4～6岁儿童人物画结构比例影响因素的比较研究

本研究旨在探索不同文化背景下影响 4～ 6岁儿童人物画结构比例的因素及认知发展的规律。研究分为自由画人与按照规定要求画人两部分。发现多因素导致儿童自由画人结构失调 ,如绘画顺序、空间统筹安排能力、头躯包含的器官以及对其重要性的认识等均会影响儿童自由人物画的头躯比值。儿童能按要求事先安排规定人物画的结构比例 ,根据细节多寡相应加大或缩小人体有关部分 ,如增大躯干部分以容纳夹克衫的纽扣、口袋等细节 ,或相应缩小头的轮廓以示背影等。此外 ,注意与重要性等因素也会对规定人物画结构产生影响。     

手书运动分析及其在书写困难中的研究

手书运动分析被广泛地用于正常手书的运动控制机制和各种精细运动障碍的潜在病理研究.本文回顾了手书运动分析的基本原理,使用仪器,采用的运动参数,手书的模式和任务,以及影响手书运动分析的各种因素,并且重点回顾了手书运动分析在书写困难中的可信度,诊断和干预疗效研究.这种基于手书过程的分析技术能够揭示书写困难的潜在病理机制,弥补了传统的基于书写结果分析的评估法的缺陷.手书运动分析不仅可以运用于精细运动障碍人群的病理机制探讨,而且可用于其他特殊人群认知特点的研究.     

手指的感知、运动以及数量表征对数字认知的促进作用

手指是儿童在习得数字符号之前最常使用的表征数量的工具,大量研究都表明手指在数字认知中具有促进作用。但是,目前仍不清楚手指在数字认知中的作用机制。综述从手指感知、手指运动以及手指数量表征三个方面总结了手指在数字认知中所起的作用。手指感知可能通过影响儿童的数量表征能力间接地影响其它数学能力;与表征量有关的手指运动可能促进了数量大小的加工。关于手指数量表征在数字认知中的作用存在两种有争议的观点：一种认为手指数量表征促进了儿童由非符号数量表征向符号数量表征的转化;另一种认为手指数量表征可能是一种数量语义表征方式。未来应该在发展、作用机制、性别差异等方向继续开展研究,进一步探讨手指在数字认知中所起的作用。     

消费心理学中的风险认知

文章回顾了消费心理学研究中有关风险认知的文献,对于双因素模型、多维度模型、复杂模型和整合模型等风险认知的概念模型进行了综合介绍,并分析了影响消费者风险认知的因素、产品风险与服务风险的差异以及降低风险认知的策略。文章最后展望了消费者风险认知的研究趋势,尤其是电子商务中的风险认知问题。     

Children's Creative Intentions: Where do the Ideas for their Drawings Come from?

The process of drawing is a creative endeavor, often beginning with ideas of what to draw. This exploratory study aimed to explore these creative intentions of pupils from mainstream schools (tending to focus on observational, imaginative, and expressive drawing), and from Steiner schools (tending to focus on imagination and expression). Fifty-seven children (age 6–16 years) drew a single drawing at the request of the researcher. Before and after drawing, children completed a semi-structured interview about the content of their drawing. This interview was first analyzed qualitatively using thematic analysis to describe where children got the ideas for their drawings from. Four key themes were identified: (a) content from immediate surroundings, (b) content from memory, (c) representational content with element of imagination added, and (d) intention to express a mood or message. Content analysis was then used to quantify the interview responses and compare them between the school types. This indicated no difference in the frequency that mainstream and Steiner pupils referred to ideas based on real-world referents or imagination. However, Steiner pupils talked more about expressive ideas. The results suggest that children use a wide range of sources when generating ideas of what to draw, including their educational experiences.     

