阅读障碍儿童视觉长时记忆特点研究

本研究采用on-line的实验方法,以再认作为记忆任务,比较了阅读障碍儿童和正常儿童在间隔10分钟和一天时对简单材料和复杂材料的视觉长时记忆能力。结果表明:(1)在间隔10分钟时,无论是简单还是复杂的视觉材料,阅读障碍儿童与正常儿童再认能力都不存在显著差异。(2)当间隔一天时,阅读障碍儿童对简单材料的长时记忆能力不落后,而在复杂的视觉材料上,阅读障碍儿童的长时记忆成绩显著落后于正常儿童。     

Attention,Working Memory,and Long-Term Memory in Multimedia Learning: An Integrated Perspective Based on Process Models of Working Memory

Cognitive models of multimedia learning such as the Cognitive Theory of Multimedia Learning (Mayer 2009) or the Cognitive Load Theory (Sweller 1999) are based on different cognitive models of working memory (e.g., Baddeley 1986) and long-term memory. The current paper describes a working memory model that has recently gained popularity in basic research: the embedded-processes model (Cowan 1999). The embedded-processes model argues that working memory is not a separate cognitive system but is the activated part of long-term memory. A subset of activated long-term memory is assumed to be particularly highlighted and is termed the “focus of attention.” This model thus integrates working memory, long-term memory, and (voluntary and involuntary) attention, and referring to it within multimedia models provides the opportunity to model all these learning-relevant cognitive processes and systems in a unitary way. We make suggestions for incorporating this model into theories of multimedia learning. On this basis, one cannot only reinterpret crucial phenomena in multimedia learning that are attributed to working memory (the split-attention effect, the modality effect, the coherence effect, the signaling effect, the redundancy effect, and the expertise reversal effect) but also derive new predictions.     

It's All a Matter of Timing: Sign Visibility and Sign Reference in Deaf and Hearing Mothers of 18-Month-Old Children

The signed and spoken language produced by 14 mothers to their 18-month-old children during free play was analyzed. All the children had profound prelingual deafness. Seven of the mothers were profoundly deaf and fluent users of British Sign Language (BSL) or Auslan. The other seven were hearing and had enrolled in a signing program. Maternal signed utterances were classified according to whether they were made in the child's line of sight and whether they had a salient context; that is, they referred to an object or event at the child's current focus of attention. Spoken utterances were coded by word length. Comparisons between the two groups showed that both deaf and hearing mothers produced a majority of single-sign utterances (rather than utterances containing two or more signs). Deaf mothers also produced a majority of single-word spoken utterances, whereas the hearing mothers produced a significantly greater proportion of multiword utterances. As predicted, deaf mothers were more successful than hearing mothers in presenting signed utterances with a salient context that were visible to their children. Across the group as a whole, the total number of visible and salient signed utterances produced in 10 minutes was positively correlated with the total number of occasions on which mothers successfully redirected their child's attention or the child spontaneously turned to look at the mother. This suggests that deaf children who are visually attentive to their mothers receive a greater number of visible signed utterances with a salient context. I argue that this provides a more secure context for early language development.     

Stressful Events in the Lives of UK Children: a glimpse

A total of 366 UK children in four different schools, one in Wales, one in Northern Ireland, and two in England, were asked to respond to 20 potentially stressful life experiences. Each event was rated on a scale ranging from 7 (the most upsetting) to 1 (the least), and the scale value and interquartile range were calculated. In addition, whether or not a given event was actually experienced was noted. Across the groups, there was a very high degree of agreement on all three measures, the median correlations being 0.95 for scale values, 0.70 for interquartile ranges, and 0.92 for incidence. Furthermore, the pooled UK results were found to correlate equally closely with the figures previously obtained in the USA and five other countries. The possibility of a prevalent ‘culture of childhood’, cutting across geo‐political boundaries and ethnic groupings, appears to receive further support.     

影响口译记忆的因素及改善记忆效果的策略

记忆是口译过程中的关键步骤,对口译的效果有决定性的影响。影响口译记忆的因素包括译者的健康状况和语言水平、口译现场环境、译者的工作动机、记忆方式、待记忆材料的特性、对待记忆材料的处理水平及译者的相关的背景知识等。译员应采取意象记忆法、句子主体记忆法、篇章结构程式化记忆法等策略,来提高口译记忆效果。     

古希腊工艺风格的形成因素

本文从民族、环境风俗、时代精神等三方面出发,分析了古希腊工艺美术风格形成和发展的原因以及其区别于其它民族工艺美术的风格特征.     

