刻板印象与特质建构关系的实验研究

根据平行-约束-满足模型的基本主张,利用情境模拟法探讨了特质激活与刻板印象的建构关系以及刻板化信息与个体化信息经由特质激活所表现出的交互影响。实验结果表明：(1)刻板印象影响特质的含义,特质会自动化地激活刻板印象,并且由特质及其具体的描述性内容所形成的个体化信息在具体的情景中联合起来影响刻板印象效应;(2)刻板印象与其他信息在加工通路上是相对独立或平行的;(3)刻板印象是兼具自动化加工与控制加工的混合体。     

知觉冲突印象形成的认知控制策略：以刻板化信息与反刻板化信息为例

以刻板化信息与反刻板化信息为例,采用词义Stroop范式和掩蔽版的目标-启动范式分别将实验任务分成高、低知觉负载或阈上、阈下启动两种水平,考察冲突信息知觉负载水平及其强度对他人印象形成的认知控制策略的影响。结果发现:(1)冲突信息启动方式与知觉负载的动态变化决定了个体对刻板化信息与反刻板化信息印象形成的认知控制策略。反应性控制耗费的认知资源少,对刻板一致化信息的印象加工更快捷,而对刻板冲突化信息的印象加工更缓慢,且易激活反刻板印象;而主动性控制耗费的认知资源多,对刻板一致化信息的印象加工更缓慢,而对刻板冲突化信息的印象加工更快捷,且易出现刻板印象偏差。(2)认知控制对刻板化信息与反刻板化信息采取不同的加工模式。刻板化信息与反刻板化信息同时在阈上启动时,其加工方式受到有意操作系统的主动性控制,即进行可意识到的、受意识控制的加工;而当这两类信息同时在阈下启动时,其加工方式受到自动监控系统的反应性控制,即进行无意识的、不受意识控制的加工。这些结果表明,个体通过所知觉到的刻板化信息与反刻板化信息,能灵活地在两种认知控制系统(有意操作系统vs.自动监控系统)中进行权衡,调节其权重(即,要么启动主动性控制,要么偏向反应性控制),从而形成最有利于他人的印象加工策略。即便处于知觉阈限之下,个体仍能通过无意识认知控制的方式对他人印象进行加工。     

高中生文理分科刻板印象的实验研究

采用2×4×2的重复测量的实验设计,探讨了性别是否会引起对于文理分科期望的刻板化加工以及刻板印象的意识性抑制问题,同时验证目前占主导地位的对范畴信息信任的减弱会增强对个体化信息的信赖这一假说。结果表明:(1)性别刻板印象会影响对文理科这种社会范畴的判断;(2)刻板印象比较顽固,较难受到意识性的抑制;(3)与刻板化信息完全相反的个体化信息的作用大于刻板化信息的作用,对刻板化信息的作用产生了一定的抑制,但无法完全抑制;(4)刻板印象与个体化信息的加工通路是平行的,同时它们彼此之间也是相互联系和限制的。     

广告中性别刻板印象的信息加工方式

通过操纵注意方式、刻板印象的启动方式及被试的刻板化状态,探讨了广告中性别刻板印象信息加工的方式和特点。结果表明：（1） 广告中性别刻板印象信息的加工是自动化加工和控制性加工共同作用的结果,刻板化启动引起更多的自动化加工,反刻板化启动引起更多的控制性加工;（2）注意方式影响广告中性别刻板印象信息的控制性加工而不影响其自动化加工,集中注意时控制性加工的贡献最大;（3）对于广告中的性别刻板化信息,刻板化程度高的人具有更严格的判断标准。     

