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1.
This study examined the mechanisms underlying verbal learning in children with and without attention-deficit/hyperactivity disorder (ADHD), none of whom had reading disabilities. Children with ADHD were compared to typically developing children on both process and product scores from the California Verbal Learning Test for Children. The findings indicated that children with ADHD initially learned the same number of words as controls but showed weaknesses recalling the words after delays, suggesting that children with ADHD are less efficient learners. Regardless of ADHD status, boys and girls performed differently. Boys used semantic clustering less frequently and recalled fewer words from the middle region of the list than girls; girls also outperformed boys in terms of overall performance, despite lower verbal IQ scores. These findings show that children with ADHD can exhibit unexpected weaknesses in learning even without a formal learning disability. Gender differences in verbal learning are also illustrated.  相似文献   

2.
Twenty‐nine grade‐matched 4th–8th‐grade males, 12 with attention‐deficit/hyperactivity disorder (ADHD) (age M= 12.2 years, SD= 1.48), and 17 without (age M= 11.5, SD= 1.59), completed two working memory tasks (digit span and the Simon game) and three long‐term episodic memory tasks (a personal event memory task, story memory task, and picture recognition task). In line with clinical observations, children with ADHD performed worse than peers on all working memory tasks, but performed as well as or better than peers on long‐term episodic tasks, demonstrating particularly detailed memory for personally experienced past events. Participants' parents also completed questionnaires about their children's memories in daily life. Parents rated children with ADHD lower than children without ADHD on working and semantic memory (e.g., remembering names, spelling, and math), but rated them as high or higher on memory for events. Implications for theory and educational practice are discussed.  相似文献   

3.
We examined the information processing capabilities of children diagnosed with the inattentive subtype of attention-deficit/hyperactivity disorder (ADHD) who had been characterized as having a sluggish cognitive tempo. Children referred for school-related problems (n = 81) and nonreferred community controls (n = 149) participated. Of the referred children, 24 met criteria for ADHD, 42 met criteria for reading disability (RD), and 9 of these were comorbid for RD and ADHD. Children with ADHD differed from those without ADHD on a visual search task but not on an auditory processing task; the reverse was true for children with RD. Decomposition of the visual search task into component operations demonstrated that children in the ADHD group had a slow processing rate that was not attributable to inattention. The children with ADHD were not globally poor at information processing or inattentive, but they demonstrated diminished speed of visual processing.  相似文献   

4.
Children with attention deficit hyperactivity disorder (ADHD) were examined on four subtests of the Test of Everyday Attention for Children (TEA‐Ch) when on and off stimulant medication. Performance was assessed relative to 18 individually age‐matched controls. Children with ADHD performed significantly worse on TEA‐Ch measures when off compared to when on stimulant medication. This was found in both predominantly inattentive (n = 6) and combined inattentive and hyperactive‐impulsive (n = 12) subtypes. The age‐matched controls significantly improved with repeated testing on most TEA‐Ch measures. Significant differences were found between the unmedicated children with ADHD and age‐matched controls on sustained attention (Score! and Walk Don’t Walk) and attention control measures (Same and Opposite Worlds). When the ADHD group was on stimulant medication, with the exception of the Walk Don’t Walk subtest, no significant differences were found between them and the age‐matched controls. Unlike the TEA‐Ch subtests, the significant differences between the two groups on the Test of Word Reading Efficiency (TOWRE) subtests remained when attentional status was altered in the children with ADHD. The study supports further investigations of the TEA‐Ch as a measure sensitive to changes in stimulant medication in children with ADHD.  相似文献   

5.
In a prospective study of developmental outcomes in relation to early‐life otitis media, behavioral, cognitive, and language measures were administered to a large, diverse sample of children at 2, 3, 4, 6, and 9–11 years of age (N = 741). At 9–11 years of age, 9% of the children were categorized as having attention‐deficit/hyperactivity disorder (ADHD) based on parent report. Compared to the non‐ADHD group, the ADHD group had higher (i.e., less favorable) scores on parent and teacher versions of the Child Behavior Checklist at all ages. Children in the ADHD group also had lower scores on cognitive and receptive language measures in preschool. The findings support the concept that ADHD is a cognitive as well as a behavioral disorder.  相似文献   

6.
Reviews involving the Wechsler Scales for children suggest that Full Scale IQ scores on the Wechsler Intelligence Scale for Children, Third Edition, average 5 to 6 points lower than scores on the second edition of the scale [WISC‐R, Wechsler, D. (1974). Zimmerman & Woo‐Sam, 1997], with the differences distributed disproportionately over subtests, i.e., with larger discrepancies found within the Performance Scale (Wechsler, 1991). Changes on the revised subtests of the WISC‐III Performance Scale may place children with ADHD at a disadvantage compared to their performance on analogous WISC‐R subtests. We examined IQ test performance in 122 unmedicated children with ADHD (61 given the WISC‐R, 61 given the WISC‐III), and 46 children from a healthy, comparison group (23 given the WISC‐R, 23 given the WISC‐III). The ADHD and comparison group samples were matched for sex and for Verbal IQ between WISC‐R and WISC‐III. Children with ADHD had significantly lower Performance IQ on WISC‐III compared to the WISC‐R, with the Picture Arrangement subtest showing the most significant difference. In contrast, there were no significant differences between the WISC‐R and WISC‐III cohorts on Performance IQ or any Performance subtests among the comparison group. These findings highlight the importance of examining the comparability of ability test revisions among clinical and non‐clinical populations, and will be especially salient when the WISC‐III is revised. © 2003 Wiley Periodicals, Inc. Psychol Schs 40: 331–340, 2003.  相似文献   

