发展性阅读障碍与知觉加工

近年来许多行为实验和神经生理学实验都发现 ,发展性阅读障碍与基本知觉障碍有关。在视觉领域研究者提出了巨细胞障碍假设 ,这种假设认为阅读障碍者视觉神经系统中的巨细胞障碍导致他们对某种类型的视觉刺激加工存在困难 ,进而影响阅读。在听觉领域研究发现阅读障碍者加工快速、系列、短暂呈现的声音刺激存在障碍。研究者认为阅读障碍者加工快速刺激输入障碍反映了普遍的时间知觉障碍。这方面的研究发展非常迅速 ,理论观点非常明确 ,并且直接与内在的神经机制相联系 ,形成了与传统的“语言障碍”理论迥然不同的“知觉障碍”理论。“知觉障碍”理论综合了行为、认知和神经等多个层次的研究 ,反映了神经科学发展所带来的巨大影响和认知加工模块化理论的渐渐衰退。     

无意识认知的探索

本文介绍了无意识认知的研究历程和特点,其中着重阐述了内隐记忆和内隐学习两个领域,并评述了内隐记忆和内隐学习在研究历程、特点和理论三方面的相似点,在此基础上表达了对无意识认知领域的整合趋势的期待。     

初中生在方程学习中学习能力感,学习策略与学业成就关系的研究

探讨了初中生在代数方程学习中,代数能力感与方程能力感两类学习能力感、计划性策略、努力策略与认知策略三类一般学习策略、适宜性策略和多样性策略两类方程具体策略与学业成就之间的关系。研究结果表明,方程成绩优秀生和不良生在学习能力感和学习策略上存在着显著的差异,两类具体策略和两类能力感对方程成绩具有显著的影响。     

Manipulation of Components of Context: The Context Shift Effect and Forgetting of Stimulus Attributes

Seventy-two Sprague–Dawley rats were used to investigate the multidimensional features of the context shift effect and the forgetting of stimulus attributes in a Pavlovian differential fear conditioning paradigm. One day after training, a change in either conditioning box or room context resulted in substantial decrements in performance similar to that induced by a shift of both box and room contexts. Two weeks after training, a shift of either box or room context exerted no significant detrimental effects on responding. However, a combined shift of both box and room contexts still induced a severe performance deficit. These results suggest that changes in various components of the stimulus context can result in similar retention deficits, that several aspects of stimulus attributes are forgotten over a delay, and that changing several aspects of the stimulus complex can synergistically impair performance.     

智力落后的实验研究及普查结果的分析

智力落后,就其本身来说,不是一种综合症,而是许多不同病因导致中枢神经系统受到损伤,表现为大脑功能发生障碍的一种症状。它发生于发育阶段,是以智力低下和社会顺应不良为特征的。 智力落后的患病率在全世界范围都很高,虽然由于社会要求的标准及年龄取样不同而不完全一致。智力落后是当今社会面临的最重要的社会和医学问题之一,许多国家     

加工水平、回想策略与不自觉记忆

本研究有两项实验。实验一包括三种加工水平和三种不自觉记忆测验方式。结果表明,补笔不受加工水平影响。词干补笔是否受加工水平影响与词干补笔可能性的大小无关。实验二采用了问卷技术,在词干补笔测验后要求被试回答他在测验中是否进行了有意回想。结果表明,有意回想的被试对意义加工的单字比对结构加工的单字获得更高的起动效应;而没有回想的被试其结果不受加工水平影响,从而证实,词干补笔也不受加工水平影响。     

Unpacking the effects of information overload on the purchase intention of electric vehicles

China is currently under tremendous pressures to improve energy efficiency and reduce emissions. As an energy-saving transportation innovation, electric vehicles (EVs) can alleviate this dilemma. This study adopts the Stimuli-Organism-Response (SOR) framework to explore the effect of information overload on consumers' psychological state and subsequent adoption intentions of EVs. Based on the 367 valid samples from Auto 4S shops in EV pilot cities in Mainland China, this study reveals that information overload negatively impacts perceived value and perceived effectiveness but positively impacts perceived risk. Furthermore, information quality offsets the negative impact of information overload on perceived value and enhances the positive impact of information overload on perceived risk. Interestingly, information quality not significantly affect the relationship between information overload and perceived effectiveness. In addition, perceived value and perceived effectiveness are positively related to purchase intentions, while perceived risk is negatively correlated with consumers' purchase intentions. On the basis of these findings, we discuss the policy implications of EVs and provide suggestions for future development.     

Building blocks of idea generation and implementation in teams: A meta-analysis of team design and team creativity and innovation

Although organizations increasingly rely on teams to innovate, little systematic knowledge exists about how to design teams to do so. Building on the model of collaborative creativity and innovation and synthesizing findings from published and unpublished studies, this meta-analysis examines the role of team design on team creativity and innovation. We used random-effects meta-analysis to cumulate the correlations between different features of team design and team creativity or team innovation from 134 field studies representing 11,353 teams and 35 studies representing 2,485 student teams. We found that team tenure is curvilinearly related, autonomy-supportive leadership, task interdependence, and goal interdependence are positively related, and demographic diversity and team size are unrelated to team creativity and innovation. Examining meta-analytic path models, we found that task interdependence and supportive leadership positively relate to team creativity and innovation via team collaboration and team potency. In accounting for the literature, we found a dearth of studies examining team processes, some types of diversity such as racial diversity, and the role of team member turnover. We conclude by providing directions for future research and practical guidance about increasing team creativity and innovation through team design.     

公正世界信念与跨情境动机效应

采用2（公正世界信念状态：公正vs不公正）×2（中奖者的个性品质：正向vs负向）被试间实验设计,以在校大学生为被试,考察公正世界信念是否具有跨情境动机效应。结果发现：预先激活的公正世界信念状态迁移到了回忆不同个性品质中奖者奖金数额这个不同情境中,影响了人们的记忆。表明公正世界信念存在跨情境动机效应。     

空间参照框架的产生机制及与认知机能的关系

空间参照框架是个体表征空间方位的方式, 按照表征中心的不同分为自我中心和环境中心两种参照框架。长期对某一参照框架的持续激活可以形成对该空间参照框架的偏好, 不仅会影响个体的神经元结构, 还会对认知机能产生重要影响。偏好环境中心参照框架会增加海马及其附近脑区的灰质, 而偏好自我中心参照框架会增加尾状核的灰质。海马灰质体积增大会增强正常人的空间记忆能力。持续激活环境中心参照框架的个体会增加海马灰质体积, 从而降低患老年痴呆的风险。未来研究应关注, 地域差异、城乡差异等环境差异在空间参照框架与认知机能关系中的影响机制, 并进一步收集空间参照框架训练在老年痴呆病人中干预效果的实证证据。