Speech perception deficits by Chinese children with phonological dyslexia

Findings concerning the relation between dyslexia and speech perception deficits are inconsistent in the literature. This study examined the relation in Chinese children using a more homogeneous sample—children with phonological dyslexia. Two experimental tasks were administered to a group of Chinese children with phonological dyslexia, a group of age-matched control children, and a group of adults. In addition to a categorical perception task, a selective adaptation task was carried out. The results indicated that Chinese children with phonological dyslexia were less consistent than both the child and adult control groups in identifying stimuli within a given phonetic category. Furthermore, they did not show any significant adaptation effects in the selective adaptation task even when the adapting stimulus was identical to an endpoint stimulus in the test continuum. It seems that children with phonological dyslexia have a general deficiency in representing and processing speech stimuli.     

The Influence of Child-Directed Speech on Word Learning and Comprehension

This paper describes an investigation into the function of child-directed speech (CDS) across development. In the first experiment, 10–21-month-olds were presented with familiar words in CDS and trained on novel words in CDS or adult-directed speech (ADS). All children preferred the matching display for familiar words. However, only older toddlers in the CDS condition preferred the matching display for novel words. In Experiment 2, children 3–6 years of age were presented with a sentence comprehension task in CDS or ADS. Older children performed better overall than younger children with 5- and 6-year-olds performing above chance regardless of speech condition, while 3- and 4-year-olds only performed above chance when the sentences were presented in CDS. These findings provide support for the theory that CDS is most effective at the beginning of acquisition for particular constructions (e.g. vocabulary acquisition, syntactic comprehension) rather than at a particular age or for a particular task.     

Performance and Private Speech of Children with Attention-Deficit/Hyperactivity Disorder While Taking the Tower of Hanoi Test: Effects of Depth of Search,Diagnostic Subtype,and Methylphenidate

We administered the Tower of Hanoi to demographically comparable samples of control participants (n = 34) and children with the Combined (n = 22) and Inattentive subtypes (n = 19) of Attention-Deficit/Hyperactivity Disorder (ADHD). Controls excelled over children with the Inattentive subtype, who outperformed patients with the Combined subtype. These results replicated findings of greater executive deficits in the Combined than in the Inattentive type of ADHD. Double-blind administration of methylphenidate improved task performance only for patients with the Inattentive subtype. In a drug-free Baseline session, children with both subtypes of ADHD made more private verbalizations than controls, particularly when failing puzzles. In later sessions, regardless of drug condition, the inattentive sample exhibited a smaller increase in self-regulatory utterances under failure. In contrast, the combined sample decreased self-regulatory verbalizations under failure only under methylphenidate. The results support some differences between the two subtypes of ADHD in executive functioning and in their response to stimulant therapy. Portions of these results were submitted as part of H. Theresa Chang's PhD dissertation (Chang, 2000) and Helena Kopecky's unpublished master's research, both conducted at the University of Rochester and supervised by Rafael Klorman.     

Changing the Speech of Autistic Children and Their Parents

The parents of nine autistic preschool children were trained in behavior modification and operant techniques of teaching speech. The study used a multiple baseline design with Group 1 completing behavior modification training while Group 2 remained on the waiting list. Then, Group 1 entered speech training while Group 2 began behavior modification. Finally, Group 2 received speech training. Videotape assessments of parents and child were made pretreatment and after each stage of training. The tapes were coded reliably for the parents' speech oriented and non-speech oriented language and the childrens' speech and non-speech behaviors. There was no change in parental speech oriented language following behavior modification but a substantial rise in such language was noted after speech training. Both mothers and fathers changed after training, although mothers were consistently more active than fathers. Both before and after training, the parents of the more verbal children emitted more speech oriented language than the parents of the mute children. The children showed changes which paralleled those of the parents. There was no significant change in child speech after behavior modification, but a rise in children's speech was obvious when their parents completed the speech training. The verbal children accounted for the changes in the two groups since the mute children showed Iittle evidence of change. The results suggest that parents of nonverbal chiIdren can learn to modify their language behavior and that this parent training can be done in an economical group setting.     