情绪对内隐刻板印象表达的调节

采用IAT范式探讨不同情绪对内隐刻板印象表达的调节作用：实验1通过音乐唤醒被试的不同弥散性情绪状态(悲伤vs.愉悦), 并操纵其即时观念(刻板一致vs.刻板冲突), 探讨二者对内隐性别刻板印象表达的影响。实验2通过视频诱发被试不同的指向性情绪(同情vs.厌恶), 研究其如何调节大学生对不同感染途径的艾滋病患者和病毒携带者的内隐刻板印象表达。在此基础上引入四重模型(Quad Model)分析技术, 进一步细化情绪的调节作用究竟发生在认知加工的自动加工过程还是控制加工过程, 以及不同情绪是通过哪些心理成分调节内隐刻板印象的表达。结果表明：(1)当即时观念与刻板印象内容一致时, 积极弥散性情绪促进内隐刻板印象的表达; 反之则会抑制其表达; (2)弥散性情绪通过调节认知加工的自动化加工过程, 进而调节内隐刻板印象的表达, 但未参与调节控制性加工过程; (3)积极效价的指向性情绪会抑制被试对艾滋病患者的内隐刻板印象表达, 消极效价的指向性情绪会促进其表达; (4)指向性情绪通过自动激活成分, 调节内隐刻板印象表达的自动化加工过程; 同时也通过辨识力成分, 参与调节内隐刻板印象表达的控制性加工过程。     

内隐印象更新的心理机制

内隐印象更新表现出比外显印象更新更难、自动化或无意识发生和形成越快更新越快的特点。新近研究发现,相对简单的信息就能导致内隐印象的改变,其中,信息诊断性发挥了关键作用,新信息的强度、可信度、重新解释和归因以及预期刻板信息的一致性均是内隐印象更新的重要发生条件。社会认知维度和效价等因素、动机因素和不同的情绪情感等也对内隐印象更新有影响。进一步揭示内隐与外显印象更新差异的加工机制,探究不同信息要素的作用及印象更新的前因与后效,采用多样化的内隐范式及认知神经科学技术提供更多证据,加强本土化和跨文化比较研究将成为未来研究的重要方向。     

交叉分类及其对刻板印象的影响

社会分类(分类)是群体认知和印象评价的依据, 交叉分类作为一种认知过程, 是指在知觉或评价他人时, 同时在两个或多个类别维度上进行社会分类, 形成在多个类别维度上内外群体身份的交叉。研究发现交叉分类既可以降低刻板印象, 也可以增强刻板印象。对此, 类别化视角的解释强调群体身份的作用, 而个体化视角的解释强调多重类别背景下去类别化的作用。现有的研究在如何理解并考察这一影响的不同方向上仍存在分歧, 同时, 也未能认识到刻板印象对于个体认知与认同的意义, 存在明显不足。今后的研究应重点探讨类别化视角的动机与认知过程, 个体化视角的优势类别与加工方式, 以及以自我归类为基础的整合。     

刻板印象的意识性抑制

通过实验探讨了刻板印象的意识性抑制问题。被试为西北师范大学一年级本科生24人。结果表明：(1)性别刻板印象会影响对职业这种社会范畴的判断;(2）刻板印象效应比较顽固,较难受到意识性的抑制;（3）与刻板印象相反的个体化信息会削弱刻板印象效应;(4）刻板印象与个体化信息的加工很可能是平行的。     

印象形成中社会知觉信息效价冲突的认知控制效应

当个体信息与类别信息同时呈现时,个体的自我控制资源与信息效价产生交互作用,且共同影响他人印象形成的认知控制策略和信息加工深度。为进一步探究这一现象所产生的印象控制效应,采用自我控制资源损耗任务将96名被试随机分为高损耗组和低损耗组,并让他们完成内隐联想测验,以考察个体信息与类别信息的效价冲突时,他人印象控制策略如何受到自我控制资源与信息效价的双重影响。结果发现:(1)个体信息与类别信息的印象控制依赖于自我控制资源。(2)自我控制资源损耗与信息效价类型存在显著的交互作用。当个体损耗了较多的自我控制资源后,对效价冲突的个体信息与类别信息进行印象加工时,消极刻板印象的激活因受到这两类效价冲突信息的限制,只能依赖实时更新的面部表情信息,从而形成自下而上的反应性控制; 当个体损耗的自我控制资源较少时,对同样的个体信息与类别信息,不论效价相容或冲突,均能保持对消极刻板印象的自动激活,从而导致自上而下的主动性控制。     

