The Effects of Childhood ADHD Symptoms on Early-onset Substance Use: A Swedish Twin Study

Research has documented that children and adolescents with attention-deficit/hyperactivity disorder (ADHD) are at increased risk of substance use problems. Few studies, however, have focused on early-onset substance use. This study therefore investigated how the two symptom dimensions of ADHD (hyperactivity/impulsivity and inattention) are associated with early-onset substance use, the role of persistent ADHD for the association, and to what extent the association is influenced by genetic and environmental factors. Twins (1,480 pairs) in the Swedish Twin Study of Child and Adolescent Development were followed from childhood to adolescence. ADHD symptoms were measured at age 8–9 and age 13–14 via parent-report, whereas substance use was assessed at age 13–14 via self-report. Results revealed that hyperactive/impulsive symptoms predicted early-onset “sometimes” tobacco use (adjusted odds ratios, 1.12, for one symptom count), controlling for inattentive symptoms and conduct problem behaviors. There is no independent effect of inattentive symptoms on early-onset substance use. Children with persistent hyperactivity/impulsivity (defined as scoring above the 75th percentile at both time points) had a pronounced risk of both early-onset tobacco and alcohol use (adjusted odds ratios from 1.86 to 3.35, compared to the reference group). The associations between hyperactivity/impulsivity and early-onset substance use were primarily influenced by genetic factors. Our results indicated that hyperactivity/impulsivity, but not inattention, is an important early predictor for early-onset substance use, and a shared genetic susceptibility is suggested to explain this association.     

Working memory components as predictors of children's mathematical word problem solving

This study determined the working memory (WM) components (executive, phonological loop, and visual–spatial sketchpad) that best predicted mathematical word problem-solving accuracy of elementary school children in Grades 2, 3, and 4 (N = 310). A battery of tests was administered to assess problem-solving accuracy, problem-solving processes, WM, reading, and math calculation. Structural equation modeling analyses indicated that (a) all three WM components significantly predicted problem-solving accuracy, (b) reading skills and calculation proficiency mediated the predictive effects of the central executive system and the phonological loop on solution accuracy, and (c) academic mediators failed to moderate the relationship between the visual–spatial sketchpad and solution accuracy. The results support the notion that all components of WM play a major role in predicting problem-solving accuracy, but basic skills acquired in specific academic domains (reading and math) can compensate for some of the influence of WM on children’s mathematical word problem solving.     

负性情绪在冲突适应中的作用机制：分离与整合视角

负性情绪如何影响冲突适应一直以来受到领域内研究者们的广泛关注。根据负性情绪产生的源头(冲突外部操纵vs.冲突内部固有), 对于该问题的论述可以分别从认知与情绪的分离与整合视角展开。分离视角下, 操纵于冲突之外的负性情绪(外部负性情绪)独立于冲突加工过程, 通过情绪加工系统或个体自身的动机/唤醒水平影响冲突适应。近些年来的研究发现冲突加工自动产生负性情绪(固有负性情绪), 寓示着认知冲突与负性情绪间的内在关联, 固有负性情绪因此可被视作诱发冲突适应的另一个有效来源。整合视角下, 操纵于冲突内部的(固有)负性情绪高度整合于冲突加工过程, 其功能与冲突信息类似, 通过内在地促进目标导向行为直接诱发冲突适应。对这一主题的论述加深了我们对负性情绪如何作用于冲突适应过程的理解, 也为探索认知与情绪系统的整合过程及作用机制提供了一个全新的视角, 在此基础上, 我们也提出一些未来可行的研究方向。     

老年人群的韵律感知

老龄化导致听觉系统、认知功能有所衰退。老年人群的言语理解能力减弱, 韵律信息解析存在困难。老年人对重音、语调、语速等语言韵律感知能力退化, 对情感韵律的加工也出现问题, 特别是消极情绪韵律加工减退较快。老年疾病进一步加深韵律加工难度, 韵律感知呈现出与特定疾病的相关性。未来研究需考察不同语言背景老年人群的韵律感知表现与机制、复杂交流环境的影响、韵律感知障碍对老年疾病的预测、韵律感知的早期干预与复健等问题。     

Correction to: Trends of Positive Youth Development Publications (1995–2020): A Scientometric Review

