3~5岁幼儿权力概念多重隐喻的认知发展

为考察3~5岁幼儿“权力”概念的大小、垂直空间和重量多重隐喻的认知发展进程, 研究采用了将权力人物和无权力人物图片放置大圆形或小圆形、垂直空间的上方框或下方框和不平衡跷跷板重端或轻端的图片迫选任务。通过3个实验及综合分析发现：3岁幼儿尚不具备权力隐喻理解能力; 4岁是幼儿权力隐喻理解能力的重要发展时期, 具备正极权力概念的隐喻理解能力, 建立起有权力为“大、高、重”的多重隐喻联结; 5岁幼儿的权力隐喻理解能力进一步增强, 已具备较完整的多重隐喻理解能力, 建立起有权力为“大、高、重”、无权力为“小、下、轻”的多重隐喻联结。3~5岁幼儿“权力”概念的大小、垂直空间和重量多重隐喻理解能力同步发展, 不受隐喻靶域习得时间早晚的影响。系列研究表明, 学龄前幼儿的权力隐喻理解能力发展趋势符合隐喻一致性理论, 隐喻表征的产生并非“有或无”的模式, 而是“渐进”呈现发展。     

The Post-Movement Beta Rebound and Motor-Related Mu Suppression in Children

Abstract

Age-related EEG activity change is a prominent feature that reflects the functional development of the brain. The current study investigated the beta and mu rhythms of 16 children (7.7 ± 1.5 years, 5 to 9.6 years) and 13 adults when a self-determining arm motion was performed. The results indicated that mu power was decreased during movement and returned to baseline level after the movement for both children and adults. However, although a decrease in beta power was observed for both children and adults during movement, the post-movement beta power rebound (PMBR) was observed in adults but not in children. These results suggest that motor-related mu suppression develops early in children; PMBR develops later and may be associated with a more prolonged motor development process.     

Cleaning versus replacement in power plant air preheaters: a comparison between deterministic and stochastic goal programming models

Power plants lose efficiency when the air preheater elements are not replaced or cleaned as they deteriorate. Replacing is more expensive than cleaning but more secure to preserve power and lifetime. How many baskets should be then replaced and how many cleaned to achieve ‘satisficing’ goals of cost, power and lifetime? We design deterministic/stochastic goal programming approaches to this problem and develop a decision case for usual preheaters. Some discrepancies in results between both approaches appear, the deterministic model advising to replace less baskets than the stochastic, which is plausible due to the risk variable. Copyright © 2005 John Wiley & Sons, Ltd.     

Imagery-induced negative affect,social touch and frontal EEG power band activity

Social touch seems to modulate emotions, but its brain correlates are poorly understood. Here, we investigated if frontal power band activity in the electroencephalogram (EEG) during aversive mental imagery is modulated by social touch from one’s romantic partner and a stranger. We observed the highest theta and beta power when imaging alone, next so when being touched by a stranger, with lowest theta and beta activity during holding hands with the loved one. Delta power was higher when being alone than with a stranger or a partner, with no difference between the two. Gamma power was highest during the stranger condition and lower both when being alone and with the partner, while alpha power did not change as a function of social touch. Theta power displayed a positive correlation with electrodermal activity supporting its relation to emotional arousal. Attachment style modulated the effect of touch on the EEG as only secure but not insecure partner bonding was associated with theta power reductions. Because theta power was sensitive to the experimental perturbations, mapped onto peripheral physiological arousal and reflected partner attachment style we suggest that frontal theta power might serve as an EEG derived bio-marker for social touch in emotionally significant dyads.     

