重要他人情境对青少年意图判断诺布效应的影响*

设置了母亲、朋友、老师三类重要他人,副作用结果为积极和消极两种性质的实验故事共六个,选取311名中学生阅读故事并回答问题,以此探讨青少年诺布效应的特点及其与心理状态理解的关系。结果表明：（1）青少年在对不同重要他人的积极副作用情境进行意图判断时,表现出典型的诺布效应,但在对不同重要他人的消极副作用情境进行意图判断时,没有表现出诺布效应;（2）母亲、朋友和老师这三类重要他人对于青少年意图判断的影响没有显著差异;（3）初中生和高中生、男生和女生的意图判断没有显著差异;（4）青少年认为,由消极副作用引起的被行为者的情绪以负性情绪为主,而行为者的情绪则以正性情绪为主。本研究的结论是：青少年在进行意图判断时仅出现了不完全的诺布效应。     

Is the Association of ADHD with Socio-Economic Disadvantage Explained by Child Comorbid Externalizing Problems or Parent ADHD?

It has been unclear whether an associations of child ADHD with socio-economic disadvantage (SES) could be accounted for by (a) parental ADHD explaining both low SES and child ADHD, and/or (b) the joint overlap of ODD or CD with low SES and ADHD. Study 1 used a community-recruited case-control sample with detailed evaluation of SES indicators, child ADHD, child externalizing, and parent ADHD symptoms (n = 931 children, 521 ADHD, 577 boys, 354 girls) in a path modeling analysis with latent variables. Study 2 evaluated ADHD and externalizing behavior in a regression model using a poverty index for SES, in 70,927 children (48.2% female) aged 5–17 years from the US 2011–2012 National Survey of Children’s Health (NSCH). In Study 1, lower SES was related to the ADHD latent variable, β = ?.18, p < .001; 95%CI [?.25,-.12]. This effect held when parent ADHD and child ODD and CD were in the model, β = ?.11, p < .01, 95% CI [?.09,-.03], equivalent to OR = 1.50, 95% CI[1.12–2.04]). In Study 2, these results replicated. Adjusting only for age and sex, children from families who were below 200% of the federal poverty line were more likely to have moderate or severe ADHD than no ADHD, versus children above that line, OR = 2.13, 95% CI[1.79,2.54], p < .001. The effect held after adjusting for disruptive/externalizing problems, OR = 1.61, p < .01, 95%CI [1.32,1.96]. The effect size for comparable models was similar across both studies, lending higher confidence to the results. It is concluded that the SES association with child ADHD is not explained by artifact and requires a mechanistic explanation.     

4~8年级学生分数数量表征的准确性及形式

在分数学习中,分数数量表征是非常重要的方面。本研究利用数字线估计任务对四到八年级学生分数数量表征的情况进行探索。研究结果表明：随着年级升高,被试分数数量表征的准确性也随之提高;被试对单位分数和非单位分数表征的准确性存在显著差异,表现为对单位分数表征的准确性显著高于对非单位分数的表征,这种差异在低年级显著,随着年级的增长,差异逐渐消失;四到八年级学生在0~3数字线上,对分数数量的表征表现为线性形式而非对数形式,且这种线性表征形式是在六年级开始出现并随着年龄增长逐渐发展起来的。中西方儿童在分数数量表征的准确性和形式上有相似的发展路径,但是在表征准确性上中国儿童更高、线性形式出现年级上中国儿童可能更早。     

Reach tracking reveals dissociable processes underlying inhibitory control in 5‐ to 10‐year‐olds and adults

Researchers have proposed that two processes featuring distinct types of inhibition support inhibitory control: a response threshold adjustment process involving the global inhibition of motor output and a conflict resolution process involving competitive inhibition among co‐active response alternatives. To target the development of these processes, we measured the reaching behavior of 5‐ to 10‐year‐olds (Experiment 1) and adults (Experiment 2) as they performed an Eriksen flanker task. This method provided two key measures: initiation time (the time elapsed between stimulus onset and movement onset) and reach curvature (the degree to which a movement deviates from a direct path to the selected target). We suggest that initiation time reflects the response threshold adjustment process by indexing the degree of motoric stopping experienced before a movement is started, while reach curvature reflects the conflict resolution process by indexing the degree of co‐activation between response alternatives over the course of a movement. Our results support this claim, revealing different patterns effects in initiation time and curvature, and divergent developmental trajectories between childhood and adulthood. These findings provide behavioral evidence for the dissociation between global and competitive inhibition, and offer new insight into the development of inhibitory control.     

