Extraversion modulates functional connectivity hubs of resting‐state brain networks

Personality dimension extraversion describes individual differences in social behaviour and socio‐emotional functioning. The intrinsic functional connectivity patterns of the brain are reportedly associated with extraversion. However, whether or not extraversion is associated with functional hubs warrants clarification. Functional hubs are involved in the rapid integration of neural processing, and their dysfunction contributes to the development of neuropsychiatric disorders. In this study, we employed the functional connectivity density (FCD) method for the first time to distinguish the energy‐efficient hubs associated with extraversion. The resting‐state functional magnetic resonance imaging data of 71 healthy subjects were used in the analysis. Short‐range FCD was positively correlated with extraversion in the left cuneus, revealing a link between the local functional activity of this region and extraversion in risk‐taking. Long‐range FCD was negatively correlated with extraversion in the right superior frontal gyrus and the inferior frontal gyrus. Seed‐based resting‐state functional connectivity (RSFC) analyses revealed that a decreased long‐range FCD in individuals with high extraversion scores showed a low long‐range functional connectivity pattern between the medial and dorsolateral prefrontal cortex, middle temporal gyrus, and anterior cingulate cortex. This result suggests that decreased RSFC patterns are responsible for self‐esteem, self‐evaluation, and inhibitory behaviour system that account for the modulation and shaping of extraversion. Overall, our results emphasize specific brain hubs, and reveal long‐range functional connections in relation to extraversion, thereby providing a neurobiological basis of extraversion.     

Resistance to Cultural Intervention: Formation of Inhibitory Collective and children’s Self-Defensive Regulation in a Chinese School

A sequel to the previous article “Roots of Excellence: The Releasing Effect of Individual Potentials through Educational Cultural Intervention in a Chinese School” (in press), the present study is on the unexpected reversal phenomena in the process of cultural intervention. The goal of the intervention is to construct the dynamics of Jiti (well-organized collective in Chinese) through creative activities to promote students’ development. In the intervention, the releasing effect (Wu et al. 2016) emerged as well, but the teacher’s concern about worsening discipline and academic performance evoked and reinforced his habitual notions and practices of education, turning the joint activities into a way of strengthening discipline. The energy that had been discharging at the beginning of the intervention was inhibited, so that many more problematic behaviors took shape. The whole class formed an inhibitory atmosphere, within which pupils formed self-defensive regulation strategies. By comparing with the productive collective in which intervention was effective and analyzing this unexpected reversal process, we can not only see pupils’ self-construction status in the inhibitory culture but illuminate the formation of the teacher’s resistance to educational and cultural transformation as well. Resistance is originated from teachers not being able to interpret pupils’ inner developmental needs but instead anxious about the ongoing problems.     

Impulsivity as a precedent factor for problematic Internet use: How can we be sure?

Previous research has suggested that problematic Internet use (PIU) is associated with impulse control disorder. Although researchers have suggested that impulsivity is a risk factor for PIU, the literature lacks longitudinal evidence on the relationship between impulsivity and PIU. We aimed to use a cross‐lagged analytic framework to identify temporal order effects and hypothesised that impulsivity was the precedent factor for PIU. In a panel sample of college students (N = 367), trait impulsivity and PIU were measured in the spring of freshman year and in their junior year. The measures included a self‐developed PIU Scale and the revised Impulsiveness Scale based on Barratt's concept. We found that “non‐planning impulsivity” was not associated with PIU. The “motor impulsivity” subfactor was thus adopted in the cross‐lagged model. The results suggest that motor impulsivity and PIU were stable across time. Motor impulsivity at Time 1 positively predicted PIU at Time 2, but PIU at Time 1 did not predict motor impulsivity at Time 2. A further investigation using gender as a moderator found a gender difference in the temporal relationship. Because motor impulsivity is a risk factor for PIU, potential prevention strategies based on this result are suggested.     

从医疗语言看医学特质

语言是人类的生存方式之一,医学也是人类的生存方式之一.语言与医学的相通和交融,形成了一门新的交叉性、应用性、边缘性学科--医疗语言学.在医疗环境里,透过人类最活跃、最直接、最形象性的语言,可以深切感受到医疗过程中的人文关怀和医学的人文本质.     

新的人身损害赔偿司法解释对医疗行业的影响及医疗行业的对策

新的人身损害赔偿司法解释将于2004年5月1日正式施行.预计将引起医疗纠纷诉讼大量增加,且多以医疗侵权为诉因,医疗机构的赔偿费用也会大幅上升.医疗行业应从减少医疗过失,改善医患关系,完善医疗事故鉴定等方面加以应对.     

心理自我调控理论的研究进展

摘要：Stemberg在整合已有风格理论的基础上,提出了一种全新的风格理论一心理自我调控理论。该理论重新激活了人们对风格的研究兴趣,并引发了一系列的相关实证研究。该文对该理论及其相关研究的进展进行了评述。     

汉字输入法对汉字字词加工的影响研究

用形似判断和同音判断作业就输入法对汉字字词加工的影响作了考察。结果表明,汉字输入法及输入速度对小学生语文学习存在明显的影响．但这种影响作用仪表现在汉字认知加工的较低层面。具体本研究而言,纵横输入法和拼音输入法对汉字认知加工的“形”和“音”均存在影响,但前者侧重于“形”．而后者侧重于“音”。笔者认为其直接原因是学生为提高汉字输入速度所付出的额外练习(相比于输入速度低的学生)所导致的．输入法充当了一种作用载体。     

“巴比伦囚虏”产生影响的客观条件

"巴比伦囚虏"是公元前6世纪的重要事件,影响到整个犹太历史进程。对于这一事件的客观背景,学界缺乏系统的研究和明确的结论。本文结合文本与考古信息,探讨犹大人口变化及被掳人数、被掳人员构成、巴比伦对其政策和留居犹大者情况等因素,探索该事件产生重要影响的客观条件。     

新尝试"假设法脑出血测量"与常用方法的对比

介绍一种CT脑血肿体积测量的新方法-假设法.制作水模进行CT扫描,分别用CT脑出血测量之假设法与多田公式法、CT定量法对其测量,比较结果的准确性.该方法较多田公式法、CT定量法更便捷准确.此假设法,计算简单、快速、准确,比多田公式法、CT定量法更具优势.     

付出-回馈工作压力模型：西方国家十年来研究的回顾与评析

付出&;#8722;回馈工作压力模型(Effort-Reward Imbalance, ERI)以社会交换理论为视角, 从付出、回馈、过度投入三个方面探讨了工作压力的形成机制和作用机理。在对近十几年来有关ERI模型实证研究文献的梳理和分析的基础上, 系统地介绍ERI模型的理论基础、模型的适用性验证、相关变量探索及模型拓展等, 发现目前的ERI模型具有较好的解释力和适用性, 但是模型的中间变量及交互假设有待进一步探索, 付出、回报失衡值的计算方法尚需进一步优化。