Applied Research in Quality of Life - A Correction to this paper has been published: https://doi.org/10.1007/s11482-020-09905-3     

难治性丙型肝炎研究新进展

随着聚乙二醇化干扰素(IFN)的普及应用和慢性丙型肝炎规范化治疗的开展,其治愈率不断提高.但疗效不佳的慢性丙型肝炎患者不断积累,难治性慢性丙型肝炎患者成为临床医生必须面对的挑战.难治性丙型肝炎患者应当分为两类,第一类为“难治疗”性慢性丙型肝炎患者,该类患者由于宿主条件限制,不能耐受IFN联合利巴韦林(RBV)的标准治疗,如儿童和老年人、慢性肾功能衰竭患者等.第二类为“难治愈”性慢性丙型肝炎患者,该类患者可以耐受标准治疗方案,但按照应答指导的治疗原则(RGT)治疗后,效果仍然不佳或复发.本文就近年关于难治性丙型肝炎的研究进展,从难治性丙型肝炎的定义、机制、治疗诸方面作一综述.     

根据血压昼夜节律选择服药时间控制血压晨峰

根据血压昼夜节律,观察给药时间对血压晨峰的影响。256例原发性高血压患者,经24h动态血压监测分为超杓型（n＝49）、杓型（n＝127）和非杓型（n＝80）3组;各组再分为清晨服药组和晚上服药组。用药6周,比较用药前后血压昼夜节律及血压晨峰的变化,发现在改变血压昼夜节律及降低血压晨峰方面,超杓型组清晨服药优于晚上服药,非杓型组晚上服药优于清晨服药;杓型组清晨服药与晚上服药均能降低晨峰值,提示根据个体血压昼夜节律选择服药时间能更好地控制血压晨峰。     

“己之所欲”还是“成人之美”？解释水平视角下个体赠送-接受礼物的偏好不对称性

解释水平理论被广泛应用于消费研究领域。本研究以解释水平理论为理论基础,采用情境问卷调查方法,通过5个实验探讨个体赠送与接受礼物时是否存在性别和角色偏好的不对称性。结果发现,一般情境下,受性别因素影响,男生偏好赠送和接受工具性礼物,女生偏好赠送和接受表达性礼物。但随着心理距离（社会距离和空间距离）的拉近,个体的解释水平降低,更关心他人的喜好和需求,赠送者会更基于接收者的偏好进行礼物选择。     

情绪效价与面孔类型对幼儿无意视盲的影响

幼儿对不同的情绪面孔图片存在不同的注意偏向,考察情绪效价与面孔类型对幼儿无意视盲的影响,可以帮助我们进一步认识幼儿对情绪面孔的注意偏向。本研究采用静态无意视盲的实验范式,通过2（面孔类型：符号化卡通、真人）×2（情绪效价：积极、消极）被试间完全随机设计,考察了111名幼儿（62.5±3.6个月,男生60名）在无意注意条件下对不同情绪效价和不同类型面孔的觉察情况。结果表明：（1）幼儿对积极情绪面孔的觉察率显著高于消极情绪面孔;（2）符号化卡通面孔与真人面孔的整体觉察率不存在显著差异;（3）积极情绪面孔中符号化卡通面孔的觉察率高于真人面孔。综上,情绪效价对无意视盲的影响会基于面孔类型的不同而不同,幼儿对卡通积极情绪面孔有更显著的注意偏向。     

气候正义研究的三个焦点问题

气候正义虽然已经成为国际气候谈判的主导原则之一,但是,国际气候协议的达成与实施仍然举步维艰。人们对气候正义的实质、气候正义的维度、气候正义诸原则的具体内容、气候正义诸原则的优先性及其政策含义等方面的认识与理解存在分歧是导致这一困境的重要原因之一。促进包括气候正义在内的气候伦理与气候价值观方面的沟通与融合,培育全球气候治理的公共政治文化与人类共同价值,是走出全球气候治理的“国际囚徒困境”的长远之道。首先从宏观上梳理和评估全球气候正义研究的现状,然后依次探讨和剖析全球气候正义研究的三个焦点问题(气候正义的内涵与外延、气候正义的基本原则、全球气候变暖的历史责任),可以为全球气候治理积累必要的道德资源,促进并深化全球气候伦理的研究与交流,探求气候正义研究的新的突破点与可能的生长点。