Maternal supplementation of nucleotides improves the behavioral development of prenatal ethanol-exposed mice

Maternal ethanol consumption during pregnancy can induce learning deficits in the offspring. The objective of this study was to assess whether supplementation of exogenous nucleotides during pregnancy and lactation would ameliorate prenatal ethanol-induced learning and memory deficits in the offspring of mice, and to explore the possible mechanisms. In the present study, pregnant C57BL/6J mice were exposed to ethanol (5 g/kg body weight) intragastrically from gestational day (GD) 6 to GD15. The dams in exogenous nucleotide intervention groups were fed with feed containing 0.01 %, 0.04 %, or 0.16 % nucleotide powder, with control and ethanol groups receiving normal feed. The dams were allowed to deliver naturally and to breast feed their offspring. After weaning, behavioral tests were carried out in the offspring of each group. Serum oxidation indexes were analyzed, and the hippocampus of each offspring was collected and detected for acetyl cholinesterase (AChE) activity and the expression of p-CREB, CREB, and BDNF. The results showed that maternal supplementation with exogenous nucleotides during pregnancy could ameliorate prenatal ethanol-induced learning and memory deficits in the offspring of mice, through improving their antioxidant capacity, reversing hippocampus AChE levels, and allowing the expression of some proteins related to learning and memory. However, different sensitivities were found between the two sexes.     

Changes in cooperative behaviour and belief in finitely repeated social dilemmas

Economic and psychological studies have determined the tendency to improve cooperation in initial interactions in which people are required to contribute in public good games. The current study examined the behavioural changes of individuals during finite interaction times. Participants were invited to make decisions twice in a step‐level public good game, and their belief in achieving the collective interest was measured. Participants were divided into three groups based on their first decisions. Results showed that high contributors demonstrated high levels of contribution in their subsequent interactions, whereas low and equal contributors increased their levels of contribution after the initial interaction. Additionally, the cooperative level of low contributors increased along with their cooperative belief. The theoretical and practical implications of changes of behaviour and belief in repeated social dilemmas were identified.     

Career-specific parental behaviors,career exploration and career adaptability: A three-wave investigation among Chinese undergraduates

The current research examined the effects of career-specific parental behaviors (reported by parents at time 1) on Chinese university students' career exploration (reported by students at time 2) and career adaptability (reported by students at time 3). A survey study was conducted among Chinese university graduates (N = 244) and their parents (N = 244). The results supported a mediation model such that a high level of parental support and a low level of parental interference had beneficial effects on Chinese undergraduates' career exploration, which in turn positively predicted their career adaptability. Lack of parental career engagement had a direct negative effect on career adaptability. Significant interaction effects were also found among these three types of parental behaviors such that at a lower level of lack of parental career engagement, the positive effects of parental support, as well as the negative effects of interference on career exploration were stronger. The corresponding moderated mediation models were also supported. These findings carry implications for research on career construction theory and career counseling practices.     

Your Face Says It All: Closeness and Perception of Emotional Expressions Among Females

The purpose of the present investigation was to assess whether interpersonal closeness facilitates earlier emotion detection as the emotional expression unfolds. Female undergraduate participants were either paired with a close friend or an acquaintance (n = 92 pairs). Participants viewed morphed movies of their partner and a stranger gradually shifting from a neutral to either a sad, angry, or happy expression. As predicted, findings indicate a closeness advantage. Close friends detected the onset of their partners’ angry and sad expressions earlier than acquaintances. Additionally, close friends were more accurate than acquaintances in identifying angry and sad expressions at the onset, particularly in non-vignette conditions when these expressions were void of context. These findings suggest that closeness does indeed facilitate emotional perception, particularly in ambiguous situations for negative emotions.     

群际态度与群际信念:耦合还是分离?

