中文阅读中长距离回视引导机制的眼动研究

从记忆的角度,探讨中文阅读中长距离回视的引导机制。采用眼动实验,操纵了回视条件(实验1)、回视可见性(实验2)、目标词位置及词频变量。结果发现:与不阅读组相比,阅读组的最初回视误差更小,定位效率更高;与可见组相比,不可见组累积回视距离更大,且难以正确定位目标;目标词位置主效应显著,而词频主效应不显著。结果表明,回视具有空间选择性,最初的回视由空间记忆引导,最初回视后的修正眼跳在文本可见情况下才能正常进行,而词频这一言语属性对回视没有显著影响,本研究结果支持了空间编码假设。     

任务与字频对汉字阅读中情绪价效应的影响

两个实验均以汉字为材料,采用2×3被试内设计,分别使用语义范畴判断和语音判断任务考察了汉字频率对阅读中情绪价效应的影响。结果发现：在语义任务中,情绪价与字频之间交互作用不显著,低频消极字和积极字的反应时均快于中性字,高频消极字的反应时也快于中性字,但高频积极字与中性字之间无差异。在语音任务中,情绪价与字频之间交互作用显著,低频消极字和积极字的反应时均快于中性字,而高频字的语音通达则不受情绪价的影响。汉字阅读中的情绪价效应不是自动化的过程,会受到字频与任务形式的影响。     

Characterisation of magnesium oxide and its interface with α-Mg in Mg–Al-based alloys

Magnesium oxide (MgO) films and particles have been collected by pressurised filtration of a Mg-8.6wt%Al-0.67wt%Zn (AZ91D) alloy melt. The morphology of the oxides and their interfaces with the α-Mg phase were investigated by high-resolution transmission electron microscopy. It was found that the oxide films consisted of large numbers of sub-micrometre-sized MgO particles, and that melt shearing can effectively break up the oxide films and disperse the oxide particles. For the first time, orientation relationships (ORs) of OR I: [1?1?1]_MgO～2° from (0?0?0?1)_α-Mg and (0?1?1)_MgO?//[2?1?1?0)_α-Mg; and OR II: (1?1?1)_MgO//(1?1?0?1)_α-Mg and [0?1?1]_MgO//[1?2?1?1]_α-Mg, were observed between the MgO particles and the α-Mg matrix. The calculated Bramfitt planar disregistries were 5.5% and 2.5% for the two ORs, respectively, indicating good lattice matching between MgO and α-Mg at the interface. With the evidence of grain refinement effect observed in the sheared AZ91D magnesium alloy, the possibility of MgO particles to act as potent nucleants for heterogeneous nucleation of α-Mg grains is discussed in terms of the crystallographic criterion.     

生理心理研究中的脑生物电方法及其微机处理系统

本主讨论了生理心理研究中脑生物电方法学上的有关问题,并在此基础上,设计编制了一个实用的脑生物电信号微机处理系统PSBSB。它主要适用于生理心理或神经生理实验室的脑自发电位或诱发电位(尤其事件相关电位)的分析处理,也可以发展成常规的检查系统。它不仅纳入了该领域中的主要方法,而且,数据处理能力和数据吞吐能力都比较强,特别是,它在二次处理能力,功能的灵活性和可发展性,硬件的可扩充性,以及易普及性等方面,有更大的优越性,更能适应于生理心理实验研究中发展的需要。     

工作－家庭冲突的前因、后果及干预策略

随着劳动力结构与工作特点的巨大变化,工作－家庭冲突问题日益突出。国内外研究主要从工作、家庭与个体三个层面对工作－家庭冲突的前因变量、后果变量及干预策略进行了深入探讨。前因变量主要包括工作与家庭层面的压力、特点,性别等;后果变量主要涉及个体的工作家庭满意感、组织承诺、离职和心身健康;干预策略涉及家庭友好政策和个体应对方式等。作者认为今后研究可以在工作－家庭冲突积极面、跨文化研究等方面进行突破     

中国医药创新面临的挑战及其应对

当下, 医药产业创新可持续发展已成为满足人民生命健康﹑维护国家安全、建设科技强国, 参与国际战略竞争的制高点和关键。历经十几年的发展﹐中国医药创新环境得到非常显著的改善, 但仍面临新的挑战, 中国医药创新又到了再次转型的关键节点。大力发展医药创新需要的不仅是政府资金支持或单项政策出台, 更是举国体制下清晰的顶层设计, 融合全产业链条(基础/临床研究、监管、支付等)建立起科学、完善的政策机制, 在双循环新发展格局下构建中国医药创新高质量发展的必然要求。

     

我国民众对SARS信息的风险认知及心理行为

采用分层抽样的调查方法,对全国17个城市的4231名市民进行了SARS疫情中风险认知特征和心理行为的研究。结果发现：（1）负性信息,包括患病信息和与自身关系密切的信息,更易引起民众的高风险认知; 正性信息,包括治愈信息和政府防范措施的信息,能降低个体风险认知水平。（2）我国民众5月中旬风险认知因素空间位置分析结果表明, SARS病因处于不熟悉和难以控制一端,“愈后对身体的影响和有无传染性”处于不熟悉一端,这是引起民众风险意识的主要因素。（3）结构方程分析结果表明,SARS疫情信息是通过风险认知对个体的应对行为、心理健康产生影响的, 并初步验证了风险评估、心理紧张度、应对行为和心理健康等指标对于危机事件中民众心理行为的预测作用     

知情同意的临床实践存在的问题及对策

临床医疗实践中贯彻实施知情同意原则旨在保护病人的权益不受侵犯,然而知情同意原则实施起来并不简单,它常常会受到主客体两方面种种因素的制约,陷入意想不到的困境。分析了知情同意原则在实施过程中可能出现的一些难以回避的问题,并针对这些问题探讨了若干对策。     

Fitting a psychometric function to price judgments: an analysis of consumers' discounted prices

We examined a psychometric function of price judgment, comparing the mental ruler model, which predicted inverted S-shaped psychometric function, with a power function. Subjects, 102 citizens living in Japan, were asked to rate satisfaction with specified discounted prices. Analysis indicated that predictions of the mental ruler model gave a better fit than those of the power function.     

Visual perception of surface wrinkles

To study the relationship between visual perception of magnitude of wrinkles and geometrical parameters of surfaces, four potentially relevant parameters of the surface profile were considered: the variance (sigma2), the cutting frequency (Fc), the effective disparity curvature (Dce) of the wrinkled surface over the eyeball distance of the observer, and the frequency component of the disparity curvature (Dcf). Analysis of garment seams with varying amount of pucker showed that, while the logarithm for each of these four parameters has a strong linear relationship with the visually perceived magnitude of wrinkles, following the Fechner Law, the effective disparity curvature (Dce) and the frequency component of the disparity curvature (Dcf) with visual perception appeared stronger. This modeling may be an objective method for measuring magnitude of surface wrinkles.