外显与内隐刻板印象的分布式表征及其激活过程——基于认知神经科学视角的探索

刻板印象是人们有关群体的行为特征与特质属性信念化的认识, 它多以语义图式形式存储于长时记忆中。依据激活过程中意识参与程度的不同, 刻板印象具有内隐和外显两种表现型。不同于双加工理论“自动激活+认知控制”的研究视角, 本项目计划从内隐/外显记忆的多重记忆系统模型出发, 试图检验内隐与外显刻板印象在表征机制和激活过程上的差异。现有的多重记忆系统模型虽能解释内隐和外显刻板印象在记忆存储与提取上的机制差别, 但却无法阐释二者语义表征带有的心理理论特性以及二者的认知控制过程。有鉴于此, 本项目拟吸收“镜像系统−心理化系统”模型和双加工理论各自在特质与信念加工以及刻板印象认知控制上的理论优势, 深入探索内隐和外显刻板印象的分布式表征机制。借助ERP技术的时间过程优势和fMRI技术的脑区动态因果建模优势, 研究结果将最终揭示刻板印象分布式语义表征的动态加工机制。     

作为一种规范学科的信息伦理学

在信息伦理学领域 ,存在着两种不同的研究取向 :有些学者将信息伦理学作为一门非规范的伦理学来研究 ,而另一些学者则偏重于信息伦理学的规范性质。信息伦理学作为一门规范学科 ,应当研究不同类型的信息活动中已经存在或可能发生的伦理问题 ,而不能成为计算机伦理学、媒体伦理学、生物信息伦理学、网络伦理学的集装箱。规范的信息伦理学可以参考义务论、美德论、效果论的分析框架 ,而且要综合运用多种学科的方法。各国的信息伦理学有本土化的问题 ,但在全球性的信息沟通中 ,应当实现不同的信息伦理学的整合。     

系列项目时间和空间信息学习的分组效应研究

运用顺序回忆方法考察分组对系列项目时间和空间信息学习的影响。包括两个实验,实验一考察简化时间上的分组,或事先告知被试分组规则的情况下,分组是否会有助于时间顺序信息的学习。结果发现,这两个操作对时间顺序信息学习的促进作用不显著。实验二考察了垂直维度上不同形式的分组对空间位置信息学习的影响。结果发现,不同的分组方式对空间位置信息学习所起的作用不同。本研究支持了时间和空间两类顺序信息学习的内在过程不同,不应该用同一理论机制进行解释。     

信息在人类中传递处理的特点和其进化上的意义

人类信息在世代之间传递有两种途径:一种是依靠遗传,一种是通过非遗传的途径。遗传信息主要靠遗传基因来携带和传递,对个体的生存和延续是最重要的。而非遗传信息主要靠感觉和学习来获得,这种籍传媒的信息获取可能在人类中才具有。为何在生物进化上,要采用这种先天遗传,后天习得,这种两条腿走路的方式来在传布信息呢?目前尚没有一个合理的解释。在本文中我们分别就这两个方面发展进行论述。     

Knowing that strawberries are red and seeing red strawberries: the interaction between surface colour and colour knowledge information

This study investigates the interaction between surface and colour knowledge information during object recognition. In two different experiments, participants were instructed to decide whether two presented stimuli belonged to the same object identity. On the non-matching trials, we manipulated the shape and colour knowledge information activated by the two stimuli by creating four different stimulus pairs: (1) similar in shape and colour (e.g. TOMATO–APPLE); (2) similar in shape and dissimilar in colour (e.g. TOMATO–COCONUT); (3) dissimilar in shape and similar in colour (e.g. TOMATO–CHILI PEPPER) and (4) dissimilar in both shape and colour (e.g. TOMATO–PEANUT). The object pictures were presented in typical and atypical colours and also in black-and-white. The interaction between surface and colour knowledge showed to be contingent upon shape information: while colour knowledge is more important for recognising structurally similar shaped objects, surface colour is more prominent for recognising structurally dissimilar shaped objects.     

