听障儿童外部情绪理解研究

通过自编的外部情绪理解问卷,考察了听障儿童表情识别、情绪情景识别和提示物理解等外部情绪理解三个成分的发展状况。结果表明:(1)听力障碍儿童在外部情绪整体理解、表情识别、情绪情景识别和提示物理解四方面的得分都显著低于普通儿童;(2)不同年级听力障碍儿童的外部情绪理解、表情识别、情绪情景识别和提示物理解四方面得分存在显著差异,不同性别听力障碍儿童外部情绪理解差异不显著;年级和性别的交互作用显著;(3)父母听力状况不同的听障儿童,其外部情绪理解水平差异显著。DD儿童的外部情绪整体理解、表情识别和情绪情景识别得分显著高于DH儿童。     

梵蒂冈艺术品中的阿波罗与耶稣基督

阿波罗神形象发展经历了"自然之神"等三个阶段,代表"光明"与"预言"之神形象的阿波罗才真正显示了"日神"风貌;现存的阿波罗神像中以梵蒂冈博物馆贝尔韦德里宫的阿波罗像最为优美;而米开朗基罗所绘《最后的审判》中的耶稣基督形象,是对此神像形态的原样借用;梵蒂冈艺术中阿波罗神与耶稣基督的这种关联,向我们揭示了古希腊文明在基督宗教中的保存与演变,并启发我们深入探究艺术与神学、人性与神性的关系。     

Perirhinal cortex is necessary for acquiring,but not for retrieving object–place paired association

Remembering events frequently involves associating objects and their associated locations in space, and it has been implicated that the areas associated with the hippocampus are important in this function. The current study examined the role of the perirhinal cortex in retrieving familiar object–place paired associates, as well as in acquiring novel ones. Rats were required to visit one of two locations of a radial-arm maze and choose one of the objects (from a pair of different toy objects) exclusively associated with a given arm. Excitotoxic lesions of the perirhinal cortex initially impaired the normal retrieval of object–place paired-associative memories that had been learned presurgically, but the animals relearned gradually to the level of controls. In contrast, when required to associate a novel pair of objects with the same locations of the maze, the same lesioned rats were severely impaired with minimal learning, if any, taking place throughout an extensive testing period. However, the lesioned rats were normal in discriminating two different objects presented in a fixed arm in the maze. The results suggest that the perirhinal cortex is indispensable to forming discrete representations for object–place paired associates. Its role, however, may be compensated for by other structures when familiar object–place paired associative memories need to be retrieved.Remembering an event in space often requires associating objects and their locations. Associating object and place information into a unitary event representation is believed to be a foundation of episodic memory (Cahusac et al. 1989; Gaffan 1994; Davachi 2006). It has been suggested that the hippocampus and its associated regions in the medial temporal lobe (MTL) are essential in this cognitive process, and amnesic patients with damage in the MTL structures exhibit severe deficits in associating object and place information (Smith and Milner 1981; Vargha-Khadem et al. 1997; Stepankova et al. 2004). Animal models produced by localized lesions in the hippocampus and other MTL structures also support the idea by showing that the lesioned animals are impaired in associating objects and places (Parkinson et al. 1988; Gaffan and Parker 1996; Sziklas et al. 1998; Bussey et al. 2001; Gilbert and Kesner 2003, 2004; Malkova and Mishkin 2003; Lee et al. 2005; Bachevalier and Nemanic 2008; Kesner et al. 2008; Lee and Solivan 2008). Although the theoretical importance of the MTL structures in object–place association has been well acknowledged, specific contributions of the MTL structures in object–place associative memory are poorly understood. The current study examined the role of the perirhinal cortex, one of the extra hippocampal regions in the MTL, using a behavioral paradigm previously shown to be dependent on the intact hippocampus (Lee and Solivan 2008).The literature suggests that the role of the hippocampus in the object–place paired-associate task is to put together object and place information into a unified and distinct event representation. It has been suggested that spatial information and nonspatial information (such as object information) may be streamed into the hippocampus in a relatively segregated fashion, the former information mostly fed through the medial entorhinal cortex to the hippocampus via the postrhinal cortex and the latter being fed through the lateral entorhinal cortex via the perirhinal cortex (Mishkin et al. 1997; Suzuki et al. 1997; Burwell 2000; Fyhn et al. 2004; Witter and Amaral 2004; Hafting et al. 2005; Hargreaves et al. 2005; Furtak et al. 2007; Kerr et al. 2007). In our previous study (Lee and Solivan 2008) in which rats were required to discriminate rewarding versus nonrewarding pairs of similar object–place paired associates, the hippocampal lesioned rats demonstrated severe and irrecoverable deficits. The results from the study not only corroborate the long-held view that the hippocampus associates object and place information, but also demonstrate that the hippocampus is critical for disambiguating similar object–place paired associates. However, it requires examining functions of other upstream structures of the hippocampus to conclusively assign the role of associating object and place information to the hippocampus. If, for example, lesions produced in the perirhinal cortex produce similar deficits, it would be premature to conclude that the association between object and place information uniquely occurs in the hippocampus.To elucidate the relative contributions of the MTL structures in the hippocampal-dependent object–place paired-associate task (Fig. 1), we manipulated the perirhinal cortex in the current study, one of the regions implicated as an object-information provider to the hippocampus (Knierim et al. 2006; Eichenbaum and Lipton 2008). Here we tested whether the perirhinal cortex was involved in the acquisition of new object–place paired associations. Importantly, we also tested the perirhinal cortical contributions to retrieving learned paired associates between objects and places. In the current study, the rats needed to pay attention to both object and place information. Therefore, if the perirhinal cortex is unique in its function for providing object information to the hippocampus, it is predicted that lesions in the perirhinal cortex will produce severe deficits as seen in the hippocampal lesioned animals in our previous study. A simple object-discrimination task that did not require spatial information was also employed to further examine the role of the perirhinal cortex only in specific conditions.Open in a separate windowFigure 1.Illustration of the radial arm maze and behavioral paradigms. (A) Phase 1: Two objects (Spider-Man and LEGO block) were presented on arms 3 and 5 in gray color. Only one of the objects was rewarded in arm 3 (Spider-Man) and arm 5 (LEGO block) irrespective of its locations in the choice platform. Possible configuration of objects and appropriate choices are provided for both arms. In each trial, only one arm was open in the maze and objects were available in that open arm. (B) Phase 2: For acquisition of novel object–place paired associations, a pair of new objects (Barney and Girl) was presented on arms 3 and 5. Possible locations of the objects are shown as in A. Each object was rewarded only in a particular arm (Barney in arm 3 and Girl in arm 5) irrespective of its location in the choice platform. (C) Phase 3: Illustration of the task using only one arm (arm 4) in the maze. Two new objects (Mr. Potatohead and Cylinder) were used and the Mr. Potatohead choice was rewarded regardless of its location in the choice platform.     

