问题大小效应形成中的作用,认为大问题任务中更低的提取效率和非提取加工效率以及更多采用非提取策略都会造成算术任务的问题大小效应。由于加法和减法中使用的各种加工策略的比重不同,所以表现为不同形式的问题大小效应。今后研究应该考虑采用不同的研究手段,并统一划分大问题和小问题的标准     

BDNF基因与抑郁

抑郁的发生发展具有重要的遗传基础。随着细胞分子生物学实验方法以及分子遗传技术的进步, 与神经可塑性有关的BDNF基因作为抑郁遗传学研究的候选基因日益受到关注。概观而言, 已有相关研究主要探查了BDNF基因与抑郁的直接关联, BDNF基因与其他基因对抑郁的交互作用, 以及环境因素对BDNF基因与抑郁关系的调节作用。然而, 研究结论尚存在分歧甚至相互矛盾。其原因包括研究设计、环境测量指标、抑郁测量方法与研究对象种族背景等方面的差异。未来研究可通过采用多基因–环境设计, 考察被试种族、性别和年龄的调节作用, 以及探究潜在的作用机制等进一步推进和深化有关BDNF基因与抑郁关系的研究。     

老年人依恋对主观幸福感的影响:孤独感与自尊的中介作用

采用亲密关系经历量表（ECR）、UCLA孤独量表、罗森伯格自尊量表和纽芬兰纪念大学幸福感量表（MUNSH）对311名老年人进行调查,探讨老年人依恋对主观幸福感的影响,以及孤独感和自尊的中介作用。结果发现：（1）孤独感在依恋焦虑对主观幸福感的影响中起部分中介作用,孤独感在依恋回避对主观幸福感的影响中起完全中介作用;自尊在依恋焦虑、依恋回避对主观幸福感的影响中不起中介作用;（2）孤独感、自尊在依恋焦虑、依恋回避对主观幸福感的影响中起链式中介作用。     

应用项目反应理论对《中国士兵人格问卷》的项目分析

采用项目反应理论（IRT）对《中国士兵人格问卷》进行项目分析。计算机呈现中国士兵人格问卷（CSPQ）对100,523名适龄男性青年进行测验,随机抽取2676名任一维度标准分均低于70的定为合格组;将任一维度大于70分并经专业人员访谈不合格的274名定为不合格组;从精神病院抽取男性年龄相当的221名缓解期精神分裂症患者定为精神病组,并完成CSPQ测验。运用基于IRT的双参数Logistic模型进行分析;结果发现,区分度参数超过区间(0.30,4.00)的条目删除前后,被试的能力值与标准分均存在显著相关;精神病组的测验分数经IRT分析,图形曲线与不合格组有高度吻合。研究结果说明,在测验精度基本相同的条件下,应用IRT可以减少施测条目,提高测验效率,可在一定程度上更精确地区分被试的特质水平     

网络成瘾倾向者对负性表情注意的脱离困难

采用Young编制的IAT量表从382名青少年中筛选出网络成瘾倾向者15名,非网络成瘾控制组被试18名,利用视觉搜索范式比较了两组被试对真人面孔和卡通面孔表情的注意偏向差异。结果表明：（1）在注意快速定向阶段,当要求被试快速准确地从中性面孔矩阵中搜索高兴或者愤怒面孔时,相较于控制组被试,网络成瘾倾向者搜索愤怒面孔更迅速,尤其表现为对卡通愤怒面孔的快速定向优势;（2）在注意的维持和脱离阶段,当在愤怒或高兴面孔矩阵中搜索中性面孔时,相较于控制组被试,网络成瘾倾向者在更具威胁性的真人愤怒面孔矩阵中最难脱离。结论：网络成瘾倾向者具有负性注意偏向特点,表现为对负性表情具有快速定向和解脱困难。且相较于控制组被试,网络成瘾倾向者对卡通面孔注意定向更快而更难从真人愤怒面孔矩阵中脱离,也说明了其注意偏向主要为对负性信息的注意解除困难。     

男性与女性对不同性别和种族面孔识别的差异

研究以大学生为被试,采用延时匹配任务,旨在探讨性别和种族因素对面孔识别的影响,结果发现:(1)男、女被试对女性面孔识别的反应时及正确率均优于男性面孔;(2)被试对不同种族女性面孔识别的优势存在差异,被试对高加索女性面孔的识别表现为更高的正确率,而对中国女性面孔的识别表现为更快的识别速度;(3)面孔种族是导致女性面孔识别优势的重要影响因素。研究表明,面孔识别受到面孔种族、面孔性别和被试性别共同作用的影响。     

Association between Child Abuse and Health Risk Behaviors among Chinese College Students

