Daily implementation of health-protective behaviors and family life during the early months of the COVID-19 pandemic

The coronavirus disease (COVID-19) pandemic has necessitated the use of health-protective behaviors (HPB), such as social distancing, staying at home, frequent handwashing, and wearing facemasks to mitigate the transmission of disease. An investigation of interpersonal costs associated with the use of HPB can help inform strategies to promote their sustained implementation. This study examined the daily associations between the implementation of HPB and family functioning and assessed moderation by coparenting quality, economic strain, and the number of days that state-level stay-at-home policies had been in effect, during the early days of the pandemic. Mothers and fathers from 155 families with children who were 9 years old, on average, completed daily reports of HPB, parental stress, and family relationship quality over eight consecutive days in April or May of 2020. Hierarchal linear models showed that HPB was associated with increased levels of parental stress and interparental conflict. Negative coparenting relations exacerbated the next-day association between HPB and interparental conflict. HPB was also associated with increased levels of parent–child and interparental closeness, but these linkages dissipated for families who had spent more days under state-level stay-at-home policies. Although crucial for public health, the implementation of HPB may have detrimental short-term effects on daily family life. Family support and interventions are necessary to minimize the psychosocial burden of these important public health measures and increase their sustained adherence.     

Foster Care Children’s Kinship Involvement and Behavioral Risks: A Longitudinal Study

Researchers have found that individual strengths (e.g., coping, optimism) are protective against behavioral risk (e.g., delinquency, suicide) among traumatized youth in foster care. However, less is known about kinship involvement (i.e., extended family support) as a social strength that can also attenuate the effects of childhood trauma, thereby reducing behavioral risk. Addressing the lack of research on kinship involvement, the present longitudinal study investigated individual strengths (IS) and kinship involvement (KI) as moderators between trauma experiences (TE) and risk behaviors (RB) among 336 youth, ages 6 to 13, who entered the Illinois child welfare system between 2011 and 2014. Controlling for Time 1 (T1) RB, T1 IS, age, gender, and ethnicity, we utilized a three-level Hierarchical Generalized Linear Model to analyze TE?×?KI and TE?×?IS at T2. The study found that KI was negatively associated with RB (β16?=??.08, Event Rate Ratio [ERR]?=?0.92, p?=?<.01), suggesting that youth with more KI had relatively lower RB trajectories. Further, the TE?×?IS interaction was significant in the model (β21?=??.05, ERR?=?0.95, p?<?.01); TE was positively associated with RB at lower levels of IS but not higher levels of IS. These results highlight the importance of assessing children’s kinship networks and individual strengths early in foster care.     

背景线索和认知风格对真实场景中目标搜索影响的眼动研究

采用眼动记录方法,研究背景线索和认知风格对真实场景中目标搜索三阶段的影响。实验以真实的室内场景图片为材料,通过重复呈现整体背景一致或局部背景一致的场景,考察不同场认知风格被试在整体背景线索和局部背景线索条件下在目标搜索各阶段的眼动特征。结果表明,整体背景线索和局部背景线索对目标搜索的启动和确认阶段没有影响,对扫描阶段有促进作用,且整体背景线索效应大于局部背景线索效应,主要体现在能更有效地选择注视区域,在单次注视中获得更多的信息,更迅速地拒绝当前注视区域和计划下一次眼跳;认知风格不影响个体在真实场景目标搜索过程中对背景线索的利用。     

事件率对专家与新手放射科医生医学图像视觉搜索的影响:来自眼动的证据

探讨低事件率对医学图像视觉搜索漏报的影响,用SMI250眼动仪记录放射科专家与新手检测胸部X光片的过程。结果发现:(1)专家和新手在低事件率(10%)下的漏报率多于高事件率(50%),但专家在高低事件率的漏报率的差值小于新手。(2)专家和新手在低事件率下的注视次数少于高事件率,眼跳幅度、扫描错误比例大于高事件率。结论认为:专家与新手进行医学图像视觉搜索时出现低事件率效应,低事件率效应主要是由于扫描错误引起的。     

