Is the impaired N170 print tuning specific to developmental dyslexia? A matched reading-level study with poor readers and dyslexics

Left N170 print tuning has been associated with visual expertise for print and has been reported to be impaired in dyslexics, using age matched designs. This is the first time N170 print tuning has been compared in adult dyslexics and adult poor readers, matched in reading level. Participants performed a lexical decision task using both word-like stimuli and symbol strings. In contrast to dyslexics, poor readers displayed similar N170 tuning to control expert readers, suggesting that impaired N170 specialization is a hallmark of developmental dyslexia. Our findings provide electrophysiological support for dyslexia being the result of abnormal specialization of the left occipito-temporal areas involved in the expert processing of print. Furthermore, as shown by correlations data and in accordance with the phonological mapping deficit theory, the impaired visual expertise for print described in dyslexics may have been caused by their core phonological deficits.     

Effects of Varying Levels of Treatment Integrity on Toddler Aggressive Behavior

Abstract

Effects of different levels of treatment integrity for a time-out intervention in relation to the aggressive behavior of an 18-month-old were investigated. The time-out intervention was composed of four steps and treatment integrity was systematically varied at 50%, 25%, 75%, and 100%. The results suggest that the 75% and 100% treatment integrity conditions were most effective for decreasing aggressive behavior. Further, there were only minor differences in aggressive behavior between the 25% and 50% treatment integrity conditions. Discussion focuses on the need for assessing optimal and minimum levels of treatment integrity for producing behavior change and the implications for classroom-based interventions.     

社会关系模型在家庭研究中的应用

社会关系模型在20世纪80年代被引入至家庭研究领域,并在多种家庭关系的研究中加以应用和拓展.在该领域中,社会关系模型主要采用循环设计,将变异分解为个体水平、关系水平和家庭水平的效应,也可以分析个体水平和关系水平的互惠效应,代际内部和代际之间的互惠效应,以及家庭成员的相似性等问题;其数据分析的方法主要有单个家庭效应值的计算以及结构方程模型的分析方法两种.今后的研究可以在体现家庭关系的复杂性、三人家庭数据的处理、各效应的外部效度指标以及缺失值的处理等方面进行拓展.     

产品设计领域的消费者审美体验

消费者从产品设计上获得的审美体验会影响他们对产品的感知和购买.审美体验的作用机制涉及神经科学研究、信息处理模型和情感反应过程三部分.具体图形与结构元素、一般化的设计要素、个体因素都会影响消费者对设计的审美体验,而审美体验会进一步通过溢出效应、感染效应和对比效应等方式影响产品性能感知、产品评价和购买意向.未来研究应解决已有研究结果间的矛盾并继续探索美学在消费者行为领域的理论和实践价值.     

工作重塑：获得意义性工作与个人成长的新途径

工作重塑是组织行为学中新近出现的一个热点话题,是指员工通过自己对工作进行重新建构来形塑自己的工作认同以及工作角色,其核心目的就是员工对他们的工作进行再设计以获得较高的工作意义感、工作投入以及工作满意度等,进而快乐地工作。在系统梳理有关工作重塑的理论与实证研究文献的基础上,从工作重塑概念的解读、工作重塑的方式与方法、工作重塑的预测因素、工作重塑对个体与组织的影响以及工作重塑的培养策略等方面进行了综述,以便人们更深入地体会其丰富的理论内涵和实践价值;最后,该文指出未来工作重塑的研究应继续注重理论建构的丰富与完善、关注工作重塑的个体与群体差异性以及深化工作重塑与组织之间的关系研究。     

Successes and failures in resisting cigarettes affect partner support for smoking cessation

Objective: Potential support providers may rely on observable behaviours (e.g. resisting a cigarette vs. smoking) to determine how much and what kind of support to provide. We evaluated the effect of smokers’ salient behaviour on partners’ likelihood of providing positive and negative support.

Design: Partners of smokers (N = 131) were randomly assigned to recall a time when their partner either successfully resisted a cigarette, failed to resist a cigarette or a control condition (no recall). All participants reported the likelihood of providing positive and negative support to their partner. Perceived commitment to quitting smoking was measured as a potential mediator.