Little is known about the link between child abuse and health risk behaviors among Chinese college students. This cross-sectional study examined the prevalence of child abuse and its relations with individual and clusters of health risk behaviors among Chinese college students. A total of 507 students participated in this survey. The prevalence of child abuse from the highest to the lowest was emotional neglect (53.9%), physical neglect (49.0%), emotional abuse (21.8%), physical abuse (18.3%), and sexual abuse (18.1%), respectively. Males were more likely to report child abuse than females (p?<?0.01). For males, emotional abuse was associated with internet addiction [OR?=?2.28; 95%CI (1.00, 5.20)] and suicidal behavior [OR?=?12.47, 95%CI (2.61, 59.54)]; while sexual abuse was associated with internet addiction [OR?=?2.30, 95%CI (1.14, 4.66)]. For females, emotional abuse was significantly associated with increased risks for self-harm behavior [OR?=?15.03, 95%CI (3.59, 63.07)] and suicidal behavior [OR?=?5.16, 95%CI (1.63, 16.40)]. Physical abuse was related to risks for internet addiction [OR?=?2.50, 95%CI (1.03, 6.04)] significantly. Two-step cluster analysis showed that participants in clusters with more health risk behaviors reported higher scores of child abuse. These findings suggest that child abuse was associated with both individual and clustering of health risk behaviors among Chinese college students.     

Childhood Adversity and Children’s Academic Functioning: Roles of Parenting Stress and Neighborhood Support

Existing research has shown that adverse childhood experiences from family instability and lack of safety increase children’s risk for poor academic functioning. A recent conceptual framework, however, has emphasized the need to investigate how parenting might mediate while community context might moderate the association between childhood adversity and children’s cognitive development. In the current study, we tested the roles of parenting stress and neighborhood support in the association between cumulative childhood adversity and children’s current academic functioning. We conducted a secondary data analysis on the subsample of school-aged children (i.e., 6–17 years old; N?=?65,680) from the 2011–2012 United States National Survey of Children’s Health (NSCH). The parent provided telephone survey data on six types of adversity (e.g., parent’s divorce) that the target child experienced, parenting stress, neighborhood support, as well as the child’s academic functioning. Controlling for the child’s age, gender, ethnicity, and the parent’s education level, structural equation modeling (SEM) revealed a significant moderated mediating effect: parenting stress partially mediated the association between history of childhood adversity and children’s current academic functioning (β?=??1.760, p?<?0.001), while neighborhood support moderated the association between parenting stress (β?=?0.492, p?<?0.001) and academic functioning.     

基于个体优势的工作重塑

发挥优势(using strengths)能让我们感到充实、真实与高效;而重塑工作(crafting job)则使我们的工作充满意义、认同与使命感。整合优势理论、工作重塑、职业成功和呼唤(calling)研究的已有成果,可以发现:(1)基于个体优势的工作重塑(strengths-based job crafting,SJC)是一个新构念,对优势理论与工作重塑研究具有重要的理论贡献与实践价值;(2)SJC能对个人职业成功、呼唤感及组织绩效产生影响;(3)影响SJC的因素包括个人因素、组织因素与社会文化价值取向。未来研究应以实证的方式重点探索中国情境下SJC的测量与影响机制问题。     

<Emphasis Type="Italic">DSM-5</Emphasis> Posttraumatic Stress Disorder Symptom Structure in Disaster-Exposed Adolescents: Stability across Gender and Relation to Behavioral Problems

Given the significant modifications to posttraumatic stress disorder (PTSD) symptom criteria from DSM-IV to DSM-5, a better understanding of the dimensionality underlying DSM-5 PTSD symptoms among adolescents is needed. However, to date, whether gender moderates the latent structure of DSM-5 PTSD symptoms in youth remains unclear. Meanwhile, little is known about how distinct PTSD dimensions relate to adolescent behavioral problems. The aim of this study was to fill these gaps. A sample of 1184 disaster-exposed Chinese adolescents (53.8 % girls) with age ranging from 13 to 17 years (M = 14.3, SD = 0.8) completed the PTSD Checklist for DSM-5, and the Withdrawn, Aggressive Behavior, and Delinquent Behavior subscales of the Youth Self-Report. Confirmatory factor analyses revealed that the seven-factor hybrid PTSD model provided the best fit to the data for both girls and boys. Measurement equivalence of this model held across gender, although girls had higher mean scores than boys on some factors. Differential patterns of associations emerged between PTSD dimensions and behavioral problems, with anhedonia symptoms most strongly relating to social withdrawal, and externalizing behavior symptoms most strongly relating to aggression and delinquency. These findings further support the gender invariance and external criterion validity of the newly refined hybrid model that best represents DSM-5 PTSD symptom structure in youth, and carry implications for accurate assessment, diagnosis, and gender comparison of DSM-5 PTSD symptomatology, and potential symptom targets for PTSD intervention among adolescent disaster survivors.