学习不良者的工作记忆特点

有关学习不良者的工作记忆特点的研究表明,阅读不良者与数学学习不良者都存在语音回路功能缺陷(如语音表征的效率低)以及中央执行器功能缺陷(如对注意控制的能力不足) ,即学习不良与工作记忆缺陷密切相关。今后的研究应进一步探明学习不良者工作记忆缺陷的深层原因。     

Mapping the Trajectory of Socioeconomic Disparity in Working Memory: Parental and Neighborhood Factors

Working memory (WM) is positively correlated with socioeconomic status (SES). It is not clear, however, if SES predicts the rate of WM development over time or whether SES effects are specific to family rather than neighborhood SES. A community sample of children (n = 316) enrolled between ages 10 and 13 completed four annual assessments of WM. Lower parental education, but not neighborhood disadvantage, was associated with worse WM performance. Neither measure of SES was associated with the rate of developmental change. Consequently, the SES disparity in WM is not a developmental lag that narrows or an accumulating effect that becomes more pronounced. Rather, the relation between family SES and WM originates earlier in childhood and is stable through adolescence.     

Memory and Processing Speed in Preterm Children at Eleven Years: A Comparison with Full-Terms

This study examined the effects of prematurity on 11-year-olds' performance on 2 specific aspects of cognition—memory and processing speed, using a new computer-administered battery, the Cognitive Abilities Test (CAT: Detterman). Preterms performed more poorly than their full-term controls on all memory tasks; this relative deficit was associated with the presence and severity of neonatal Respiratory Distress Syndrome (RDS). Preterms were also slower on selected aspects of processing speed but not on motor speed. Memory and processing speed, taken together, accounted for much of the 10-point difference in WISC-R IQ between groups.     

Learning From Others: The Effects of Agency on Event Memory in Young Children

Little is known about the influence of social context on children's event memory. Across four studies, we examined whether learning that could occur in the absence of a person was more robust when a person was present. Three-year-old children (N = 125) viewed sequential events that either included or excluded an acting agent. In Experiment 1, children who viewed an agent recalled more than children who did not. Experiments 2a and 2b utilized an eye tracker to demonstrate this effect was not due to differences in attention. Experiment 3 used a combined behavioral and event-related potential paradigm to show that condition effects were present in memory-related components. These converging results indicate a particular role for social knowledge in supporting memory for events.     

Developmental and Intervention-Related Change in Autobiographical Memory Specificity in Maltreated Children: Indirect Effects of Maternal Reminiscing

This study examined the development of autobiographical memory specificity (AMS) in a longitudinal randomized controlled trial of 242 maltreated and nonmaltreated children (aged 36–86 months; 50.4% male; 39.7% Black, 25.9% White, 34.5% Latinx/other) and their mothers. Half of the maltreated families were randomized to receive an intervention to improve maternal reminiscing. The effects of maltreatment and the intervention on children’s AMS via two indices of maternal reminiscing, sensitive guidance, and elaboration, were evaluated. Bidirectional associations between AMS and child maladjustment were also examined. Intervention-related improvement in maternal sensitive guidance 6-month postintervention (b* = .36) related to greater AMS among maltreated children 1 year later (b* = .19). These findings underscore the role of maternal sensitive guidance in facilitating AMS.     

Self-Concept and Deafness: Factors Affecting the Development of Deaf Children

From the perspective of hearing-impaired individuals, deafness or hearing impairment means more than just the inability to hear. Deafness imposes on the individual in almost every aspect of their lives, educationally, socially and emotionally. How then does the hearing-impaired individual perceive himself in relation to others? This paper attempts to answer this question by looking into the literature on the psychosocial factors that might influence the self concept of hearing-impaired individuals.

Three factors are delineated; they are familial acceptance, attitudes of society, and communication. Implications for parents and teachers are suggested.     

The effects of the Healthy Steps for Young Children Program: results from observations of parenting and child development

The Healthy Steps for Young Children Program (HS) is designed to provide support for new parents through the pediatrician's office. We present findings of the effect of HS on the quality of mother–child interaction, security of attachment, and child behavior using observational data from two of the HS sites that utilized a randomized treatment design. Results indicated that mothers participating in Healthy Steps were more likely to interact sensitively and appropriately than mothers in the comparison group at the second assessment point (age 34–37 months) but not at the first assessment point (age 16–18 months). There were no differences in child outcomes at either time point when the cross-sectional data were analyzed. However, the results of the longitudinal analysis (which included families who participated in the home observations at both Time 1 and Time 2) indicated that Healthy Steps participation was associated with greater security of attachment and fewer child behavior problems.     

Differential Effects of Salient Visual Events on Memory-Guided Attention in Adults and Children

Both salient visual events and scene-based memories can influence attention, but it is unclear how they interact in children and adults. In Experiment 1, children (N = 27; ages 7–12) were faster to discriminate targets when they appeared at the same versus different location as they had previously learned or as a salient visual event. In contrast, adults (N = 30; ages 18–31) responded faster only when cued by visual events. While Experiment 2 confirmed that adults (N = 27) can use memories to orient attention, Experiment 3 showed that, even in the absence of visual events, the effects of memories on attention were larger in children (N = 27) versus adults (N = 28). These findings suggest that memories may be a robust source of influence on children's attention.     