Effets du bilinguisme précoce sur la flexibilité représentationnelle et procédurale dans le dessin du bonhomme

The present research aims to evaluate representational and procedural flexibility by comparing the performances of simultaneous bilingual children French-Arabic (n = 28), successive bilingual children Tamil-French (n = 21) and French monolinguals (n = 24) at 5 years old and at 8 years old educated, in public school, in a disadvantaged neighborhood. The paradigm of the man that does not exist (Karmiloff-Smith, 1990) has been proposed to measure the ability to introduce graphic innovation into a familiar production and drawing a man by starting with the foot (Baldy, 2010) was used to evaluate the ability to make an usual pattern in an unusual way. The results show that bilingual children as young as 5 years old produce significantly more inter-categorical innovations than their monolingual peers while in monolingual children this capacity doesn’t appear until 8 years old. In procedural representations, the results are more nuanced. The underlying mechanisms that explain the best performance of bilingual children are discussed.     

Exposure to electronic media between 6 and 24 months of age: An exploratory study

This study explores the associations between electronic media exposure, age, and socioeconomic status (SES) in a longitudinal sample of 24 infants from English-speaking families. Leveraging Language ENvironment Analysis (LENA) technology, the study seeks to characterize the relation between electronic media exposure and parental and child vocal activity. We analyzed ecologically valid, daylong audio recordings collected in infants’ homes when they were 6, 10, 14, 18, and 24 months old. SES was measured with the Hollingshead Index, and exposure to electronic media and adult and infant vocal activity were measured automatically with LENA. On average, the children in the sample were exposed to 58 min of electronic media daily. We found that electronic media exposure was negatively associated with SES and decreased with child age, but only amongst high-SES families. We also found that electronic media exposure negatively impacted concurrent adult and child vocal activity, irrespective of SES and infant age. The present findings are an important step forward in examining the role of demographic factors in exposure to electronic media and enhance our understanding of the mechanisms through which exposure to electronic media may impact linguistic development in infancy and beyond.     

A Comparison of Selected Behaviors of Identical Twins,One Blind from Birth

The purpose of this study was to compare differences in mental-emotional, fine perceptual-motor and gross motor behaviors of a set of 13 year-old identical twins, one of whom was blind from birth. In general, the blind twin was superior in performances where total body involvements were minimal and fine manipulative movements of the hands and/or fingers were stressed. The blind twin also appeared to be more well-adjusted emotionally than the sighted twin.     

Deliberate Control of Continuous Motor Performance

The authors examined the means by which people vary movement parameters to satisfy more than 1 constraint at a time in a repetitive motor task. The authors expected that when participants (N = 12) were simultaneously confronted with spatial and temporal constraints in an ellipse-drawing task, they would either exploit the intrinsic amplitude-frequency relationships or activate less natural control regimes to prioritize their movement goals. By focusing on local amplitude and frequency errors and parameter changes from 1 movement to the next, the authors distinguished parameter changes that reflected exploitation of biomechanics from those that required deliberate control. The findings demonstrated that at low movement speeds, participants can pursue multiple movement goals simultaneously; at higher speeds, their capacity to satisfy multiple task goals is reduced. The authors used a new method of inferring deliberate control from movement kinematics in the present study.     

Simultaneous Event-Based and Emergent Timing: Synchronization,Continuation, and Phase Correction

It has been claimed that rhythmic tapping and circle drawing represent fundamentally different timing processes (event-based and emergent, respectively) and also that circle drawing is difficult to synchronize with a metronome and exhibits little phase correction. In the present study, musically trained participants tapped with their left hands, drew circles with their right (dominant) hands, and also performed both tasks simultaneously. In Experiment 1, they synchronized with a metronome and then continued on their own, whereas in Experiment 2, they synchronized with a metronome containing phase perturbations. Circle drawing generally exhibited reliable synchronization, although with greater variability than tapping, and also showed a clear phase-correction response that evolved gradually during the cycle immediately following a perturbation. When carried out simultaneously in synchrony, with or without a metronome, the two tasks affected each other in some ways but retained their distinctive timing characteristics. This shows that event-based and emergent timing can coexist in a dual-task situation. Furthermore, the authors argue that the two timing modes usually coexist in each individual task, although one mode is often dominant.