青少年网络受欺负与自伤的关系:友谊质量与反刍思维的调节作用

为探讨青少年网络受欺负与自伤行为的关系,以及友谊质量和反刍思维在二者关系中的调节作用,采用青少年自我伤害问卷、网络受欺负问卷、友谊质量问卷等对1805名青少年进行调查。结果表明,网络受欺负对自伤行为有正向预测作用,且友谊质量和反刍思维共同调节二者的关系,即在低友谊质量高反刍思维的情况下,网络受欺负对青少年自伤行为有明显影响。提示心理干预者要注意帮助网络受欺负者寻找同伴友谊情感支持和构建理性健康认知模式。     

轻度抑郁者在自我相关编码任务中的加工偏向

对３０位轻度抑郁者和３３位非抑郁者采用自我相关编码任务范式,进行自我图式的实验对照研究。     

汉字属性匹配与大脑两半球协同活动

在识别汉字时,大脑两半球同时加工的作业成绩是否随加工阶段的增加而显出优势。本研究用汉字形、音、义三种属性分别相匹配的方法用用指定指定提取法,所得实验结果一致表明,形似材料双侧视野同时识别与单侧视野识别成绩无显著差别,而同音与近义材料则表现出双侧呈现显著优于单侧呈现的作业成绩。最后结合脑功能成像研究,对加工阶段影脑半球佃同活动的原因进行了讨论。     

海马突触传递长时程增强效应中的蛋白激酶

对海马突触传递长时程增强效应的研究已取得许多重要进展,其中发现很多蛋白激酶的参与,近年来由于转基因和基因打靶等分子生物学实验手术的应用,ＰＫＣ,ＣａＭＫⅡ和ＰＫＡ等多种蛋白激酶的同功酶或其不同亚单位在ＬＴＰ中的作用已在相应的变异小鼠上得到直接证实,文章概述了这些目前被认为参与了海马突触传递长时程增强过程的蛋白激酶及其作用。     

儿童对图画喻意理解的比较研究

本文针对儿童对图画中隐喻情绪的识辨和理解的发展特点 ,进行了跨文化研究。旨在探索儿童对图画喻意的敏感性的发展规律以及不同教育方式对儿童图画认知发展的影响。 3 60名 4岁到 2 0岁的中英被试参加了实验。结果表明 :在识辨作品任务及口头评价中 ,中国儿童比英国同龄儿童更早理解图画的情绪喻意 ,并很少对图画的悲伤喻意持忽略态度。提示不同文化背景下 ,儿童对图画喻意的理解存在发展上的不均衡性 ,中国的幼教方式也许促进了儿童对图画喻意理解的发展。     

Perforant path activation modulates the induction of long-term potentiation of the schaffer collateral--hippocampal CA1 response: theoretical and experimental analyses

In one computational model of hippocampal function, the entorhinal cortical input to CA1 is hypothesized to play a key role in the ability of CA1 to decode CA3 recodings. Here, we develop a modification of this CA1 decoder hypothesis that is applicable to several computational theories of hippocampal function, and then we electrophysiologically investigate one assumption of this new hypothesis. First, using biologically realistic estimates, we calculate that CA3-induced CA1 excitation is too high and that inhibition plausibly plays a role in this CA1 decoder model. Thus motivated, we turn to a physiological demonstration to substantiate the plausibility of the proposed mechanism. Using the rat hippocampal slice, we examine an interlaminar interaction between the distal perforant path input to hippocampal CA1 stratum moleculare and the more proximal Schaffer collateral input to stratum radiatum. Perforant path activation provides sufficient inhibition to block homosynaptic long-term potentiation elicited by a suitably strong stratum radiatum input. For this interlaminar interaction to be most effective, perforant path activation must both precede and follow Schaffer collateral activation. Perforant path-evoked inhibition in CA1 can thus serve as a viable mechanism in the learned decoder theory of hippocampal CA1.     

超常儿童数学能力的因素分析

培养与发展超常儿童的智力与能力是教育心理研究的一个重要课题。本文将在智力与能力发展理论的基础上,重点对组成超常儿童数学能力的因素进行结构分析。通过因素分析的方法抽出了五个主因素．即综合运算能力、逻辑思维能力、抽象概括能力、空间想象能力、灵活的形象思维能力,并对各能力特点作了进一步分析。本文的结果将为超常儿童智能发展的理论研究提供可资参照。     

Group boundary permeability moderates the effect of a dependency meta‐stereotype on help‐seeking behaviour

Previous studies have found that when low‐status group members are aware that their in‐group is stereotyped as dependent by a specific out‐group (i.e. a dependency meta‐stereotype is salient), they are reluctant to seek help from the high‐status out‐group to avoid confirming the negative meta‐stereotype. However, it is unclear whether low‐status group members would seek more help in the context of a salient dependency meta‐stereotype when there is low (vs. high) group boundary permeability. Therefore, we conducted two experiments to examine the moderating effect of permeability on meta‐stereotype confirmation with a real group. In study 1, we manipulated the salience of the dependency meta‐stereotype, measured participants' perceived permeability and examined their help‐seeking behaviour in a real‐world task. Participants who perceived low permeability sought more help when the meta‐stereotype was salient (vs. not salient), whereas participants who perceived high permeability sought the same amount of help across conditions. In study 2, we manipulated the permeability levels and measured the dependency meta‐stereotype. Participants who endorsed a high‐dependency meta‐stereotype sought more help than participants who endorsed a low‐dependency meta‐stereotype; this effect was particularly strong in the low‐permeability condition. The implications of these results for social mobility and intergroup helping are discussed.     

Psychometric Properties of the Shortened Chinese Version of the Family Resilience Assessment Scale

Family theory has refocused attention from deficits to family strengths, and interest in family resilience across cultures has become more widespread. However, few instruments were designed for quantitative research on family resilience. The Family Resilience Assessment Scale (FRAS) was designed to measure family resilience and has been administered in Western populations. The aim of this study was to adapt the FRAS for use with Chinese populations and examine its psychometric properties. The study was conducted using a sample of 991 university students in China (62.9 % female, mean age 20, SD = 1.12). First, the scale was translated and modified into Chinese, and good language equivalency was found. Next, confirmatory factor analysis was used to identify the best-fitting model. Results showed that the 3-factor model consisting of 32 items was an adequate fit. The goodness-of-fit index values for the model were χ ²/df = 5.97, CFI = .84, RMSEA = .08, SRMR = .05. Total scale reliability was α = .95. According to these values it can be said that the modified Chinese version of the FRAS was adapted successfully to the Chinese culture. Moreover, researchers and clinicians can use this instrument to assess family strengths when working with individuals in families experiencing adversity.