大学生神经质人格、手机网络服务偏好与手机网络过度使用的关系*

采用问卷法,以1488名大学生为被试,探讨了大学生神经质人格、手机网络服务使用偏好与手机网络过度使用行为的关系。结果表明：（1）大学生对手机网络服务的偏好依次是：信息服务、娱乐服务、社交服务和交易服务;（2）大学生神经质人格与手机网络服务偏好和手机网络过度使用有显著正相关,信息服务和娱乐服务与手机网络过度使用有显著正相关;（3）大学生神经质人格、信息服务和娱乐服务对手机网络过度使用具有直接正向预测作用;（4）神经质人格通过信息服务和娱乐服务间接影响大学生的手机网络过度使用,信息服务和娱乐服务在二者间起到部分中介作用。可以通过塑造大学生的积极人格,培养积极大学生的新媒体素养,有效抑制大学生对手机网络的过度使用行为。     

小学五年级学生英语阅读知觉广度的眼动研究

使用Eyelink2000型眼动仪,采用经典的呈现随眼动变化技术,对24名被试在不同窗口条件下英文阅读的眼动指标进行记录和分析,以考察小学五年级学生英语阅读的知觉广度。研究结果表明:小学五年级学生英语阅读的知觉广度的右侧范围是注视点右侧5-8个字符空间。     

BDNF: a key regulator for protein synthesis-dependent LTP and long-term memory?

It is generally believed that late-phase long-term potentiation (L-LTP) and long-term memory (LTM) require new protein synthesis. Although the full complement of proteins mediating the long-lasting changes in synaptic efficacy have yet to be identified, several lines of evidence point to a crucial role for activity-induced brain-derived neurotrophic factor (BDNF) expression in generating sustained structural and functional changes at hippocampal synapses thought to underlie some forms of LTM. In particular, BDNF is sufficient to induce the transformation of early to late-phase LTP in the presence of protein synthesis inhibitors, and inhibition of BDNF signaling impairs LTM. Despite solid evidence for a critical role of BDNF in L-LTP and LTM, many issues are not resolved. Given that BDNF needs to be processed in Golgi outposts localized at the branch point of one or few dendrites, a conceptually challenging problem is how locally synthesized BDNF in dendrites could ensure synapse-specific modulation of L-LTP. An interesting alternative is that BDNF-TrkB signaling is involved in synaptic tagging, a prominent hypothesis that explains how soma-derived protein could selectively modulate the tetanized (tagged) synapse. Finally, specific roles of BDNF in the acquisition, retention or extinction of LTM remain to be established.     

《周易》神韵的文化透视——《坤》“龙战于野”的再认识

“战”之词义,主要有两解：一曰交战,一曰交媾。本文认为“战”在哲学层面上体现为斗争与相合的统一,相合是其本质,“交战”义则违背了“生生之谓易”之至理;征之帛书《周易》和《焦氏易林》．认为“战”确有“交媾”义,怛“交媾”未能传达《易》“战”形神兼备之神韵：“战”既勃发着流宕不羁的野性,又凸现至情至睦之质;既充满情感,又饱含形象性,它是远古时代情蕴的写照。对于这样一个浓缩了《周易》精神的词汇,我们应该从哲学和情感两个层面上把握它。而不应该简单化、机械化地观照它。     

认知灵活性和顿悟表征转换：练习类型的影响

以停车场问题为实验材料,以42名大学生为被试,探讨认知灵活性高和低的被试在不同练习类型下顿悟问题表征转换的差异。结果表明：1）不同的练习类型对顿悟表征转换有影响,被试在难度逐渐增加的练习类型下比在简单的练习类型下顿悟产生得更快;2）顿悟表征转换的速度因认知灵活性的不同有差异,在简单的练习类型下,认知灵活性高的被试比认知灵活性低的被试顿悟产生得更早,在难度逐渐增加的练习类型下两者无差异;3）认知灵活性高的被试比认知灵活性低的被试顿悟问题解决更快。     

A Mencian Version of Limited Democracy

The compatibility between Western democracy and other cultures, and the desirability of democracy, are two important problems in democratic theory. Following an insight from John Rawls’s later philosophy, and using some key passages in Mencius, I will show the compatibility between a ‘thin’ version of liberal democracy and Confucianism. Moreover, elaborating on Mencius’s ideas of the responsibility of government for the physical and moral well-being of the people, the respectability of the government and the ruling elite, and the competence-based limited political participation, I shall explore the Mencian criticisms of some ‘thick’ democratic ideas. Through the discussion in this paper, I hope to show the relevance of Confucianism to contemporary political philosophy and society.