西南少数民族教育价值观的调查研究

在文献综述、开放式问卷和个别访谈的基础上,提出了西南少数民族教育价值观的理论构想,自编了西南少数民族教育价值观量表。约1,500名西南地区少数民族被试接受了测试。研究表明,该量表具有良好的信度和效度,西南少数民族的教育价值观包括教育效用、家族荣誉、个人发展、民族传承等四个维度,西南少数民族群众的教育价值观在性别和年龄不存在显著性差异,在民族和文化程度上存在着显著性差异。     

句子加工中的语义P600效应

句子加工领域的研究中,一般认为,N400效应与语义加工有关,句法违反通常引发P600效应。然而近年来一些研究发现,句子语义违反时也引发了P600效应,即语义P600效应。对语义P600效应的诱发原因及其功能意义,目前有三种代表性的解释:监控说认为,P600效应是由语言理解过程中的认知冲突引发的,反映了认知监控系统对可能出现的加工错误的检测与解决;而非句法中心动态模型认为语义P600效应反映的是句子理解过程中两条通路之间出现冲突时的持续分析;扩展的论元依赖模型则用新的句子加工模型来解释语义P600效应,认为语义P600效应与句法违反引发的P600效应产生于句子加工的不同过程。     

个人-组织匹配的概念、测量策略及应用:基于互动性与灵活性的反思

个人-组织匹配(Person-Organization Fit,简称P-O匹配)的提出契合了组织行为学中人与情境双向互动的研究趋势,同时也符合组织及其成员灵活应对动态格局的现实要求。这种以双边互动性和匹配灵活性为出发点和立足点的研究是P-O匹配的特色所在。然而,目前该领域考察呈现出淡化原有独特立意的倾向。为此,我们在梳理P-O匹配学术背景和社会背景的基础上,强调将互动性和灵活性这两点基本要求融入其概念界定、测量策略的选取及应用课题当中,是为P-O匹配特色的重拾。     

资源与环境经济研究的伦理思考

经济学与伦理学的分离导致了当代经济学的一大缺陷,资源与环境经济研究也不例外.现代资源与环境经济研究与环境(生态)伦理的分野,既表现在研究方法与手段的不同,更表现在出发点和思维方式的区别.从根本上说,资源与环境经济研究有涉伦理的问题有两个:一是有关伦理立场的根本理念问题,即发展终极目标和对环境价值的评价;二是对应伦理规范的基本方法或原则的问题,集中表现为经济分析中"效用"的加总和贴现.     

马克思早期伦理思想探析

马克思早期著作中的伦理思想内容丰富、主题多样。在扬弃近代启蒙伦理思想和黑格尔伦理思想的基础上,马克思不断从现实生活中获得启迪,逐渐明确了自己的伦理思想视域、道德实践方式和价值批判立场。马克思的早期伦理思想不仅是马克思伦理思想整体的重要组成部分,更是深入马克思伦理思想堂奥的入口和准确把握马克思伦理思想特质的逻辑起点。     

组织水平上的领导—员工交换(LMX)研究——LMX与组织公平

文章以领导-员工交换理论(LMX)研究的发展为线索,着重介绍了国外最新有关组织水平LMX的研究。论述了相关的研究结果和研究方法,用LMX理论与结果公平、程序公平和互动公平的概念讨论工作组织中员工的社会比较过程。最后指出组织水平研究对企业管理的实践意义。     

绝对音高感对音乐句法加工能力的影响

绝对音高感是一种敏锐的音高知觉能力。拥有这种能力的人可以在没有标准音(A4)参照下, 对所听到的音高进行命名。本文通过对比绝对音高感被试与不具有绝对音高感被试对音乐句法基本规则的知觉以及对音乐句法结构划分能力的差异, 探讨绝对音高感与音乐句法加工能力之间的关系。结果表明, 绝对音高感被试对音乐句法基本规则的知觉水平高于控制组; 同时, 这种知觉上的优势也延伸到他们对音乐句法结构的划分。这一结果说明, 绝对音高感被试不仅可以对音高进行孤立命名, 而且表现出对调性音乐音高关系加工的优势。