The faultline activation process and the effects of activated faultlines on coalition formation,conflict, and group outcomes

This research examines the effects of group faultline activation on coalition formation, conflict, and group outcomes. We distinguish between dormant faultlines (potential faultlines based on demographic characteristics) and activated group faultlines (members actually perceive subgroups based on the demographic characteristics) and hypothesize that while dormant faultlines do not automatically turn into active group divisions, a group’s entitlement configuration can activate divisions among group members. Study 1 was a construct validity study to verify the psychometric properties of the activated group faultline measure and explain its connection to other process variables. In Studies 2 and 3, we tested our hypotheses and found that groups with activated faultlines were more likely to form coalitions, have high levels of group conflict, and lower levels of satisfaction and group performance than dormant faultline groups. Furthermore, team identification moderated the effects of activated faultlines on group processes such that a strong workgroup identity decreased the likelihood that activated faultlines led to coalition formation and conflict.     

预防患者术中知哓的早期心理干预——颅内动脉瘤介入栓塞术患者中的研究

探讨早期心理干预在预防颅内动脉瘤栓塞术患者术中知晓的效果。将100例患者按入院先后顺序随机分为观察组和对照组,各50例,均实行整体护理,对照组给予常规的术前、术后护理,观察组在常规护理的基础上给予一系列针对术中知晓的心理护理干预措施。观察组干预前后焦虑程度明显减轻（P〈0．01）,对护理质量满意度均优于对照组（P〈0．05）,差异有统计学意义。针对不同患者心理状态进行系统的早期心理干预可减轻脑血管介入患者术前焦虑情绪,从而积极有效地预防颅内动脉瘤栓塞术患者术中知晓的发生,提高护理质量满意度。     

Partial awareness distinguishes between measuring conscious perception and conscious content: Reply to Dienes and Seth

In their comment on Sandberg, Timmermans, Overgaard, and Cleeremans (2010), Dienes and Seth argue that increased sensitivity of the Perceptual Awareness Scale (PAS) is a consequence of the scale being less exclusive rather than more exhaustive. According to Dienes and Seth, this is because PAS may measure some conscious content, though not necessarily relevant conscious content, “If one saw a square but was only aware of seeing a flash of something, then one has not consciously seen a square.” In this reply, we claim that there is a difference between conscious visual experience, which may be partial, and the resulting conscious content, which is conceptual. Whereas PAS measures the first, confidence judgments and post-decision wagering measure the second.     

Subjective discriminability of invisibility: A framework for distinguishing perceptual and attentional failures of awareness

Conscious visual perception can fail in many circumstances. However, little is known about the causes and processes leading to failures of visual awareness. In this study, we introduce a new signal detection measure termed subjective discriminability of invisibility (SDI) that allows one to distinguish between subjective blindness due to reduction of sensory signals or to lack of attentional access to sensory signals. The SDI is computed based upon subjective confidence in reporting the absence of a target (i.e., miss and correct rejection trials). Using this new measure, we found that target misses were subjectively indistinguishable from physical absence when contrast reduction, backward masking and flash suppression were used, whereas confidence was appropriately modulated when dual task, attentional blink and spatial uncertainty methods were employed. These results show that failure of visual perception can be identified as either a result of perceptual or attentional blindness depending on the circumstances under which visual awareness was impaired.     

错误正波的神经发生源与功能意义解释

错误正波(error positivity, Pe)是指在错误反应后200~600ms后出现的事件相关电位(ERP)的正偏转, 对Pe的研究有助于揭示人类错误加工机制的全貌。现有研究表明Pe主要产生于前扣带回喙部, 但不同的研究对其精细神经发生源并没有达成一致。Pe的功能意义解释主要有错误意识假说、行为适应假说、情绪评估假说。当根据有关P3的理论来解释Pe的功能意义时, Pe可能反映了对错误背景的刷新。然而上述每一种对Pe的功能意义的解释都还受到了一些研究结果的质疑和挑战。基于此, 作者对现有研究存在的问题进行了总结和分析, 并对今后如何对Pe的神经发生源和功能意义的进一步研究提出了建议。     

声符和义符在形声字语音、语义提取中的作用

采用眼动技术记录汉语阅读者在形声字的语音、语义提取中对声符和义符的注意规律, 考察形声字部件的位置、功能和正字法意识对汉字认知的影响。结果表明：(1)在汉字的视觉加工中, 阅读者对部件空间位置的注意加工优势受到声旁位置的调节。对左形右声结构的汉字, 被试更多地注意字的右边, 对右形左声结构的汉字, 被试更多地注意字的左边; (2)在汉语阅读者的正字法规则中, 存在着“左侧释义、右侧释音”的部件的位置-功能联结。(3)在通达形声字的语音、语义的过程中, 与义符相比, 声符具有注意资源的优势, 这种优势在语音提取任务中更加明显：声符无需依赖义符的信息便可以相对独立地激活整字的语音, 但声符需要义符的配合才能够提取整字的语义。     

基于日常经验取向的责任心理结构研究

基于日常经验取向,运用理论建构和深度访谈的方法,研究责任的心理结构以及责任情境的认知特征。对207名被试访谈研究的结果表明：（1）责任是人们频繁感知和体验到的一种社会心理现象;（2）人们体察到的责任情境,在职业活动和个人生活领域存在类型上的差异;（3）在职业活动中,人们更倾向于将责任归因于他人,而在个人生活中更倾向于归因于自己;（4）人们对责任情境性质的判定与责任事件最终能否达到预期目标有关;（5）责任心理结构共由情境起因、自我效能、成就感、内外动机等20个核心要素构成;（6）责任心理结构是一个由责任认知、责任情感和责任行为三者构成的一元单向决定模式。     

3-5岁儿童汉字方向敏感性的发展

通过Surface Pro触屏电脑呈现知觉匹配任务,记录儿童的主动反应,探查了83名3-5岁学前儿童汉字方向（倒置与镜像）敏感性的早期发展及其与汉字阅读能力的关系。结果发现,4岁儿童可以很好地区分正反方向的汉字,表现出汉字倒置方向的敏感性。但是,各年龄组儿童还未对镜像汉字表现出敏感性。学前儿童对汉字两种方向的认识表现出不同的发展轨迹。学前儿童的汉字倒置方向敏感性与其汉字阅读能力显著相关。     

Towards a “Sophisticated” Model of Belief Dynamics. Part I: The General Framework

It is well-known that classical models of belief are not realistic representations of human doxastic capacity; equally, models of actions involving beliefs, such as decisions based on beliefs, or changes of beliefs, suffer from a similar inaccuracies. In this paper, a general framework is presented which permits a more realistic modelling both of instantaneous states of belief, and of the operations involving them. This framework is motivated by some of the inadequacies of existing models, which it overcomes, whilst retaining technical rigour in so far as it relies on known, natural logical and mathematical notions. The companion paper (Towards a “sophisticated” model of belief dynamics. Part II) contains an application of this framework to the particular case of belief revision. Presented by Hannes Leitgeb