Good Guys Can Finish First: How Brand Reputation Affects Extension Evaluations

This research investigates how consumer evaluations of brand extensions are affected by two distinct types of brand reputation: a reputation for social responsibility built through commitments to societal obligations, versus a reputation for ability developed by delivering quality offerings. Through six studies, we establish that while the two reputation types equivalently influence high fit brand extensions, a reputation for social responsibility (vs. ability) leads to more favorable responses toward low fit brand extensions by inducing a desire to support and help the company that has acted to benefit consumers. Furthermore, the facilitative effect of social responsibility on low fit brand extension evaluations is more prominent among consumers who value close relationships and caring for one another's well‐being (i.e., those with high communal orientation), and tends to dissipate when social responsibility initiatives are tainted with self‐serving motives (i.e., when these initiatives are aligned with the brand's core offering).     

稳定性冠心病何时需要PCI

目前稳定性冠心病通行的治疗策略是药物治疗的同时常规作冠脉造影,如果病变严重,则尽可能地作介入治疗。但最近COURAGE试验结果的公布,证实介入治疗仅可以缓解症状,但不能改善预后。因此,我们要对PCI在稳定性冠心病中的作用和定位重新进行思考。     

中央重新定向对听觉返回抑制的影响

采用线索一靶子范式考察听觉中央重新定向对听觉返回抑制的影响。结果表明：1）听觉中央重新定向的有无不是听觉返回抑制产生的关键因素,但它的存在能够较好地引导听觉选择性注意进行快速转移,提高听觉选择性注意的搜索效率;2）听觉中央重新定向对听觉返回抑制量的大小没有显著影响。     

关于闪光盲的研究——Ⅰ.闪光亮度、曝光时间和适应状态对闪光盲恢复时间的影响

在暗适应和在明适应(1×10~(-2)熙提)条件下,对11名正常视觉的男性受试者测定了闪光亮度、闪光时间对闪光盲恢复时间的影响。观察目标为6’视角的蓝道环缺口。结果表明:①在0.45—1.5熙提(暗适应条件)和2—36熙提(明适应条件)范围内,恢复时间与闪光亮度成线性关系。②关系曲线的斜率随闪光时间的加长而增大。③引起同样恢复时间的闪光盲,明适应时所需闪光亮度为暗适应时的3—5倍,实验结果可为防闪光盲护目镜减光倍率的确定提供参数。     

The effect of justified video game violence on aggressive behavior and moderated immersion: An experimental approach

The effect of violent video games on aggressive behavior is an important topic in the field of game research. Recently, growing evidence suggests that justified game violence decreases feelings of guilt caused by in-game immoral behavior. However, little is known about the impact on aggressive behavior, and whether other factors moderate this effect. In a two-factor experiment, we tested the impact of justification of video game violence on aggressive behavior, and whether this effect would be enhanced by game immersion. Pilot experiment 1 (N = 60) and pilot experiment 2 (N = 40) demonstrated that the justification of violence and game immersion was successfully controlled by avatar and graphics quality. In the Main experiment, 123 participants played one of four conditions of a video game (2 [justification: justified vs. unjustified violence] × 2 [immersion: high vs. low immersion]) and it was found that participants who played in the justified violence condition reported greater aggressive behavior than those in the unjustified violence condition. In addition, participants who played in high immersion reported greater aggressive behavior than those in low immersion. However, game immersion did not moderate the effects of justified violence. This unexpected effect is likely due to participants' distancing themselves from and identifying less with their violent avatars.     

突发性危机情景下抢购现象的发生及其应对策略

今年1到4月份,在我国一些地区出现了几次因SARS疫情恐慌导致的抢购风潮,其特点主要表现为突发性、群发性和快速平息的短暂性。这些特点与人们的风险认知机制有关。研究表明,情绪唤醒抑制人类认知中的控制性加工部分,但对自动化加工部分起促进作用。人们在危机情景下的快速应对行为主要是自动化的,事前培训和行为习惯决定了自动化反应的策略和方式。由于口传信息的高情绪唤醒水平和操作上的方便易行,恐慌性抢购便被引发出来。     

系列包含的项目数、项目之间的间隔时间与系列位置效应

以中国汉字为材料,考察系列包含的项目数、项目之间的时间间隔与系列位置曲线不同部分记忆性质分化的关系。结果表明,(1)提取过程的重要性。(2)在包含11个项目、并且项目之间的时间间隔为400毫秒的系列中,系列位置曲线的首因部分表现为联想记忆的性质,是依赖于线索的提取;近因部分表现为绝对记忆的性质,是依赖于记忆痕迹的提取。(3)系列位置曲线不同部分记忆性质的分化,于系列包含的项目数和项目之间的间隔时间有关,结果体现出这两个因素的交互作用。     

The Determinants of Happiness of China’s Elderly Population

“Three generations under one roof” is an old Chinese saying used to describe a desired living arrangement. The traditional concept of happiness for a Chinese elderly person is being able to “play with grandchildren with candy in mouth, enjoy life with no cares.” In a fast-changing economy like China, how does society, especially the elderly themselves, view these traditional values? Using the 2005 Chinese General Social Survey, we study the determinants of happiness of the Chinese elderly. We are particularly interested in whether living with their child and whether living with their grandchild affect the happiness of the elderly. An important empirical concern is that unobserved permanent income may affect both the living arrangements of the elderly and their level of happiness. We include property ownership variables as proxies and also adopt an instrument variable approach to identify the causal relationship between the elderly’s happiness and their living arrangements. We find that, conditional on living with a grandchild, living with one’s child has a negative effect on the elderly’s happiness. Furthermore, elderly Chinese who live with grandchildren are associated with a much higher degree of happiness than their counterparts.     

跨视听通道的错误记忆ERP新旧效应研究

Smith和Hunt于1998年首次采用DRM范式提出了错误记忆通道效应,即视觉学习通道较之听觉学习通道会降低错误再认或错误回忆,这不仅引发了一系列关于错误记忆通道效应的研究,而且提出了许多关于错误记忆通道效应产生机制的不同观点。本实验采用DRM范式,运用ERP技术,考察了视觉与听觉通道在提取阶段的错误记忆新旧效应,以从更深层面认识错误记忆的内在加工机制。结果发现,视觉与听觉通道在300-500ms和500-700ms两个时间窗都发现了ERP新旧效应,但在脑区位置以及错误记忆的新旧效应方面存在差异,这表明视觉通道与听觉通道在提取阶段的新旧效应存在不同的脑神经活动,不同学习通道在提取阶段的监测加工差异在导致错误记忆通道效应方面起着非常重要的作用。     

Effect of sample size on ductility of metallic glass

With decreasing sample dimension, the compressive plastic strain of a Zr-based metallic glass increases from near zero to as high as 80% without failure. This indicates that macroscopically brittle or ductile deformation behaviour can occur in chemically and structurally identical metallic glass. A concept of critical shear offset is proposed to explain the strong size effect on the enhanced plasticity of metallic glass by taking the shear fracture energy density into account. This finding provides new understanding on the principle that for metallic glass ‘smaller is more ductile’, even on the macroscopic scale.