镜像神经元系统的研究回顾及展望

镜像神经元系统的发现使得研究者从一个较为统一的神经机制层面了解人类多个层次的社会认知活动。在猕猴大脑F5区发现的镜像神经元可以在抽象的层面上帮助猕猴理解他人行为的意图。利用脑成像技术,研究发现人类的镜像神经元系统能够匹配外界的知觉表征和内在的动作表征从而通过“居身模仿”这一过程来进行模仿、语言理解、理解他人的意图及情绪这些重要的社会认知活动。另外,镜像神经元系统在社会交往中也起着重要作用,最后,就镜像神经元系统在心理理论中的作用、了解自我-他人问题和镜像神经元系统的关系、动机、经验等因素对镜像神经元系统活动的调控等问题对未来的研究方向进行了展望     

躯体运动促进空间更新的环境依赖效应

Kelly, Avraamides和Loomis (2007)发现被试在新环境中空间更新失败, 而肖承丽和刘传军(2014)发现被试在新环境中可使用想象平移等策略来实现空间更新。为了探索该两项研究的异同, 本研究采用与Kelly等相同的实验范式进行研究。实验1被试在原学习环境中完成实验任务。实验2被试记忆完物体空间位置后, 转移至新环境, 在只依靠离线表征、离线表征与在线表征相协调和离线表征与在线表征相矛盾三种条件下完成相同的实验任务。结果发现, 被试在原环境中通过躯体运动和记忆两种方式促进空间更新, 具有同等有效性, 而在新环境中躯体运动显著差于记忆对空间更新的促进作用; 躯体运动和记忆对空间更新的促进作用在两种环境中均高度相关。研究表明, 躯体运动促进空间更新具有环境依赖效应, 与记忆对空间更新的促进作用相比, 躯体运动对空间更新的促进作用会随着环境的改变而降低。     

视觉预期的类型及神经机制

视觉预期是一种运用视觉信息的部分资源和先行资源对即将发生的事件进行预测的能力。为了人们更加清楚地认识视觉预期的内在加工过程,同时也有助于国内外研究者更为科学深入地探讨这种自上而下的加工,本文主要从婴幼儿和成人运动员两方面来阐述视觉预期的相关研究。首先从婴幼儿对物体相关属性和行为目标的视觉预期两方面探讨了视觉预期的类型,然后论述了成人视觉预期的神经机制。最后,指出今后的研究应加强视觉预期相关技术在临床诊断中的应用,注重环境在视觉预期中的作用,从神经网络角度研究视觉预期的神经基础。     

权力的三种心理机制及其影响

权力指控制有价值资源及他人行为结果的相对能力。心理学研究发现,权力不仅是等级制度的核心概念,一种结构变量、社会关系的基础属性,还是一种心理属性,即知觉到自己有能力影响他人的一种心理状态。这一发现促使研究者愈发关注权力效应背后的心理机制。本文在分别综述了权力效应三种心理机制（趋近系统激活、心理距离增加、诱发控制错觉）的基础上,详细分析总结了各心理机制及其影响与拥有权力的人（以下简称掌权者）的认知、动机、情绪乃至判断、决策、行为间的关系,并尝试阐述了各心理机制及其影响与促进集体利益繁荣这一权力产生初衷之间的关系。最后,根据研究现状,就权力各心理机制间的关系、心理机制如何运作、文化与心理机制间的关系等问题进行了讨论。     

情绪活动对免疫系统的影响

医学心理学新近研究表明,情绪状态及其所伴随的生理反应直接影响免疫系统的功能,积极情绪状态会增强免疫功能,而消极情绪状态则削弱免疫功能,且会提高人对疾病的易感性;情绪调节方式与免疫系统功能间存在着明显相关：积极的情绪调节有助于免疫功能的增强,而消极的情绪调节则导致免疫功能的减弱;情绪宣泄能够缓解创伤或压力事件对免疫功能的消极影响,而抑制消极体验则会导致免疫系统功能的降低,引发更为严重的身心健康问题。     