群际态度是人们对于某一群体的喜欢或不喜欢,包括外显群际态度和内隐群际态度,它是一个群体对另一群体正负连续体的评价。群际信念是人们对某一群体特性的刻板印象。以往研究认为,群际态度和群际信念是耦合关系,相互影响,相倚存在。但群际态度和群际信念也存在分离性证据,即存在矛盾性和非统一性。为何形成耦合或者分离,文化定型论、群际态度补偿机制(低地位群体的创造策略、高地位群体的慷慨策略),以及认知差别等都成为调节性平衡点。探讨群际态度和群际信念的分离性关系和作用机制对于干预和消弭群际边界与群际冲突,缓和群际关系具有深远影响,可以支持其独立路径予以针对性干预方案。     

最后通牒博弈中提议者情绪预测偏差对公平决策的影响:公平感知的作用

为探讨提议者情绪预测偏差对公平决策的影响以及其中介机制,采用了两轮最后通牒博弈提议者实验任务,第一轮测量分配方案被接受和拒绝的情绪预测偏差,第二轮测量提议者的分配方案。研究结果表明:(1)提议者情绪预测偏差影响公平决策;(2)公平感知在提议者情绪预测偏差与公平决策间起部分中介作用。研究认为,提议者对积极结果的情绪预测偏差,会降低其公平感知,进而降低其分配方案公平性; 提议者对消极结果的情绪预测偏差,会提高其公平感知,进而增加其分配方案公平性。     

心理契约的内容、维度和类型

市场经济本质上是契约经济,契约是组织存在的基础。在深层水平上,契约表现为员工和组织所持信念的独特组合,这就是心理契约。经济模式的转变和经济全球化的发展使员工和组织之间的心理契约发生了巨大变化。文章首先对西方实证研究中心理契约的内容、维度、类型进行分析,然后对心理契约的时代特点加以阐述,最后对西方心理契约研究中存在的问题,以及开展心理契约研究对我国企业人力资源管理的意义进行讨论。     

儿童认知发展动态测验

动态测验是一系列有着共同基本假设的多种能力测验的统称,是以维果茨基的最近发展区理论和实验为基础,针对传统静态测验低估弱势儿童能力、缺乏对教育实践的有效指导而提出的测量范式。它采用与智力测验相似的项目,以学习率、迁移能力和认知改变为指标,通过在测验中提示和干预的方法考查个体潜在的认知发展水平。该着重介绍了当代动态测验影响较大的几种方法或技术：Feuerstein的中介学习、Budofr的训练测验、Campione和Brown的逐步提示法、Guthke的学习测验、Carlson和Wiedl的极限探测法,并试图对动态测验进行整体评价。     

Intrusive Psychological Control and Children’s Behaviors in Chinese Multigenerational Families: Role of Children’s Temperamental Reactivity

Journal of Child and Family Studies - The coparenting between grandparents and parents is increasingly prevalent in Chinese society. Based on the family system theory and the differential...     

企业员工自我职业生涯管理的结构及关系

在文献研究的基础上 ,通过访谈、开放式问卷等方法 ,确立了企业员工自我职业生涯管理的结构。根据该结构 ,结合问卷及访谈所搜集的自我职业生涯管理活动 ,编制了自我职业生涯管理问卷 (简称ICMQ)。该问卷在177名被试中进行了初步调查 ,结果发现 :尽管该结构主体结构得到了证实 ,但有些方面如职业生涯发展策略比较混乱。在此基础上 ,修订问卷 ,重新选取 13家企业的中低层管理者及技术人员、文职人员进行了测试 ,获得了 4 4 9份有效问卷 ,对问卷的探索性因素分析结果表明 :该问卷是个五因素的结构 ,这 5个因素是职业探索、职业目标和策略确立、继续学习、自我展示和注重关系。为了进一步验证自我职业生涯管理问卷的结构效度 ,并获得问卷的信度和效度指标 ,研究选取了 11家企业进行了调查 ,获得了 399份有效问卷。验证性因素分析结果表明 :自我职业生涯管理是个并列的 5因素结构