Vocabulary growth rate from preschool to school‐age years is reflected in the connectivity of the arcuate fasciculus in 14‐year‐old children

The acquisition of language involves the functional specialization of several cortical regions. Connectivity between these brain regions may also change with the development of language. Various studies have demonstrated that the arcuate fasciculus was essential for language function. Vocabulary learning is one of the most important skills in language acquisition. In the present longitudinal study, we explored the influence of vocabulary development on the anatomical properties of the arcuate fasciculus. Seventy‐nine Chinese children participated in this study. Between age 4 and age 10, they were administered the same vocabulary task repeatedly. Following a previous study, children's vocabulary developmental trajectories were clustered into three subgroups (consistently good, catch‐up, consistently poor). At age 14, diffusion tensor imaging data were collected. Using ROI‐based tractography, the anterior, posterior and direct segments of the bilateral arcuate fasciculus were delineated in each child's native space. Group comparisons showed a significantly reduced fractional anisotropy in the left arcuate fasciculus of children in the consistently poor group, in particular in the posterior and direct segments of the arcuate fasciculus. No group differences were observed in the right hemisphere, nor in the left anterior segment. Further regression analyses showed that the rate of vocabulary development, rather than the initial vocabulary size, was a specific predictor of the left arcuate fasciculus connectivity.     

The role of the oath in credibility assessment

Based on the adaptive lie detector theory, this study is an examination of whether taking an oath, as context‐general information, increases the credibility of a suspect. The consistency of the testimonies of 6 eyewitnesses was manipulated so that it could be used as individuating information. There were 2 sets of testimonies: one that was consistent and one that was inconsistent. The results supported the adaptive lie detector theory. The participants judged those persons who took an oath to be more credible than those who did not, but this only happened in situations where the testimonies of the eyewitnesses were inconsistent. The theoretical and practical implications of the findings and future directions are then discussed.     

自发性气胸致失血性休克诊疗策略

分析自发性气胸(spontaneous pneumothorax,SP)出现失血性休克时的临床特点、探讨诊疗策略.分析331例SP并失血性休克的病例资料.结果采用手术治疗者效果最佳.SP致失血性休克者多见于青年男性,多为胸膜顶粘连带出血,急诊微创手术是治疗发展方向.     

高中文理分科及学生认知方式对阅读理解影响的实验研究

以高中二年级学生为被试,探讨文理分科、不同认知方式的学生对不同体裁文章及对文章不同信息加工层次的学习效果的影响。结果表明,（1）文理分科、学生认知方式对学生阅读成绩的影响不显著;（2）从总体上看,学生对不同体裁的文章学习效果不同,对说明文的学习明显优于对散文的学习;在文章不同信息的加工层次上,学生对细节的记忆优于对结构的把握;（3）对于不同体裁的文章,学生在信息加工层次上存在差异,对散文的细节记忆好于对结构的把握,对说明文的结构把握好于对细节的记忆。     

平面几何图形内隐学习的优势效应

在人工语法范式下,以平面几何图形为材料。探讨平面几何图形内隐和外显学习的特点,并增设性别变量以了解内隐和外显学习的性别差异。以108名在校大学生为被试,分内隐和外显学习组,每组男女各半。结果表明：1、指导语上不存在主效应,即平面几何图形内隐学习存在优势效应。2、性别变量不存在主效应,即男女在学习能力上性别差异不显著。3、单元变量上存在主效应,单元二的成绩好于单元一。实验结果再次证明了内隐学习优势效应的普遍存在。