文化价值取向与自我调节点对反馈效果的调节作用

选择个体主义、集体主义文化价值取向和自我调节点作为影响反馈效果的调节变量,采用2×2（反馈方式、反馈对象）两因素组间实验设计,以公文处理练习为实验材料,对171名MBA学生进行反馈的干预实验研究。结果表明,集体主义倾向、自我调节点是影响反馈效果的调节变量,集体主义倾向强的人得到针对小组的反馈,公文处理成绩提高;表扬提升调节点的被试公文处理成绩反而降低。     

面部表情识别与面孔身份识别的独立加工与交互作用机制

面孔识别功能模型认为,面部表情识别与面孔身份识别是两条独立的并行路径。以往诸多研究者都认可并遵循二者分离的原则。但近期研究表明,面部表情识别与面孔身份识别存在交互作用。首先总结和分析已有的面部表情识别的研究成果,评述神经心理学与认知神经科学研究中的论争,然后介绍人脸知觉的分布式神经机制以及相关的实验证据,最后提出面部表情识别与面孔身份识别的多级整合模型,并展望研究前景。     

Maternal aggression as a model for acute social stress in the rat: A behavioral-electrocardiographic study

Maternal aggression of lactating rats was used to induce acute social stress in a resident-intruder paradigm. Behavioral and electrocardiographic responses of male intruders were simultaneously recorded. Cardiac electrical activity was measured by means of a telemetry system which ensured preservation of intruder's behavioral repertoire. Behavioral response to maternal attack was evaluated in terms of percent time spent in passive/submissive (p/s) and active/non-submissive (a/ns) patterns. This allowed us to classify the intruders as submissive, non-submissive, and intermediates. During the test, a significant decrease of average R-R interval (R-R) compared to baseline conditions and the occurrence of arrythmias of different nature were found. Ventricular arrhythmias, including premature ventricular beats and ventricular tachycardias, were present in all the intruders while R-R fluctuations and II degree atrioventricular (A-V) blocks only appeared in submissive and intermediate rats. Most ventricular arrhythmias occurred within the upper range of heart rate and were preceded by periods of low R-R variability. These electrocardiographic events were temporally associated with a/ns behavioral patterns and were related to an increased prevalence of sympathetic activity. On the other hand, R-R fluctuations and II degree A-V blocks preceded by high R-R variability were synchronized with p/s behavior and were ascribed to a predominant inhibitory effect of vagal activation which becomes more pronounced as the level of sympathetic activity increases. © 1995 Wiley-Liss, Inc.     

廖平对《春秋》经的认识

廖平对《春秋》经的认识,有前后两个阶段的变化。在廖平的经学史研究阶段,认为《春秋》是孔子所制作的“经”,包含了孔子的“素王制作”之义,即为后世的“一王之法”;在其经学理论的建构时期,《春秋》经被廖平作为其建构孔经“人学”的经典。事实上,《春秋经》廖平的孔经天人体系中只不过是一种工具符号,且随着廖平经学理论的变化,被不断地赋予不同的功能。     

Child restraint system use in the United Arab Emirates

ObjectiveDeaths and injuries among infants due to traffic crashes in the United Arab Emirates (UAE) are very high when compared to other countries. An efficient way to improve the safety of children in moving vehicles is to use Child Restraint Systems (CRS) to hold the child during any possible collision. The aim of this study is to estimate the rate of CRS use among children under the age of five in UAE, to determine demographic characteristics that affect CRS use, such as parent’s age, and education level, and to assess parents’ perceptions and knowledge of this issue.MethodsA roadside observational study was done in two of the seven emirates that constitute UAE, involving 1000 randomly taken observations. Also, a questionnaire was randomly distributed to a sample of 494 parents of children under the age of five.ResultsResults of the observational study show that 16.7% of parents restrain their children in moving motor vehicles. Questionnaire results show that approximately 9% of respondents reported not or rarely restraining their children in moving motor vehicles. Also, 3.4% of them indicated their disbelief in the importance of CRS in reducing harm in case of a crash. Moreover, questionnaire results indicate that young, less educated and male parents reported lower use rate and have less belief in the importance of CRS use in harm reduction in crashes than other groups of parents.ConclusionsCRS use in UAE is very low and awareness of its importance needs to be improved. Based on the results, practical suggestions are put forward to increase CRS use rate and improve safety conditions for this group of road users.