The contribution of early auditory and visual information to the discrimination of shot power in ball sports

ObjectiveIt is well-established that early visual information has an important role in human ability to play ball sports, as its correct interpretation promotes accurate predictions concerning the ball motion. Other research highlights that auditory information provides relevant cues in various sport situations. The present study combines these two lines of research with the aim to investigate the contribution of early auditory and visual information to the discrimination of shot power in sport-specific situations.DesignTwo experiments were run, one concerning soccer penalty kicks and the other concerning volleyball smashes. In both experiments there were three conditions: Audio, Audiovideo, and Video; a within subjects design was used, with the three conditions carried out in three different days and in a counterbalanced order among participants.MethodParticipants’ task was to discriminate the power of two penalties/smashes presented in rapid sequence, on the basis of a two-alternative forced choice paradigm.ResultsThe results revealed that, for both penalties and smashes, response accuracy was above chance level in all the three conditions; moreover, while for the penalties no difference among the conditions was observed, for the smashes participants were more accurate in the Audio and Audiovideo conditions compared to the Video condition. As concerns the response times, for both penalties and smashes participants were faster in the Audio and Audiovideo conditions compared to the Video condition.ConclusionsTaken together, the results suggest that the discrimination of shot power was more easily performed on the basis of early auditory information than on the basis of the respective visual information.     

Processing of indexical information requires time: Evidence from change deafness

In three experiments, the efficiency in detecting fear-relevant and fear-irrelevant visual stimuli are compared. A visual search paradigm is used where participants are presented with matrices of different sizes (4 objects/9 objects) and must determine whether all objects are taken from the same category or whether there is a discrepant one. Results from all experiments were consistent with the threat-superiority effect. Participants were quicker when the target was threatening than when it was not. Other indicators confirmed that the detection of threatening targets involves more efficient processes (reduced slopes, absence of position effects). A crucial aspect of these experiments was the comparison of evolutionary-relevant (snakes, spiders, etc.) and modern (guns, syringes, etc.) threats. The threat-superiority effect was repeatedly found for both types of target. Stronger effects were sometimes observed for modern than for evolutionary-relevant threats. The implications for evolutionary explanations of the effect of fear on visual attention are discussed.     

中文阅读中主题与语意信息在句子加工中的作用

采用移动窗口技术,初步探讨了主题、语意信息在句子早期加工中的作用。结果发现：（１）在中文阅读中,当主题信息比较弱时,对句子的早期加工没有作用;当主题信息比较强时,对句子的早期加工有作用。（２）句子语意信息的加工是即时的。     

运动视觉信息中时间知觉线索的实验研究

用两个实验考察在运动物体的时间知觉中影响ＴＴＣ判断的因素。     

Quality and readability of internet information about stuttering

PurposeWe examined the quality and readability of English-language Internet information about stuttering and evaluated the results considering recommendations by experts in health literacy.MethodA search of Internet websites containing information about stuttering was conducted. Three key words (i.e., stuttering, stammering, speech disfluency) were entered into five country-specific versions of the most commonly used Internet search engine. A total of 79 websites were assessed. Their origin (commercial, non-profit, government, personal or university), quality [Health On the Net (HON) certification and DISCERN scores], and readability [Flesch Reading Ease (FRE) score, Flesch-Kincaid Grade Level Formula (F-KGL), and Simple Measure of Gobbledygook (SMOG)] were assessed.ResultsOf the 79 websites, 38 % were of commercial, 42 % were of nonprofit organization, 15 % were of government and 5% were of university origins, respectively. Only 13 % had obtained HON certification and the mean DISCERN scores was 3.10 in a 5-point scale. The mean reading grade levels were at 13th and 14th grade and 100 % of the websites exceeded the recommended 5th to 6th reading grade level for health information.ConclusionsThe quality of Internet-based health information about the treatment of stuttering is generally adequate, but actual usability of the sites examined in this study may be limited due to poor readability levels. This is problematic in persons with poor literacy skills. Since the Internet can be readily accessed as a valuable consumer information resource, speech-language pathologists and other healthcare professionals have an opportunity to direct consumers to websites that provide readable information of good quality.