The Micro-Structure of Tapping Movements in Children

In order to investigate the development of movement speed in relation to movement organization, children of 5, 6, 7, 8 and 9 years of age and adults carried out a reciprocal tapping task, in which time pressure and distance were manipulated. The duration, velocity, acceleration and accuracy of the movements were compared between age groups. Age differences appeared mainly in the homing time, not in the duration of the distance covering movement phase. Accuracy and velocity of the distance covering movement phase differed with age. Time pressure affected the homing time, but not the duration of the distance covering phase. Distance manipulation affected mainly the velocity and duration of the distance covering movement phase and the homing time. In the discussion it is contended that age differences in homing time may be related to both the accuracy of the distance covering movement phase and the rate of information processing of the subject.     

老年人和大学生决策规则稳定性的比较研究

遵守规则是理性决策的必要条件。本研究考察了222名大学生和157名老年人进行选择活动时所遵循的规则的稳定性。研究发现,大学生的选择与老年人相比,具有显著的“不规则”倾向,然而此倾向在老年人中并不存在。在面对假设的超市折扣卡时,大学生的“非规则”选择显示出他们在一定程度上缺乏理性,而老年人的“精明”决策进一步证明其与日常生活相关联的复杂认知能力如判断和推理等在老龄期依然处于较高的水平。     

A Scale for Measuring Persistence in Children

Persistence and its assessment have been studied since the 1920s. One common approach in measuring persistence has been through testing the subject's ability to solve difficult or monotonous problems. Another approach has been through questionnaires. Although persistence is very important in academic achievement and in the general development of personality, no questionnaires have been developed for measuring persistence in children. The present research concerns the development of such a scale. It includes 40 items and was tested on 322 Israeli children aged 7-13. The internal reliability of the scale (Cronbach alpha) was .66, and the test-retest reliability after 6 months was .77. The scale differentiated active gymnasts from nongymnasts as well as persistent gymnasts from dropout gymnasts. In addition, significant correlations were found between the scale and the need-persistence measure of the Rosenzweig Picture Frustration Study, Locus of Control, and other measures. We discuss these findings along with the significance of persistence in everyday life.     

An Event-Related Potential Study of Item Recognition Memory in Children and Adults

The purpose of this study was to contrast children's event-related potentials (ERPs) with those of adults in an item recognition memory task. Four-year-old children and adults were presented with pictorial images, one half of which had been previously shown, and were asked to indicate whether each picture had been seen before. In both samples, an old-new effect was found in the ERP, namely that responses to correctly recognized old pictures elicited more positive-going ERPs than responses to correctly rejected new pictures. However, there were differences between adults' and children's ERPs with respect to the asymmetric scalp distribution and the time course of the old-new difference. In adults, the ERP differences between old and new pictures were bilateral, whereas in children the differences had a tendency to be stronger over the right hemisphere. In addition, children's ERP effects for correct discrimination between old and new pictures began around 400 to 500 msec later than it did in adults. The similarities and differences between the child and adult findings are discussed in terms of developmental changes in cognitive abilities that may be mirrored through corresponding changes in ERPs.     

学习障碍儿童情绪理解特点比较研究

本研究以90名学习障碍儿童和90名一般儿童为对象,采用表情图片和情境故事法, 探讨学习障碍儿童情绪理解特点.研究发现,学习障碍儿童在情绪理解方面存在一定缺陷,具体表现为:(1)表情识别能力差;(2)自我意识情绪识别水平低下;(3)混合情绪识别较差;(4)情绪原因理解落后;(5)情绪隐藏理解较差;(6)情绪改变理解水平低下.     

