Water contaminant levels interact with parenting environment to predict development of depressive symptoms in adolescents

Contaminants in drinking water, such as lead, nitrate, and arsenic, have been linked to negative physical health outcomes. We know less, however, about whether such pollutants also predict mental health problems and, if so, the conditions under which such effects are strongest. In this longitudinal study, we examined whether drinking water contaminants interact with negative family environments (parental psychological control) to predict changes in depressive symptoms in 110 adolescents—a developmental period when symptoms often first emerge. We found that for adolescents in psychologically controlling families, levels of drinking water contaminants prospectively predicted depressive symptoms 2 years later; this effect was not present in adolescents in non‐controlling families. Importantly, these associations were not accounted for by family‐ or community‐level socioeconomic resources, demographic features, or by the adolescents’ stress exposure. These findings highlight the interplay of physical and psychological environments in influencing depressive symptoms in adolescents. A video abstract of this article can be viewed at https://youtu.be/thBV-DwnGcY     

Evaluation of an integrated lighting-warning system on motorists’ yielding at unsignalized crosswalks during nighttime

Drivers’ yielding behavior to pedestrians during nighttime was assessed in seven different conditions of crosswalk lighting: (a) baseline condition with standard road lighting; (b) enhanced LED lighting that increased lighting level from 70 to 120 lx; (c) flashing orange beacons on top of the backlit pedestrian crossing sign; (d) in-curb LED strips on the curbsides of the zebra crossing with steady light emission; (e) in-curb LED strips with flashing light emission; (d) all previous devices activated with in-curb LED strips in steady mode; (e) all previous devices activated with in-curb LED strips in flashing mode. For every condition 100 trials were recorded with a staged pedestrian that initiated a standardized crossing when a vehicle was approaching. The frequency of drivers’ yielding was computed for each condition. A significant increase for yielding compliance was recorded from standard road lighting to enhanced dedicated lighting (19–38.21%), and from enhanced dedicated lighting to the seventh condition with the flashing beacons and the flashing in-curb LED strips activated (38.21–63.56%). The results showed that the integrated lighting-warning system for pedestrian crossings was effective in increasing motorists’ yielding to pedestrians during nighttime.     

Daily relations between social perceptions and physical activity among college women

ObjectivesThere is a need to develop more effective physical activity (PA) promotion programs for college women. Theory and evidence suggest that perceptions of the social environment play a role in college women’s PA, though little is known about how these perceptions are associated with PA at the day level. The goal of this study was to examine relations between changes in college women’s daily social perceptions and objectively assessed PA over seven days.DesignDaily diary method.MethodCollege women (n = 80, M_Age = 20, M_BMI = 23.1 kg/m²) wore Fitbit wristbands and completed daily self-reports of (1) the quantity and perceived intensity of their social interactions (positive/negative), and (2) the occurrence of social comparisons (based on appearance/health/status) for seven days.ResultsMultilevel models showed daily variability in predictors and outcomes (ps < 0.0001), as well as relations between within-person changes in social perceptions and PA. Increases in negative interactions (particularly those with friends) were consistently associated with decreases in daily PA, whereas increases in positive interactions showed limited relations (srs = −0.22-0.34). Days with health comparisons were days with greater PA for women who had stronger overall interest in comparisons, but were days with less PA for women with weaker overall interest (srs = 0.22–0.33). PA did not differ between days with vs. without appearance comparisons.ConclusionsSocial perceptions show meaningful day-to-day variability and relations with college women’s daily PA, and specific associations may be useful for improving tailored interventions for college women.     

Pox Parties for Grannies? Chickenpox,Exogenous Boosting,and Harmful Injustices

Abstract

Some societies tolerate or encourage high levels of chickenpox infection among children to reduce rates of shingles among older adults. This tradeoff is unethical. The varicella zoster virus (VZV) causes both chickenpox and shingles. After people recover from chickenpox, VZV remains in their nerve cells. If their immune systems become unable to suppress the virus, they develop shingles. According to the Exogenous Boosting Hypothesis (EBH), a person’s ability to keep VZV suppressed can be ‘boosted’ through exposure to active chickenpox infections. We argue that even if this hypothesis were true, immunization policies that discourage routine childhood varicella vaccination in order to prevent shingles for other people are unethical. Such policies harm children and treat them as mere means for the benefit of others, and are inconsistent with how parents should treat their children and physicians should treat their patients. These policies also seem incompatible with institutional transparency.     

