Exposure to violence reduces empathetic responses to other’s pain

Past researches showed that empathy for pain not only triggers a resonance mechanism between other and self, but also is modulated by contextual factors. Using functional magnetic resonance imaging, the present study demonstrated that short-term media violence exposure reduced both pain ratings and also the activation of anterior insula and anterior mid-cingulate cortex to other’s pain. Thus, violence exposure modulated empathic responses to other’s pain based on a physiological desensitization.     

Growth orientation of one-dimensional silicon nanowires prepared by thermal evaporation

One-dimensional silicon nanowires have been grown by thermal evaporation and their growth orientations determined by transmission electron microscopy studies. The nanowires, which are often highly curved in morphology and heavily twinned in microstructure, are crystallographically separated into several sections, each with a characteristic crystallographic orientation along the wire axis. Straight nanowires, or straight sections in a curved nanowire, are found to have non-unique crystallographic orientations when {111} twinning occurs.     

Enhanced mental rotation ability in time-space synesthesia

Time-space synesthesia is a variant of sequence–space synesthesia and involves the involuntary association of months of the year with 2D and 3D spatial forms, such as arcs, circles, and ellipses. Previous studies have revealed conflicting results regarding the association between time-space synesthesia and enhanced spatial processing ability. Here, we tested 15 time-space synesthetes, and 15 non-synesthetic controls matched for age, education, and gender on standard tests of mental rotation ability, spatial working memory, and verbal working memory. Synesthetes performed better than controls on our test of mental rotation, but similarly to controls on tests of spatial and verbal working memory. Results support a dissociation between visuo-spatial imagery and spatial working memory capacity, and suggest time-space synesthesia is associated only with enhanced visuo-spatial imagery. These data are consistent with the time-space connectivity thesis that time-space synesthesia results from enhanced connectivity in the parietal lobe between regions supporting the representation of temporal sequences and those underlying visuo-spatial imagery.     

流动儿童疏离感的特点及其与应对方式、学校态度的关系

采取整群抽样的方法,对成都及重庆两地591名流动儿童和272名城市儿童进行问卷调查,考察流动儿童疏离感的特点及其与应对方式和学校态度的关系。结果发现:(1)流动儿童疏离感各维度显著高于城市儿童;流动初中生的疏离感显著高于流动小学生,且男生的疏离感显著高于女生;(2)流动儿童疏离感的三个维度之间存在显著差异,其中社会疏离感最高,其次是环境疏离感,人际疏离感最低;(3)流动儿童疏离感对学校喜欢有显著的负向影响,而对学校回避有显著的正向影响;应对方式在流动儿童疏离感对学校态度的影响中起着部分中介作用。     

Decision-making deficits in drug addiction

Core aspects of addictive behaviour can be explained in terms of abnormal decision-making. Using recording of autonomic function during performance of two gambling tasks, Bechara et al. have recently identified three distinct neuropsychological subtypes in individuals with substance dependence. These subtypes may reflect dissociable patterns of disruption in limbic brain circuitry.     

文本结构和时间应激对网页阅读绩效的影响

探讨了文本结构和时间应激对网页阅读绩效的影响效应。采用 2× 3被试间设计 ,自变量为文本结构和阅读时间 ,因变量为找到相关信息的时间及途径的额外节点数。结果发现 ,主效应及交互作用的影响均十分显著。其中 ,当阅读时间为 10和 2 0min时 ,超文本阅读的绩效均显著低于线性文本 ,而在 30min时两者无显著差异 ;对超文本 ,三种阅读时间的效应存在显著差异 ,而对线性材料 ,阅读时间的效应无显著差异。结论 :时间应激对超文本阅读绩效的影响更为明显     

Comparative research on individual modernity of adolescents between town and countryside in China

A test of 300 young students on individual modernity in China was carried out. The results indicated that there was a significant difference in individual modernity between the students from town and those from the countryside, as well as between males and females. There were also differences in individual modernity between each two of the levels of education. The students from town were more modern than those from the countryside. The males were more traditional than the females. With the rising educational level, the students' traditionality will decrease and modernity will increase.     

中国证券投资者的投资行为与个性特征

本研究采用综合性行为金融学手段,探索证券投资者的一般行为特征、心理特征以及行为特征和心理特征之间的关系。本实验首先采用访谈法对专业人士进行访谈,了解投资者的基本心理结构、一般的行为方式以及对证券市场的信息进行加工、决策的主要因素。在访谈基础上编制调查问卷,在全国7个城市(北京、上海、深圳、武汉、成都、西安和沈阳)对1063名投资者进行了问卷调查,从心理学角度对中国证券投资者的行为与心理特征进行了分析。结果表明：中国股市还是一个政策市,投资者对所投资对象的了解程度越高,掌握的投资知识越多,以及具备较高的独立性和自我效能,盈利的可能性越大。     

中学生知识获得过程是从情景记忆向语义记忆转化的过程

本研究探讨中学生的知识掌握过程。针对2001—2002年度上学期教学内容,对初中二年级学生的四门课程分别进行两次测验。对于每道选择题,学生首先选择正确答案,然后指出记忆的意识状态：记住的、知道的、猜测的。结果发现,学生记忆意识类型的转变(由记住向知道)取决于课程类型、保持时间和学生等级。对于不同课程,学生占优势的意识类型不同,自然学科知道的反应占优势,社会学科记住的反应占优势;优等生知道的反应多于其他学生;随着学习时间的延长,中学生的意识类型发生了由记住向知道的转变,这表明知识掌握过程中,中学生的知识表征发生了由情景记忆向语义记忆的转变。     

解魅、分化与现代性

在前现代社会里,由于人们对生活采取一种一体化的、富有意义的态度,一元论的世界观产生了。在那个时代,人们不能清楚地区分不同的行动和不同的领域。随着世界的“解魅”,这种整体性的“世界图景”开始消解,行动的模式和标准出现分化,与行动相关的制度和系统也相应地分立,这便是现代社会的本质。并且,由于客观的价值秩序消亡了,我们的时代目睹了价值多元论的趋势,而这与自由主义的价值中立的原则紧密相关。