7～11岁儿童持续注意能力的性别差异研究

本研究采用颜色、图形和数字信号监测的三种警觉任务形式 ,来探索7～ 1 1岁儿童持续注意能力的性别差异。结果发现 ,男女儿童持续注意随时间的变化趋势一致 ;7岁男性儿童的持续注意能力优于女性儿童 ,而 9岁和 1 1岁男女儿童的持续注意能力各有自己的风格 ,男性儿童反应快而正确率低 ,女性儿童反应慢而正确率高。     

A Note on Modulations and Structuring of Locomotion in Children and Adults

The aim of this study was to investigate the modulations of locomotion induced by a rhythmic cognitive task (counting one’s steps). Subjects (6-and 8-year-olds and adults) were requested to walk freely, and then to walk while counting their steps. Here a decrease in cadence values was observed in children only, with quasi-total repercussions on velocity at the age of 6 only. The spatiotemporal structuring of locomotion described here is already present at 6 years of age and is not altered in the step-counting situation: strong links were observed between cadence and velocity, and between stride length and velocity, and weak links between cadence and stride length.     

寄托儿童与一般儿童人格特征的比较研究

寄托儿童是我国在新时期出现的儿童群体。采用艾森克人格问卷（EPQ）和学生团体主题统觉测验（G—TAT）对温州地区160名寄托儿童和一般儿童进行调查,结果表明,寄托儿童和一般儿童在一些人格特征方面存在差异。最后从社会交往角度尝试分析了导致这些人格特征差异的原因。     

Data-Driven Belief Revision in Children and Adults

The ability to use numerical evidence to revise beliefs about the physical world is an essential component of scientific reasoning that begins to develop in middle childhood. In 2 studies, we explored how data variability and consistency with participants’ initial beliefs about causal factors associated with pendulums affected their ability to revise those beliefs. Children (9–11 years old) and college-aged adults ran experiments in which they generated, recorded, and interpreted data so as to identify factors that might affect the period of a pendulum. In Study 1, several children and most adults used observed evidence to revise their initial understanding, but participants were more likely to change incorrect noncausal beliefs to causal beliefs than the reverse. In Study 2, we oriented participants toward either an “engineering” goal (to get an effect) or a “science” goal (to discover the causal structure of the domain) and presented them with variable data about potentially causal factors. Science goals produced more belief revision than engineering goals. Numerical data, when presented in context, with appropriate structure, can help children and adults reexamine their beliefs and initiate and support the process of conceptual change and robust scientific thinking.     

Using Dichotic Listening to Study Bottom-up and Top-down Processing in Children and Adults

The study examined top-down attention modulation of bottom-up processing in children and adults under conditions of varying bottom-up stimulus demands. Voiced and unvoiced consonant-vowel syllables were used in a dichotic-listening situation to manipulate the strength of the bottom-up stimulus-driven right ear advantage when subjects were instructed to focus attention on, and report, either the left or right ear stimulus. We predicted that children would differ from adults in their ability to use attention to modulate a lateralized ear advantage, and particularly when there was a conflict between the direction of the bottom-up ear advantage and the direction of the top-down attention instruction. Thirty children and 30 adults were presented with dichotic presentations of consonant-vowel syllables. The results showed that the voicing manipulation affected the strength of the ear advantage, and that the children performed significantly below the adults when the voicing parameter caused a strong conflict between bottom-up and top-down processing. Thus, children seem to lack the cognitive flexibility necessary to modulate a stimulus-driven bottom-up ear advantage, particularly in situations where right ear advantage (REA) is enhanced by the acoustic properties of the stimuli and attentional demands require a left ear shift. It is suggested that varying the stimulus demands in a dichotic-listening situation may be a novel way to study cognitive development.     

成人与中学生科学概念形成过程的四个对比实验

以一组非人工的、自然的科学概念(“反作用力”、“机械能守恒”、“熵”和“场”)为学习内容,分别以成人和中学生为被试,实验研究成人和中学生科学概念形成过程的异同。结论如下：(1)成人与中学生科学概念形成过程均分为振荡渐进期、高原期和突变期。(2)成人的振荡渐进期较长;中学生的振荡渐进期较短且振荡特征比较明显。(3)成人的高原期出现较晚,但持续较长;中学生的高原期出现较早,但持续较短。(4)中学生的突变期的跨度随概念的抽象程度提高而越来越大。     