A Simple Measure of Interviewer and Interviewee Speech Durations

A hypothesis that peer pressure affects delay-of-gratification behavior was tested by comparing the private vs. public responses of Cree children to the offer of an immediate reward or a larger delayed reward. One group of children was twice tested in private. Another group was first tested in private and then in public. In both testings approximately 65% of the control group chose an immediate reward. The experimental group, however, although preferring an immediate reward in private, in public elected to go along with the choices of their classmates, many reversing themselves and choosing a delayed rather than immediate reward.     

Auditory Distraction by Meaningless Irrelevant Speech: A Developmental Study

The irrelevant sound effect (ISE) typically refers to a disruptive effect of a to‐be‐ignored sound in serial recall tasks, where lists of visually presented items (digits and letters) must be recalled in serial order. Although extensively studied in adults, studies on developmental aspects of the ISE are scarce. The present study aims to increase our understanding of developmental changes of auditory distraction in children beyond serial recall. Two tasks (i.e., word categorization and evaluation of simple mathematical equations) were designed to test retrieval from semantic memory. Proportion correct and reaction times (adjusted for speed–accuracy tradeoff) were measured in 8–9 and 12–13‐year‐olds. Results revealed a developmental change in the susceptibility to auditory distraction. Whereas older children were not affected by background sounds, younger children showed impairment in both proportion correct and adjusted reaction times. Overall, results suggest that attention distraction and immature attention control mechanisms contribute to ISEs in young children. Copyright © 2014 John Wiley & Sons, Ltd.     

斯-欧非言语智力测验评介

斯-欧非言语智力测验1943年由荷兰女学者Snijders-Oomen编制,经多次修订后出现多个版本,目前应用最广、最新和最具代表性的是SON-R 5.5-17和SON-R 6-40两个版本。前者包含归类、拼板、隐蔽图形、连线、情境、类比和故事七个分测验,考查5.5岁到17岁人群的抽象推理、具体推理、空间、知觉四种能力。后者选取了类比、拼板、归类和连线四个分测验组成,测查6岁到40岁人群的智力。研究表明,该测验内部一致性信度、概化系数和效度均达到了心理测量学质量要求。该测验有言语指导和非言语指导两套指导语,施测使用了适应性程序,并给被试提供反馈,具有认知诊断功能,适用于测量正常和特殊群体的智力,也可用于研究文化因素对智力的影响和智力测验的公平性等问题。     

Modeling the Influence of Language Input Statistics on Children's Speech Production

We trained a computational model (the Chunk-Based Learner; CBL) on a longitudinal corpus of child–caregiver interactions in English to test whether one proposed statistical learning mechanism—backward transitional probability—is able to predict children's speech productions with stable accuracy throughout the first few years of development. We predicted that the model less accurately reconstructs children's speech productions as they grow older because children gradually begin to generate speech using abstracted forms rather than specific “chunks” from their speech environment. To test this idea, we trained the model on both recently encountered and cumulative speech input from a longitudinal child language corpus. We then assessed whether the model could accurately reconstruct children's speech. Controlling for utterance length and the presence of duplicate chunks, we found no evidence that the CBL becomes less accurate in its ability to reconstruct children's speech with age.     

The Boston Naming Test and Swedish children: Normative Data and response analysis

The present study concerns responses to the Boston Naming Test (BNT) in a sample of native Swedish-speaking children between the ages of 6 and 15. Normative data are presented not only for the number of correct responses but also for the frequency of types of substitutive responses on the BNT. The study involved 152 children and adolescents from four different grades (kindergarten, third grade, sixth grade, and ninth grade). For the sample, a normal distribution of test subjects was sought, including both linguistically weaker and stronger students from school classes in representative areas. The results for the Swedish children and adolescents were slightly lower than the American norms for the BNT. A classification was undertaken of the non-target-word responses, which showed that there were significant differences in the use of the various semantic response categories among the grades. As expected, the younger children gave more unspecific responses and also omitted more responses than the older children. Based on the results of this study, it can be maintained that despite cultural and linguistic differences, the BNT is applicable for examining the vocabulary and word retrieval abilities of native Swedish-speaking children and adolescents.     

Normative data for the Boston Naming Test in native Dutch-speaking Belgian children and the relation with intelligence

This paper reports the results of a normative study of the 60-item version of the Boston Naming Test (BNT) in a group of 371 native Dutch-speaking Flemish children between the ages of 6 and 12 years. Analysis of test results revealed that BNT performance was significantly affected by age and gender. The gathered norms were shown to be significantly lower than published norms for comparable North-American children. Error analysis disclosed remarkable similarities with data from elderly subjects, with verbal semantic paraphasias and 'don't know' responses occurring most frequently. Finally, BNT scores were shown to correlate strongly with general intelligence as measured with the Raven Progressive Matrices. The relation between both measures can be of help in the diagnosis of identification naming deficits and impaired word-retrieval capacities.     