7.
The present study compared 5‐ and 10‐year‐old North American and Israeli children's beliefs about the objectivity of different categories (= 109). Children saw picture triads composed of two exemplars of the same category (e.g., two women) and an exemplar of a contrasting category (e.g., a man). Children were asked whether it would be acceptable or wrong for people in a different country to consider contrasting exemplars to be the same kind. It was found that children from both countries viewed gender as objectively correct and occupation as flexible. The findings regarding race and ethnicity differed in the two countries, revealing how an essentialist bias interacts with cultural input in directing children's conceptualization of social groups.  相似文献   

8.
Although children with speech impairment are at increased risk for impaired literacy, many learn to read and spell without difficulty. Around half the children with speech impairment have delayed acquisition, making errors typical of a normally developing younger child (e.g. reducing consonant clusters so that spoon is pronounced as ‘poon’). A smaller group make disordered speech errors that are atypical of normal development (e.g. marking all consonant clusters with /f/ so bread is pronounced as ‘fed’). Profiles of surface speech errors may provide a way of identifying underlying deficits that account for differences in literacy development. This paper investigates the relationship between type of speech impairment, phonological awareness and literacy acquisition. Thirteen children, aged 5;2–7;9, with either delayed or disordered speech and six typically developing controls were compared on tasks measuring onset-rime awareness, letter knowledge, phonological rule knowledge, real and non-word reading. Children with delayed speech development performed like typically developing controls on all phonological awareness and reading measures. Children with speech disorder, who consistently made errors atypical of normal development, had difficulties on all phonological awareness tasks with the exception of syllable awareness. They showed no measurable emergent reading ability. The results suggest the need to differentiate between speech delay and disorder when planning intervention, particularly for literacy skills.  相似文献   

9.
We hypothesized that children with attention-deficit/hyperactivity disorder (ADHD) would underperform on neuropsychological tests that are sensitive to executive function impairments. We further proposed that a linear discriminant analysis using behavioral and neuropsychological variables as dependent variables would pinpoint the capability of behavioral questionnaires and neuropsychological tests to predict the correct classification of ADHD and control children. We designed a transversal study with 62 seven- to twelve-year-old children with ADHD and 62 Full Scale IQ-matched controls using two behavioral scales and 13 neuropsychological tests. Using analysis of variance and covariance with age and school achievement and multifactor analysis of variance, we found that behavioral variables established robust, statistically significant differences between groups (p < .001). Children with ADHD scored worse than controls on 31 out of 61 neuropsychological variables. Children with ADHD, however, obtained better scores that were statistically significant on WISC-R Comprehension and Picture completion. A linear discriminant analysis with nine behavioral variables correctly classified 100% of the participants in both groups. Another linear discriminant analysis using 10 neuropsychological variables correctly classified 85.48% of the participants in both groups. We propose a core battery of selected tests for assessing children with ADHD. The significance of cross-cultural analyses of different developmental disturbances is emphasized.  相似文献   

10.
The present study examines the expressive writing abilities of children described by their teachers as having Attention Deficit Hyperactivity Disorder (ADHD) symptoms and of matched controls and the effects of two types of facilitation. A group of 35 ADHD children and matched controls are given the task of composing a letter either under standard instructions or with facilitation (a guide scheme), preceded by a brief training on how to use the facilitation. Results show that both groups drew benefit from the guide scheme. Despite the fact that differences between groups were maintained after the training for the case of spelling errors, the poorer performance of ADHD children vanished. It is concluded that ADHD children have poor expressive writing skills, but this can be improved through the help of a guide scheme preceded by brief training.  相似文献   

11.
This article discusses the relationship between attention deficit-hyperactivity disorder (ADHD) and learning disability (LD). The relevant literature is outlined, and empirical data are presented from a prospective follow-up study of 600 speech/language-impaired children. The data show an increased prevalence of both LD and ADHD among children with early speech/language impairments. Furthermore, LD was strongly associated with ADHD in both the initial and follow-up samples. Also, the children with LD had increased rates of other psychiatric disorders (e.g., behavior disorders, mood disorders, anxiety disorders). The implications of these data are discussed with regard to the possible etiology of the ADHD-LD association, treatment for children with LD and ADHD, and promising hypotheses for future research.  相似文献   