Main Outcome Measures: The main outcome was intention to provide support for a quit attempt.

Results: Participants who recalled their partners’ past failures reported more intentions to engage in negative support and smaller ratios of positive to negative intended support than did participants in the success or control condition. These effects were partially mediated by perception of commitment to quitting.

Conclusion: Lapses in a quit attempt may change the nature of the support quitters receive. Interventions to improve communication between partners about the smoker’s commitment to quitting and experienced challenges may result in better support.     

Caution! Warnings as a Useless Countermeasure to Reduce Overconfidence? An Experimental Evaluation in Light of Enhanced and Dynamic Warning Designs

People often display excessive overconfidence when providing interval estimates, which biases decision‐making. Research has investigated the various measures to effectively reduce overconfidence, and the use of warnings has subsequently been considered to have a negligible reduction effect. We demonstrate with two separate experiments that the impact of warnings has to be reviewed in light of dynamic warning designs and cognitive warning process models. In experiment 1, in contrast to previous studies that only used unstructured warnings, we implement a warning incorporating some core elements of a structured warning design based on research in the fields of human factors and ergonomics. Furthermore, accounting for recent developments in the warning literature, we distinguish between static and dynamic warning design. In experiment 2, we examine the effectiveness of different elements of dynamic warnings. We show that a significantly higher reduction of overconfidence can be achieved by combining a structured warning content with a dynamic stimulus change to increase the warning's noticeability. Copyright © 2016 John Wiley & Sons, Ltd.     

Critiquing Statistics in Student and Professional Worlds

This article compares students' critiques within a class discussion about an invented statistic to STEM professionals' critiques from interviews to better understand how the situated meanings of a statistic are similar and different across student and professional worlds. We discuss similarities and differences in how participants constructed meaning for the statistic, and argue that disciplinary practices in schooling will always have an approximate, and somewhat indeterminate, relation to the figured worlds of professional practice.     

From Standardization to Adaptation: Clinical Trials and the Moral Economy of Anticipation

Hailed as the gold standard, the randomized controlled trial (RCT) occupies a hegemonic position at the top of evidence-based medicine’s hierarchy of knowledge. It is testament to the methodology’s capacity for standardization that it can so readily be spoken of in the singular: the RCT. Under what conditions, then, is it possible to speak of change in the gold standard? Since the 1950s, alternative versions of the RCT have been advocated for under the banner of ‘adaptive design’. Adaptive designs allow investigators to make pre-planned changes to a trial on the basis of accruing information while the experiment is ongoing. Initially a niche topic of methodological debate among biostatisticians, the approach is becoming widespread in mainstream drug development. A genealogical analysis exposes the discursive moves used to justify and popularize adaptation, from a focus on patient well-being and the greater good in the 1960s and 1970s, to efficiency and virtualism in the 1990s and 2000s. Changing discourses of time and patienthood have facilitated a move away from standardization as the singular logic of trials towards an appreciation of flexibility, undergirded by probabilistic methodologies. Adams et al.’s [(2009). Anticipation: Technoscience, life, affect, temporality, Subjectivity, 28, pp. 246–265] conceptual framework of anticipation illuminates this evolving moral economy of medical research, in which modes of knowledge production which claim to know the future are supplanting the traditional certainties of fixed and standardized experimental designs. Predictable uncertainty is the currency of this emerging economy, which capitalizes on computer simulation and ever more sophisticated tools of prediction to leverage credibility.     

概化理论缺失数据方差分量估计

各种心理调查、心理实验中, 数据的缺失随处可见。由于数据缺失, 给概化理论分析非平衡数据的方差分量带来一系列问题。基于概化理论框架下, 运用Matlab 7.0软件, 自编程序模拟产生随机双面交叉设计p×i×r缺失数据, 比较和探讨公式法、REML法、拆分法和MCMC法在估计各个方差分量上的性能优劣。结果表明：(1) MCMC方法估计随机双面交叉设计p×i×r缺失数据方差分量, 较其它3种方法表现出更强的优势; (2) 题目和评分者是缺失数据方差分量估计重要的影响因素。