Speech timing and working memory in profoundly deaf children after cochlear implantation

Thirty-seven profoundly deaf children between 8- and 9-years-old with cochlear implants and a comparison group of normal-hearing children were studied to measure speaking rates, digit spans, and speech timing during digit span recall. The deaf children displayed longer sentence durations and pauses during recall and shorter digit spans compared to the normal-hearing children. Articulation rates, measured from sentence durations, were strongly correlated with immediate memory span in both normal-hearing and deaf children, indicating that both slower subvocal rehearsal and scanning processes may be factors that contribute to the deaf children's shorter digit spans. These findings demonstrate that subvocal verbal rehearsal speed and memory scanning processes are not only dependent on chronological age as suggested in earlier research by. Instead, in this clinical population the absence of early auditory experience and phonological processing activities before implantation appears to produce measurable effects on the working memory processes that rely on verbal rehearsal and serial scanning of phonological information in short-term memory.     

Influence of Irrelevant Speech on Standardized Test Performance

The aim of this study was to estimate the impact of distraction on standardized test performance. The distraction investigated here was from fellow examinees who were taking a speaking test. Study participants were volunteers (N = 171) who had previously taken the Graduate Management Admission Test (GMAT), the Graduate Record Examinations (GRE) General Test, or the Test of English as a Foreign Language (TOEFL). They were invited to retake a different form of the same test under either distracting conditions or standard, distraction-free conditions. Test takers expressed strong negative perceptions about the distraction caused by fellow test takers. The impact on actual test performance, however, was slight in the GMAT sample and negligible in both the GRE and TOEFL samples. Moreover, the influence of distraction was no greater than that associated with other common, undesirable influences.     

Psychometric properties of the Test of Everyday Attention for Children in Greek-speaking school children

The present study aimed at exploring the psychometric properties of the Test of Everyday Attention for Children (TEA-Ch) in normally developing Greek-speaking school population (6–12 years old). TEA-Ch is an assessment that captures the multidimensional nature of the developing attentional system with child-friendly test tasks. The sample consisted of 174 Greek-speaking primary school children of both genders (N = 88 girls). Children were assessed individually using the TEA-Ch and two tasks (Vocabulary and Working Memory) from the Wechsler Intelligence Scale for Children-3rd edition (WISC-III)-Greek Version. Confirmatory factor analyses were conducted to examine the factorial validity of the TEA-Ch in the Greek-speaking population. The results verified both a two-factor (attentional control/switching and sustained attention) and a theory-driven three-factor structure of the TEA-Ch, namely selective attention, attentional control/switching and sustained attention. Moreover, the weak correlations of TEA-Ch tasks with vocabulary and working memory tasks provide evidence for its divergent validity and its usefulness as an additional measure of abilities that are not captured by well-known conventional intelligence tasks. Furthermore, TEA-Ch appears to be an age-sensitive assessment tool.     

Speech timing skills of normally fluent and stuttering children and adults

This study was designed to explore the speech timing skills of normally fluent and stuttering children and adults producing two sentences, ten consecutive times at basal and modified speaking rates. Spectrographic displays of subjects' utterances in both conditions were made in order to obtain consonant, vowel, pause, and utterance duration measures. Results showed that (1) the two groups of children produced speech durational values similar to those of the two adult groups and (3) there were no consistent between- and within-group differences in the basal and modified rate conditions. Findings are discussed in terms of methodological and sampling differences that exist between the present study and past research on stutterers' speech production abilities.     

The Boston Naming Test: Norm data and cue utilization in a sample of normal 6- and 7-year-old children

The object-naming abilities of 83 normal children were examined using the Boston Naming Test developed by E. Kaplan, H. Goodglass, and S. Weintraub (1976, The Boston Naming Test (experimental edition), unpublished test, Veterans Hospital, Boston, Massachusetts). There is currently a lack of available norms for this instrument, especially for populations of younger children. Cue utilization in this sample is explored and attention is focused upon possible gender differences in naming performance and cue strategies. Seven summary scores derived from the test are presented in this report. Results indicate that the Boston Naming Test can discriminate within a normal population sample of young children and provides a relatively normal distribution for six of seven derived scores. Boys were found to have a significantly greater number of items correctly named but no gender differences in cue utilization were evident. A major proportion of the children in this sample of 6- and 7-year-olds used phonological cues almost exclusively, rather than semantic cues also provided. Cue use was not related to age or spontaneously given responses, and none of the children were found to be highly proficient at using both types of cues.     

