群体决策过程中的信息取样偏差

一般认为,决策群体的优势是能综合各个成员拥有的不完整信息,形成对所有决策备择方案的无偏差的认识,从而作出最佳选择。但“群体讨论中的有偏差信息取样模型’认为,群体在决策中往往表现出倾向于讨论两种信息：(1)各成员讨论前都拥有的信息;(2)支持成员在讨论前所偏好的信息。该实验通过模拟人员选拔决策形式的实验室实验,对这一模型的假设进行验证。研究结果表明,大多数群体选择了一开始受到大多数成员支持的候选人,而非实际的最佳人选;群体讨论非但未纠正,反而加强了成员对候选人原有的歪曲印象。     

神经细胞粘附分子的唾液酸化作用对小鸡记忆的影响

神经细胞粘附分子的多聚唾液酸化不仅影响发育阶段神经元之间的相互作用,而且在学习记忆过程中也起着重要的作用。实验中的特异切割神经细胞粘附分子和多聚唾液酸之间α－２,８键在内神经氨酸苷酶ｅｎｄｏｎｅｕｒａｍｉｎｉｄａｓｅ ＮＥ定位注射到一日龄小鸡脑ＩＭＨＶ内,此酶明显破坏小鸡对一次性被动回避反应的记忆保持。这种破坏作用与酶的剂量有关,小于４μｇ的内神经氨酸苷酶对小鸡的记忆没有明显的影响。对胚胎第２０天     

社会运行、社会秩序与王朝的治乱盛衰——中国社会思想史研究的新视野

社会运行理论与中国社会思想史研究具有内在的同一关系,为了有效达成"了解过去,解释现在"的宗旨,中国社会思想史研究必须立足当下现实,并回归传统情境.不可以现成的、先验的尺度在资料文献中辨认寻绎社会思想,而应运用社会运行论的知识框架与理论范式,综合考量某个社会精英或学术流派的思想学说和行动主张,逻辑呈现他们如何以社会秩序为中心,从不同角度、不同层面回应社会问题和社会矛盾.进而展开去乱求治的理性思考与实践.     

条件推理的类比转换运用

该文通过2个实验研究旨在探究将演绎推理和类比推理结合在一起的四卡条件推理的类比转换运用的特点。结果表明：1）假设检验的条件推理过程在特定的实验条件下,表现出推理过程转换的心理加工特点;2）改善问题的陈述形式,使之和样例问题一样,能够降低推理过程转换的难度,促进推理过程转换的成绩;3）2个样例归纳的图式促进同形问题的解答,却对推理转换过程有抑制作用。     

北京流动儿童的流动性、社交焦虑及对孤独感的影响

选取1164名流动儿童、525名北京儿童和568名农村儿童为被试,考察流动儿童的流动性、社交焦虑和孤独感的关系。结果表明：（1）流动儿童的城市流动性和住房流动性偏高,而学校流动性相对偏低;（2）在社交焦虑和孤独感方面,流动儿童显著高于北京儿童和农村儿童;住房和学校流动性高的儿童显著高于流动性低的儿童;（3）流动儿童的流动性对其孤独感没有显著的预测作用,而社交焦虑有显著的预测作用,预测系数为30．2％。流动儿童存在较高的社交焦虑和孤独感,社交焦虑能够显著预测孤独感。     

初中生的自尊、受益者特征与亲社会行为的关系

以初中一至三年级学生为对象,采用自尊量表（SES）和帮助行为调查问卷进行测查,以探讨自尊、受助者特征对其亲社会行为的影响。结果表明：（1）在社会道德认知和自我意愿层面上,大多数初中生能表现出积极的亲社会性助人趋向,部分学生的行为决策判定具有不一致性;（2）初中生的自尊程度不影响对他人需要的注意、归因以及行为方式的选择,但与帮助行为的价值取向、行为意愿等认知、情感因素有关,能直接影响自主性的亲社会行为;（3）初中生有关潜在受益者特征的某种认知结果及其相应的情感体验,对帮助型亲社会行为趋向有重要影响;（4）初中生的自尊及其所知觉的潜在量益者特征在亲社会行为趋向中交互作用不显著。     

The temporal dynamics of detached versus positive reappraisal: An ERP study

Detached reappraisal and positive reappraisal are regarded as two distinct types of cognitive reappraisal strategy, and the former is considered more disengaging than the latter. The conceptual framework of emotion regulation choice posits that strategies involving disengagement operate earlier and more efficiently than engagement strategies. Here, we compare for the first time the temporal dynamics of detached and positive reappraisal during the regulation and re-exposure phases thereof by measuring event-related potentials. During the regulation phase, pictures were viewed or regulated using detached or positive reappraisal. During the re-exposure phase, the same pictures were viewed again. Results showed that during regulation, central-parietal late positive potentials (LPPs) were greatly attenuated under both strategy types, with the regulation effect of detached reappraisal occurring earlier than that of positive reappraisal and resulting in a stronger attenuation of LPP amplitudes. Upon re-exposure, detached reappraisal exerted enduring effects on self-reported arousal and the central-parietal LPP, whereas positive reappraisal had an enduring effect only on pleasantness. These findings demonstrate the differential effects of detached and positive reappraisal on valence, arousal, and neural responses, and underline the striking differences in the temporal dynamics of these reappraisal strategies.     

Emotional exhaustion and reduced self-efficacy: The mediating role of deep and surface learning strategies

Motivation and Emotion - Integrating conservation of resources theory and students’ approaches to learning, we consider the relationship between emotional exhaustion and self-efficacy as a...     

The impact of monetary stimuli on object-based attention

Previous research has implied that monetary reward to target location (a reward for spatial properties) can affect object-based attention, but no study has directly investigated the influence of monetary objects (a reward for object properties) on object-based attention. Thus, it is unclear whether and how monetary objects can affect object-based attention. To experimentally investigate this problem, this study adapted the well-established two-rectangle paradigm. In Experiment 1, either two 100-yuan notes or two 1-yuan notes were presented to participants. We found an object-based effect with faster responses to targets at an uncued position on the cued object compared to those at an equidistant position on the uncued object; the effect was similar in 100-yuan and 1-yuan note trials. In Experiment 2, two notes (one 100-yuan and one 1-yuan) were simultaneously presented to participants, and cue location (100-yuan, 1-yuan) was manipulated. We found a greater object-based effect when the cue appeared on the 100-yuan note than on the 1-yuan note. These results suggest that the rewarding property of objects can affect object-based attention by means of altering object salience.     

偏差声音干扰刺激对视觉注意网络系统的影响

结合注意网络测量工具和听视ODDBALL干扰范式,考察偏差声音干扰刺激的出现对注意网络系统不同功能的影响。结果发现,声音刺激序列下,视觉线索唤醒效应均消失; 标准声音刺激下,不存在线索的脱离和转移效应; 偏差声音刺激下,出现线索脱离和转移效应。研究表明,注意网络中的警觉功能具有超通道加工机制,偏差刺激下视觉注意系统中注意定向和线索转移效应的出现表明偏差干扰效应主要由偏差刺激引起的注意脱离和注意转移损耗部分引起。