Intervention Models for Mothers and Children at Risk for Injuries

We review risk factors commonly associated with childhood unintentional injuries and highlight adolescent mothers and their young children as a high risk group. Several intervention models of injury, including the epidemiological model, Peterson and Brown's working model, and the socioecological model have been proposed to explain the events that lead to injuries. Discussion of these models is provided and a synthesis of the adolescent parenting model and the socioecological model of injury is suggested as way to address the complex variables that lead to an injury causing event for adolescent mothers and their young children. Finally, we suggest areas of future investigation and their implications for prevention and treatment.     

关于健康带菌者社会性格分类的实证研究

本文针对当前中国处于社会转型期的现状,提出了健康 者社会性格的概念,通过调研发现其维度由八个因素构成,分别的集体主义,独立性、依存性、支配性与安定感,获取了健康带菌者社会性格的分类及其特征,并分析与其健康、病态社会性格的关系。     

青少年社会行为对同伴关系的影响

以349名初中一至三年级青少年为被试,采用同伴提名法和"班级戏剧"量表收集数据,考察社会行为对同伴关系的影响。结果表明:(1)"班级戏剧"量表中的30种社会行为可划分为亲社会行为、攻击行为、退缩行为和有争议行为四个方面;(2)亲社会行为和有争议行为能够正向预测同伴的正向提名,攻击和退缩行为能够正向预测同伴的反向提名,亲社会行为能正向预测社会喜好程度,而社会影响程度则主要是由亲社会、攻击和有争议行为预测的。(3)受欢迎组青少年的亲社会行为和有争议行为较多;被拒绝组的攻击和退缩行为较多;被忽视组的退缩行为最多;有争议组青少年的攻击行为、有争议行为和亲社会行为均较多,退缩行为最少。其中,受欢迎组和被拒绝组又可以根据被欢迎和拒绝的理由而划分出亚类型。     

Who Do You Love, Your Mother or Your Horse? An Event-Related Brain Potential Analysis of Tone Processing in Mandarin Chinese

In Mandarin Chinese, word meaning is partially determined by lexical tone (Wang, 1973). Previous studies suggest that lexical tone is processed as linguistic information and not as pure tonal information (Gandour, 1998; Van Lanker & Fromkin, 1973). The current study explored the online processing of lexical tones. Event-related potentials were obtained from 25 Mandarin speakers while they listened to normal and anomalous sentences containing one of three types of semantic anomalies created by manipulating the tone, the syllable, or both tone and syllable (double-anomaly) of sentence-final words. We hypothesized N400 effects elicited by all three types of anomalies and the largest by the double-anomaly. As expected, all three elicited N400 effects starting approximately 150 ms poststimulus and continuing until 1000 ms in some areas. Surprisingly, onset of the double-anomaly effect was approximately 50 ms later than the rest. Delayed detection of errors in this condition may be responsible for the apparent delay. Slight differences between syllable and tone conditions may be due to the relative timing of these acoustic cues.     

汉字识别中亚词汇语音和语义信息在N170上的神经适应

视觉词汇识别的事件相关电位(ERP)研究发现早期的脑电成分N170具有对词汇的敏感性, 可能反映了字形、语音和语义加工, 目前还没有得到统一的结论。本研究利用汉字形声字声旁表音和形旁表义的独特性, 使用神经适应范式深入考察了N170对汉字亚词汇语音和语义信息的敏感性。实验1操纵了连续汉字的声旁和整字读音重复呈现探究其诱发的神经适应性, 结果发现了左侧电极的N170对声旁和整字读音重复都产生了神经适应。实验2进一步操纵形旁和整字语义的重复呈现, 结果发现左侧N170仅对整字语义相似性具有神经适应性, 而右侧N170对形旁和整字语义重复都产生了神经适应。实验结果表明, 左侧N170不仅对整字语音和语义信息敏感, 还对亚词汇的声旁信息敏感; 而右侧N170对整字语义以及亚词汇的形旁信息敏感。     

部件类型还是交错关系信息的习得促进问题解决？

本研究旨在探讨知觉组块中部件类型和空间交错关系信息的学习是否促进问题解决。研究采用学习-测试范式,71名有效被试（女性25名,平均年龄=20.51±2.35岁）先学习解答组块破解问题然后进行测试。研究分别在学习和测试阶段基于组块破解任务操纵了部件类型（汉字水平vs.笔画水平）和空间交错关系（交错vs.非交错）。学习阶段,被试分别在四组中完成组块破解练习;在测试阶段完成所有四组问题。研究发现,对交错关系信息的学习与利用相对于部件类型信息促进了问题解决：在涉及交错信息的测试任务上,涉及交错信息比非交错信息的学习条件解答率更高,反应时更短;反之则不是。然而部件类型则没有发现类似的促进效应。与此同时,交错关系信息的习得需要对任务的重复操作学习：涉及交错关系信息的组块破解学习成绩在不同任务间并不随时间推移而提高,但会随重复学习次数而提高。     

Lessons Learned From a Randomized Controlled Pilot Trial Testing an Inhibitory Learning Approach to Exposure in Anxious Youth

Accumulating evidence from basic and translational research indicates that fear extinction may be best explained by principles of “inhibitory learning,” by which prefrontal cortical structures inhibit activity in the amygdala. New guidelines for the clinical practice of exposure therapy have arisen from research on inhibitory learning, but these guidelines have received little empirical testing in clinical samples of youth receiving treatment for anxiety disorders. We investigated the acceptability, feasibility, and initial efficacy of conducting exposure therapy for anxiety disorders in youth according to clinical guidelines developed from basic research on inhibitory learning principles, using a pilot randomized controlled trial design. Thirteen youths (ages 7 to 16) were recruited from a university hospital-based pediatric outpatient clinic to participate in a 9-week treatment study and were randomized to either an inhibitory learning-based exposure condition or a standard exposure condition. Results supported the feasibility and acceptability of an inhibitory learning-based approach to exposure therapy in youth and, despite the small sample size, effect sizes were in favor of the inhibitory learning approach on several measures. Differences between the standard exposure and inhibitory learning conditions are discussed using two case examples. Discussion of results and lessons learned may contribute to changes in clinical guidelines for optimally effective practice of exposure.     

汉字、数字和符号的身份信息和位置信息加工比较——中文阅读的特别机制

汉字、数字和符号的身份信息和位置信息加工存在怎样的差异,以及在不同呈现方式下是否表现不同,现在仍不清楚。本研究采用9选1部分报告范式,通过字符串水平呈现和竖直呈现两个实验来对这一问题进行探究。结果发现,水平呈现对于不同类型字符的身份信息和位置信息加工都更有优势。数字在不同呈现方式下都表现出绝对优势,且水平呈现时存在首位置优势,表明“改变的接受域”理论对于汉语语系地区数字系列位置效应解释的可能性。同时,汉字与符号更为相似,但水平呈现时汉字位置信息加工更好,且表现出更为明显的注视点左侧(包括注视点)优势,这可能是中文阅读的特别机制。