The Construction of Symmetry in Children and Adults

The development of the concept of symmetry is important to an overall understanding of cognitive development in children and to spatial cognition in particular. Age differences in the construction of the 3 types of symmetry (bilateral, translational, and radial) were investigated in children and adults engaged in block construction. Children 2–4.5 years old produced bilateral symmetry in low frequencies independent of their precise vertical alignment of blocks. Children 4–12 years old and adults produced all 3 types of symmetry. The hypothesis predicting the sequence and frequency of the 3 types of symmetry based on an analysis of spatial complexity was partially supported. Bilateral symmetry was produced at significantly higher frequencies than the other 2 types across all age groups. Children 5–12 years old produced adult levels of bilateral symmetry while children 9–12 years old reached adult levels of construction of translational and radial symmetry.     

高自控与低自控儿童的控制归因、自控期望比较研究

采用问卷法,对小学3～5年级179名高自控和188名低自控儿童的控制归因、自控期望特征进行比较研究。研究结果表明;(1)高自控儿童易做内归因,低自控儿童易做外归因;随年龄增长,儿童内归因的准确性提高;男生比女生更易采用外归因,内归因的性别差异不显著。(2)高自控儿童自控期望高,低自控儿童自控期望低;随年龄增长,儿童的自控期望增强;各年级男生都比女生自控期望低,儿童中低自控男生自控期望最低。     

A Normative and Comparative Study of the Hand Test with Normal and Delinquent Children

Normative data obtained on the Hand Test from 114 secondary school boys, 52 institutionalized male delinquents, and 26 institutionalized female delinquents, were compared. Significant differences were in the expected direction for certain scores. Comparison with the “equivalent” American samples given by Wagner shows marked differences. Looseness of definition of certain scoring categories affected interscorer reliability.     

听障儿童外部情绪理解研究

通过自编的外部情绪理解问卷,考察了听障儿童表情识别、情绪情景识别和提示物理解等外部情绪理解三个成分的发展状况。结果表明:(1)听力障碍儿童在外部情绪整体理解、表情识别、情绪情景识别和提示物理解四方面的得分都显著低于普通儿童;(2)不同年级听力障碍儿童的外部情绪理解、表情识别、情绪情景识别和提示物理解四方面得分存在显著差异,不同性别听力障碍儿童外部情绪理解差异不显著;年级和性别的交互作用显著;(3)父母听力状况不同的听障儿童,其外部情绪理解水平差异显著。DD儿童的外部情绪整体理解、表情识别和情绪情景识别得分显著高于DH儿童。     

触觉空间精确性与触觉神经元密度相关联的验证

本研究应用栅栏定向任务,通过对小学一年级儿童和大学生的触觉敏感性的比较,验证触觉敏感性与神经元密度的关系。结果表明：对较大的易于分辨的刺激,成人可以完成得较好,而对较细小的难于分辨的刺激,儿童成绩更好。本研究验证了高感受单元密度对应较强的触觉敏感性的假设。     

对偶比较法、等级排列法和两极递进式排序法的比较

排序不仅是科学研究的常用方法,在现实生活中也有着广泛应用,但对于不同排序方法排序结果的比较却鲜有报道.本研究通过颜色偏好实验考察了对偶比较法、等级排列法和两极递进式排序法三种排序方法的稳定性和一致性等指标,并比较了三种方法的优劣.结果表明:三种排序方法在颜色偏好的判断作业中具有较高的稳定性和一致性,其中以对偶比较法的稳定性稍高;三种排序方法在稳定性、经济性、简便性、直观性和适用条件上各有优劣,文末就三种排序方法的应用提出了建议.     

Speech-Language Outcomes of Hemispherectomy in Children and Young Adults

Children and young adults who had undergone right or left hemispherectomy for intractable seizures after a period of normal language acquisition were compared with respect to scores on speech and language tests. The majority of the subjects had full scale IQs in the borderline to mentally retarded range. Language scores were computed in relation to estimated mental age, not chronological age. On this basis, the left hemispherectomized children were more likely to show syntactic comprehension and rapid-rate auditory processing deficits than the right hemispherectomized. The two groups were similar to one another and to normal children in speech production. The findings are discussed in relation to developmental language disorders.