4-6岁儿童言语理解中世界知识运用能力的发展

以90名4-6岁学前儿童作为研究对象,考察了这一年龄段儿童在言语理解中对世界知识的运用能力及其发展特点。实验要求被试确定测试句中代词TA的回指名词,该回指名词需要被试依据相关的世界知识进行判断。实验发现：（1）4-6岁儿童在言语理解中对于世界知识的运用能力随年龄的增长而不断提高。（2）4岁组儿童对世界知识的运用能力水平较低,与其他两组儿童相比存在较显著的差异性;5岁组和6岁组儿童对世界知识的运用能力差异较小。（3）儿童在言语理解中对于不同类型的世界知识的运用能力存在显著性差异。与对现实生活相关的世界知识的运用能力相比,各组儿童对童话语境相关的世界知识的运用能力更为灵活。这一差异性在4-5岁组儿童表现得更为显著。     

热执行功能对儿童标准窗口任务测试的影响

主要考察热执行功能对3~4岁儿童标准窗口任务测试的影响。实验采取3×3的被试间设计。设置了3种条件：标准指示、“强化竞争”指示和无对手指示;将随机抽取的270名被试分为3个年龄段,以检测3~4儿童在窗口任务中的认知发展趋势。结果表明：⑴热执行功能也是影响3~4儿童标准窗口任务测试的一个主要因素;⑵3岁后期是3~4岁儿童在标准窗口任务中所体现出来的认知发展差异的分界年龄;⑶3~4岁儿童在窗口任务中还表现出规则推理能力的差异     

Self-image and Guilt: A Further Test of the Cognitive-Developmental Formulation

The cognitive-developmental formulation of self-image disparity holds that an increasing disparity between the real and ideal self-image is due to (a) increasing differentiation of the real from the ideal self with maturity and (b) the increased capacity for incorporation of social mores with a greater propensity for guilt as a result. Guilt and self-image disparity were assessed in 47 young adults in Study 1, and in 108 children, of varying intellectual abilities, in the 5th, 8th, and 11th grades in Study 2. In both studies, guilt was related to self-image disparity. At all age levels, guilt was related to a higher ideal self-image. Guilt was related to a higher real self-image among 5th graders, but not among older individuals. Brighter children had a higher ideal self-image, greater self-image disparity, and marginally more guilt than children of average intellectual abilities. Guilt and self-image disparity were not related to grade level. The pattern of findings indicated that self-image is influenced by both cognitive-developmental and experiential determinants.     

Screening for Specific Language Impairment in Preschool Children: Evaluating a Screening Procedure Including the Token Test

Specific language impairment (SLI) comprises impairments in receptive and/or expressive language. Aim of this study was to evaluate a screening for SLI. 61 children with SLI (SLI-children, age-range 4–6 years) and 61 matched typically developing controls were tested for receptive language ability (Token Test—TT) and for intelligence (Wechsler Preschool-and-Primary-Scale-of-Intelligence—WPPSI). Group differences were analyzed using t tests, as well as direct and stepwise discriminant analyses. The predictive value of the WPPSI with respect to TT performance was analyzed using regression analyses. SLI-children performed significantly worse on both TT and WPPSI (\(p \le .0001\)). The TT alone yielded an overall classification rate of 79%, the TT and the WPPSI together yielded an overall classification rate of 80%. TT performance was significantly predicted by verbal intelligence in SLI-children and nonverbal intelligence in controls whilst WPPSI subtest arithmetic was predictive in both groups. Without further research, the Token Test cannot be seen as a valid and sufficient tool for the screening of SLI in preschool children but rather as a tool for the assessment of more general intellectual capacities. SLI-children at this age already show impairments typically associated with SLI which indicates the necessity of early developmental support or training. Token Test performance is possibly an indicator for a more general developmental factor rather than an exclusive indicator for language difficulties.