常熟市7～12岁少儿膳食营养现状及影响因素分析

通过网络调查问卷调查常熟市7～12岁少儿膳食习惯,分析其影响因素以改善少儿膳食营养状况.结果显示,少儿肥胖率偏高,且男生高于女生,同时存在挑食、偏食以及营养过剩等问题.分析结果说明重视早餐食用频率、加餐食物种类以及营养教育对改善少儿膳食营养有积极的影响.     

The Language Experience of Deaf Children: Its Relation to Spontaneous Rehearsal in a Memory Task

This study was an investigation of whether the language history of deaf children is related to their delayed emergence of spontaneous memory strategy use. Use of rehearsal on a serial recall task was compared for 41 deaf (age 5 to 15 years) and 45 hearing (age 5 to 8 years) children. A lag of several years was noted in the emergence of spontaneous rehearsal for the deaf. Hierarchical discriminant function analysis showed language history to be a nearly perfect mediator of the relation between age and rehearsal use, effectively eliminating the lag in the emergence of rehearsal use. Increased language experience was hypothesized to be associated with automatization of language skills, and thus with decreased processing demands when language-based strategies are used.     

Modifications of Recognition Memory Processes in Preterm Children: An Event‐Related Potential Study

Prematurity may cause hippocampal compromise. Therefore, hippocampus‐dependent memory processes (recollection‐based retrieval) may be more impaired than hippocampus‐independent processes (familiarity‐based retrieval). The memory of 18 children born preterm with reduced hippocampal volumes, without neonatal complications (weeks of gestation < 34, weight < 1,600 g), and 15 controls (8–10 years) was tested using an item recognition task. While groups were equal in memory performance, dissociation was found: The event‐related potential (ERP) correlate of familiarity was intact in the preterm group, whereas the correlate of recollection was attenuated. A follow‐up experiment ruled out that this was due to general cognitive deficits. Furthermore, gestational age correlated with the ERP index of recollection. Thus, recognition memory in preterm children may be characterized by a compensation of attenuated recollection by familiarity.     

Language and Memory Development in Children with Down Syndrome at Mainstream Schools and Special Schools: A comparison

Increasingly, children with Down syndrome are receiving their education in mainstream schools but little research has investigated whether these placements may influence language and memory development. The present study compared 22 children with Down syndrome in mainstream school placements matched for chronological age with 22 children attending special schools in a different LEA where mainstream placements were rare. The children were assessed to obtain measures of the following language and memory abilities: receptive vocabulary; grammar comprehension; sentence repetition; digit span; face recognition; and memory for hand movements. Children in mainstream placements achieved significantly higher scores for vocabulary, grammar and digit span measures, but not for non-language based memory measures. More importantly, even after controlling for age and receptive vocabulary, grammar understanding and digit spans were significantly greater for the mainstream children.     

学前儿童科学教育家园互动及影响因素研究

对中山市5个区和24个镇的48所幼儿园抽样调查,充分了解学前儿童科学教育家园互动的状况,发现人口统计学特征、家长的家庭背景、幼儿园的等级、学校和教师组织互动活动具体情况对家园互动效果的影响。对家园互动效果满意度影响因素进行回归分析,发现:家长和教师对学前儿童科学教育互动的认知是影响互动效果及满意度的重要因素,具体的家园互动活动过程的设计和幼儿园的性质是影响互动效果及满意度的主要因素之一。建议:幼儿教师思想上高度重视家园互动;活动设计上尊重幼儿的身心发展特点;加强家园沟通,挖掘家庭教育资源等。     

Letter Processing and the Formation of Memory Representations in Children with Naming Speed Deficits

The ability to recognize letter patterns within words as a single unit is important for fluent reading. This skill is based on previously established memory representations of common letter patterns. The ability to form these memory representations may be impaired in some poor readers, particularly readers with naming speed deficits (NSD). This study explored factors that influence letter processing and the subsequent formation of memory representations of letter strings in children with and without a NSD. Children were presented with a letter string, followed by a probe unit that was either a single letter, a two-letter cluster, or a repetition of the whole string. Children indicated whether or not the probe had been present in the preceding string. Two factors were manipulated: (a) amount of time to process the initial letter string, and (b) level of orthographic structure present in the letter string. Results indicated that overall, children with NSD performed less accurately than children without NSD. However, children with NSD showed no differential benefit in performance as a result of longer time to process a letter string. In addition, all readers were able to make use of the orthographic structure in a letter string to aid performance. Implications of results for establishing memory representations of letter strings are discussed.