如何激发员工绿色行为?绿色变革型领导与绿色人力资源管理实践的作用

鉴于当今环境问题的严峻性, 如何激发绿色行为逐渐成为社会各界关注的一个话题。本研究从绿色变革型领导和绿色人力资源管理实践两大绿色管理利器入手, 探究两者能否共同激发员工绿色行为。基于以往文献, 本研究提出两组竞争性假设：基于线索一致理论, 认为绿色变革型领导与绿色人力资源管理实践正向交互影响员工绿色行为; 此外, 基于领导替代理论, 认为绿色变革型领导与绿色人力资源管理实践负向交互影响员工绿色行为。研究1a (N = 91)和研究1b (N = 220)采用实验法, 发现绿色变革型领导与绿色人力资源管理实践发挥协同作用, 正向交互预测员工绿色行为。研究2采用问卷法, 搜集了三时点上下级配对数据(N = 173), 不仅再次支持了研究1的发现, 还进一步揭示环保目标清晰度的中介作用。以上结果支持了线索一致性理论在绿色管理领域的适用性, 并启示企业在绿色管理过程中可以软硬兼施, 联合运用绿色变革型领导和绿色人力资源管理实践两大策略。     

加工流畅性对学习判断字体大小效应的影响

以自定步调学习时间和习得试验次数为加工流畅性指标,通过操纵不同字号的词对考察了加工流畅性对学习判断字体大小效应的影响。结果发现：（1）字体大小影响学习判断,但不影响回忆成绩;（2）不同字体大小的词对在加工流畅性（学习时间和学习次数）上存在差异,仅自定步调学习时间测量的加工流畅性对学习判断字体大小效应有贡献。这些结果说明学习判断的字体大小效应是一种元认知错觉现象,部分支持了加工流畅性假说。     

Assessing changes in brain electrical activity and functional connectivity while overtaking a vehicle

ABSTRACT

Driving is a daily requirement and an indispensable activity for many people. However, still little is known about how driving is supported by the brain. We used electroencephalography to study the changes in brain activity and its functional connectivity in a simulated driving task. We focused on overtaking and studied this activity in three phases: before overtake, during overtake, and after overtake. Our results showed that mu power in motor and sensorimotor areas decreased during overtake and again increased after overtake. On the other hand, beta oscillations in frontal areas were at their highest level in the “before overtake” phase. It can be interpreted that the “before overtake” was the most attention-demanding phase. In addition, we found that the connectivity between right and left prefrontal regions and right and left occipital regions in alpha (and mu) band power was significantly stronger in the “during overtake” compared to the other two conditions.     

书面语言的提前学习对幼儿脑电α波的影响

本研究以脑电α波为分析指标探讨提前学习书面语言对幼儿大脑皮层相应区域发育的促进作用。结果表明对学龄前幼儿提前进行书面语言学习可以使幼儿脑电α波超前发展，本结果提示提前进行书面语言学习对幼儿大脑皮层相应脑区的发育与成熟有促进作用。     

浅析医生处方权的属性与规范——基于医疗卫生资源微观配置视角的分析

从医疗卫生资源微观配置视角分析,处方权是一种资源配置权力,属于公权力。主要分析了医生处方权的权力来源、医生处方权的职权性质和医生处方权的源权力属性。鉴于此,建立处方权独立行使的保障制度与处方权规范行使的程序控制制度可以有效规范医生处方权的行使。     

Constructing and contesting threat: Representations of white British Muslims across British national and Muslim newspapers

White British Muslims pose a challenge to racialised representations of British Muslims as non‐white, foreign and Other. By drawing on tools from Critical Discourse Analysis to develop Social Representations Theory on a micro‐analytic level, and making connections with other relevant social psychological theories on intergroup relations, this article examines the constructions of white British Muslims as a threat in six national and two Muslim British newspapers. It looks at how discourses are used to create, perpetuate and challenge the ‘hegemonisation’ of social representations in majority and minority press. The findings show that white British Muslims are portrayed as a threat not just despite of, but because of, their position as part of the ‘white British’ ingroup. Consequently, the threat they pose often leads to their Muslimness being emphasised. This was, at times, contested, however, either through direct challenges, or by making the threat ambivalent by drawing on their whiteness.