Environmental enrichment improves behavioral performance and auditory spatial representation of primary auditory cortical neurons in rat

Environmental enrichment (EE) has an important role in brain plasticity. Early research has shown that EE increases the response strength of neurons in the auditory cortex, but it remains unknown whether EE can influence the process of spatial localization in the auditory system. In this study, we raised rats in enriched and standard conditions from postnatal day 10 to day 56. By testing behavioral tasks via auditory cues, we have shown that EE improved the number of correct scores, but decreased the reaction time and azimuth deviation in behavioral performance of sound-azimuth discrimination. By in vivo extracellular recording, we have shown that EE enhanced the directional sensitivity of neurons in the primary auditory cortex. For example, EE rats had a smaller spatial receptive field, sharper frequency tuning curve and directional selective curve of auditory neurons compared with normal rats. Our findings indicate that early exposure to EE increases directional sensitivity. These results provide an insight into developmental plasticity in the auditory system.     

工作绩效的结构及其与胜任特征的关系

本研究旨在验证党政领导干部对下级工作绩效评定的结构,并探讨其与胜任特征之间的关系。两个省市的450名党政领导干部完成了对自己下级的工作绩效和胜任特征的评定。结果表明,评定下级干部工作绩效的两因素结构,即任务指向和个人素质,得到了验证;分别以工作绩效的两个二阶因素为因变量,以胜任特征的七个维度为预测变量进行逐步回归分析,胜任特征可以解释工作绩效的“才”和“德”成分54．5％和55．3％的变异。胜任特征和工作绩效中“德”和“才”的成分之间存在复杂的关系,既可以相互促进,也可以交互抑制。文中还对这一结果的含义及本土化研究的意义进行了深入讨论。     

多重模型疗法简介

多重模型疗法(Multimodal Therapy)是由美国临床心理学家阿诺德     

新型冠状病毒疫情影响下大学生对医生角色行为的道德判断研究

2020年初,在我国发生了新型冠状病毒引发的重大疫情,医生是战“疫”的重要角色,也是最受关注的职业群体。这次疫情是否改变了以往因医患矛盾而引发的大众对医生的道德判断?本研究采用徐科朋(2019)编制的道德判断材料,以非医护专业大学生为被试,用实验法分别比较了疫情前和疫情中大学生对医生道德和不道德行为的判断。结果发现:(1)疫情前大学生对医生在公平行为上的赞扬程度显著高于疫情中,疫情中大学生对医生在关爱、忠诚、权威行为上,赞扬程度显著高于疫情前。(2)在整体不道德行为上,疫情中大学生均对医生的评价比对照组严格。疫情前大学生对医生在背叛、颠覆行为上的评价要比对照组宽松。疫情中大学生对医生在伤害、背叛、堕落行为上的评价要比对照组严格。(3)疫情中,大学生对医生在整体不道德行为和各维度不道德行为上的评价较疫情前均更加严格。     

社交媒体信任对重大突发公共卫生事件中公众网络谣言自治行为的影响

从社会心理学视角、以社交媒体信任为切入点,基于新冠肺炎疫情,考察公众在重大突发公共卫生事件中网络谣言自治行为的心理机制。采用问卷方法对963名成年居民进行调查。结果表明:(1)公众对官方社交媒体的信任既能直接促进公众的辟谣行为,也能通过增强公众对战胜疫情的信心产生间接影响;(2)公众对官方社交媒体的信任影响公众对自媒体的信任,但自媒体信任不能独立于官媒信任影响辟谣行为。因此,我国社交媒体存在着两个舆论场且官方舆论占主导地位,及时、有效的官方报道不仅能提高公众对战胜疫情的信心,也能促进公众网络谣言自治,进而实现网络谣言治理主体的多元化。     

基于空间计量的我国省级环保投资特征分析

利用空间计量工具对1998-2006年我国省级三同时环保投资的实证分析发现:我国省级三同时环保投资存在显著的空间相关性与聚集现象;财政分权改革在促进地方政府为增长而竞争的同时,也加剧了地方政府环保行为的扭曲.因此,中央政府应当健全环保投资的全过程督察与绩效评估制度,培育重视环境保护的标杆性地方政府.     

特质感恩与状态感恩对初中生合作水平的影响

为探究感恩对初中生合作水平的影响,本研究采用追踪调查与实验相结合的方法,通过两个研究分别探究了特质感恩与内在的合作倾向,状态感恩与外在的合作行为之间的关系。结果发现：（1）初中女生的特质感恩、人物取向感恩显著高于男生;初一下的合作倾向显著低于初一上、初二上时期;（2）初中生的特质感恩水平能显著正向预测合作倾向,状态感恩的唤起会增加公共物品困境中的合作行为。     

Are high levels of religiosity inconsistent with a high valuation of science? Evidence from the United States,China and Iran

We asked whether high levels of religiosity are inconsistent with a high valuation of science. We explored this possibility in three countries that diverge markedly in the relation between the state and religion. Parents in the United States (n = 126), China (n = 234) and Iran (n = 77) completed a survey about their personal and parental stance towards science. The relation between religiosity and the valuation of science varied sharply by country. In the U.S. sample, greater religiosity was associated with a lower valuation of science. A similar but weaker negative relation was found in the Chinese sample. Parents in the Iranian sample, by contrast, valued science highly, despite high levels of religiosity. Given the small size of our United States and Iranian samples, and the non-probabilistic nature of our samples in general, we caution readers not to generalise our findings beyond the current samples. Despite this caveat, these findings qualify the assumption that religiosity is inconsistent with the valuation of science and highlight the role of sociocultural context in shaping adults' perception of the relation between religion and science.     

Insights into computational thinking from think-aloud interviews: A systematic review

This systematic review examines 35 empirical studies featuring the use of think-aloud interviews in computational thinking (CT) research. Findings show that think-aloud interviews (1) are typically conducted in Computer Science classrooms and with K-12 students; (2) are usually combined with other exploratory CT assessment tools; (3) have the potential to benefit learners with special needs and identify the competency gaps through involving diverse participants; (4) are conducted in the absence of cognitive models and standard procedures; and (5) display insufficient definitional and methodological rigor. Theoretically, this review presents a systematic assessment about the application of think-aloud interviews in CT studies and identifies the limitations in existing CT-related think-aloud studies. Practically, this review serves as a reference for studying the cognitive processes during CT problem-solving and provides suggestions for CT researchers who intend to incorporate think-aloud interviews in their studies.