Ethically Allocating COVID-19 Drugs Via Pre-approval Access and Emergency Use Authorization

Abstract

Allocating access to unapproved COVID-19 drugs available via Pre-Approval Access pathways or Emergency Use Authorization raises unique challenges at the intersection of clinical care and research. In conditions of scarcity, prioritization approaches should minimize harm, maximize benefit, and promote fairness. To promote continued data collection, patients seeking access to unproven COVID-19 drugs should receive lower priority for allocation when they decline to participate in clinical trials, either of the requested drug or other investigational products, offering a comparable balance of risks and benefits; special attention should be paid to concerns of voluntariness and distrust. In addition, institutional treatment protocols that can contribute more robust real world data should be preferred to single patient requests for access, with priority for inclusion based on traditional clinical allocation criteria relying on available evidence. Fairness demands distribution of these protocols across a diverse range of sites, particularly those serving marginalized populations, among other protections.     

Counselling and psychotherapy post‐COVID‐19

We consider how the prolonged, complex and uncertain aftermath of the COVID‐19 crisis will present challenges and opportunities for counselling and psychotherapy. Increased mental strain on populations, individuals and professionals is likely to be compounded by further constraints in therapeutic resources. Nevertheless, emerging needs and priorities will offer ground for systems thinking in linking the application of a range of therapeutic frameworks, theories to address global challenges, integration of counselling and psychotherapy into new sectors, service models for the most vulnerable, use of digital approaches, support mechanisms for professionals and interdisciplinary research.     

心理健康素养：内涵、测量与新概念框架

本文概述了国内外心理健康素养概念的研究及其测量的演进。在此基础上尝试提出国民心理健康素养的新概念框架。新概念将心理健康素养定义为个体在促进自身及他人心理健康,应对自身及他人心理疾病方面所养成的知识、态度和行为习惯。新概念框架包含“心理疾病应对——心理健康促进”和“自我——他人”两个维度;在内容上包含知识、态度和行为习惯三个方面。文章还探讨了未来的研究方向。     

大学生恋爱状态与外表拒绝敏感性：外表吸引力自我觉知的中介作用

主要探讨大学生恋爱状态（恋爱中或单身）、个体外表吸引力自我觉知与外表拒绝敏感性之间的关系。采用恋爱状态问卷、外表拒绝敏感性量表、拒绝敏感度量表、基于外表的社会比较以及吸引力自评等测量工具,以班级为单位向随机选取的北京、四川以及安徽等地多所高校大学生进行施测,有效被试549人。结果发现：（1）大学生恋爱状态、外表吸引力自我觉知和外表拒绝敏感性之间相关显著;（2）大学生恋爱状态能够显著正向预测外表吸引力自我觉知,也能显著负向预测外表拒绝敏感性;（3）外表吸引力自我觉知在恋爱状态与外表拒绝敏感性之间具有显著的完全中介作用（间接效应值为0.47）,恋爱状态通过提升个体主观评估的外表吸引力,从而降低外表拒绝敏感性。     

祖辈共同养育模式下幼儿母子依恋对问题行为的影响：祖孙依恋的中介作用

采用幼儿依恋量表和儿童行为量表（Child Behavior Checklist, CBCL）测量265名祖辈共同养育幼儿的母子依恋、祖孙依恋和问题行为的情况,考察祖辈共同养育幼儿的祖孙依恋在母子依恋与问题行为的中介作用。结果发现：（1）祖辈共同养育幼儿的母子依恋与祖孙依恋呈显著正相关,幼儿的母子依恋与内化问题行为、外化问题行为呈显著负相关,幼儿的祖孙依恋与内化问题行为、外化问题行为呈显著负相关;（2）祖辈共同养育幼儿的祖孙依恋完全中介母子依恋对内化问题行为、外化问题行为的影响。