12.
In mathematical word problem solving, a relatively well-established finding is that more errors are made on word problems in which the relational keyword is inconsistent instead of consistent with the required arithmetic operation. This study aimed at reducing this consistency effect. Children solved a set of compare word problems before and after receiving a verbal instruction focusing on the consistency effect (or a control verbal instruction). Additionally, we explored potential transfer of the verbal instruction to word problems containing other relational keywords (e.g., larger/smaller than) than those in the verbal instruction (e.g., more/less than). Results showed a significant pretest-to posttest reduction of the consistency effect (but also an unexpected decrement on marked consistent problems) after the experimental verbal instruction but not after the control verbal instruction. No significant effects were found regarding transfer. It is concluded that our verbal instruction was useful for reducing the consistency effect, but future research should address how this benefit can be maintained without hampering performance on marked consistent problems.  相似文献   

13.
This paper investigates the processes that predict reading acquisition. Associations between (a) scaffolding errors (e.g., “torn” misread as “town” or “tarn”), other reading errors, and later reading and (b) vowel and rime inferences and later reading were explored. To assess both of these issues, 50 6‐year‐old children were shown a number of CVC words, and word reading errors were noted. Children were then taught families of riming words that could serve as a basis for rime or vowel analogies (e.g., “bark”, “mark”, “dark” → “park” or “harm”) before attempting to read the CVCs a second time. Children’s reading ability was measured at age 6 and two years later at age 8. The results showed that, among word reading error groups, only scaffolding errors at age 6 were unique predictors of reading at age 8, after reading, vocabulary, and phonological awareness were controlled. Vowel but not rime inferences predicted reading at age 8. The results are used to inform a model of the role of phoneme awareness and grapheme use in early reading development wherein vowel inference‐use helps to specify precise representations of CVC words from preliminary scaffolding errors.  相似文献   

14.
The present study examined English-speaking children's tendency to make argument structure overgeneralization errors (e.g., I disappeared it). Children were exposed to several English verbs of fixed transitivity (exclusively intransitive or exclusively transitive) and then asked questions that encouraged them to overgeneralize usage of the verbs. Seventy-two children (24 in each of three age groups: 3, 4/5, and 8 years of age) experienced four actions performed by puppets. Each action had two verbs of similar meaning associated with it in the context of the experimental action: one more familiar to young children and one less familiar. Children at all ages were more likely to overgeneralize usage of verbs that were less familiar to them, supporting the hypothesis that children's usage of verbs in particular construction types becomes entrenched over time. As children solidly learn the transitivity status of particular verbs, they become more reluctant to use those verbs in other argument structure constructions.  相似文献   

15.
Children's Causal Explanations of Animate and Inanimate Motion   总被引:3,自引:0,他引:3  
Adults frequently refer to nonobvious, internal, or immanent causal mechanisms when explaining certain kinds of movement— such as the movement of animals (e.g., a rabbit hops because of its brain and muscles) and the self-sustained movement of artifacts (e.g., a toy moves on its own because of batteries or gears). This series of studies examined whether and when preschool children are willing to attribute internal and immanent causes to motion. In 3 studies, preschool children and adults viewed animals and artifacts (wind-up toys and transparent objects) either moving independently or being transported by a person. Children explained animal and artifact events differently, even with the kind of movement controlled: They were more likely to attribute immanent cause to animals than to artifacts and more likely to attribute human cause to artifacts than animals. Internal causes were less frequently endorsed overall; however, when asked to describe the insides of artifacts, children who saw them moving alone more often described internal mechanisms (e.g., batteries, electricity) than children who did not see them moving alone. Altogether, the studies suggest that children as young as 3 or 4 years of age honor two principles: For animals more than for artifacts, movement is caused by an immanent source, and across domains, movements without an observable agent have an internal or immanent source.  相似文献   

16.
17.
Facial recognition ability was studied with 288 children from 4 grades--first, second, third, and sixth--who also varied by sex race, and school type, the last being segregated or integrated. Children judged whether each of 40 pictures of children's faces had been present in a set of 20 pictures viewed earlier. Facial recognition ability increased significantly with each grade but leveled off between ages 8 and 11. Blacks' performance is significantly better than whites', and blacks are better at recognizing faces of whites than whites are at recognizing blacks. Children from an integrated school show smaller differences recognizing black or white faces than children from segregated schools, but the effect appears only for children of the integrated school who also live in mixed-race neighborhoods.  相似文献   

18.
19.
The present study aimed to comprehensively examine social cognition processes in children with and without learning disabilities (LD), focusing on social information processing (SIP) and complex emotional understanding capabilities such as understanding complex, mixed, and hidden emotions. Participants were 50 children with LD (age range 9.4-12.7; 35 boys, 15 girls) and 50 children without LD matched on grade, age, and gender. Children analyzed 4 social vignettes using Dodge's SIP model and completed 2 emotional recognition tasks (pictures and stories) and 4 emotional knowledge tasks, such as providing definitions and examples for 5 emotions (e.g., loneliness, pride, embarrassment). Study results demonstrated that children with LD had major difficulties in SIP processes and consistent difficulties with the different tasks in the understanding of complex emotions and in higher emotional understanding capabilities, such as understanding that 2 conflicting emotions (love and hate) can be simultaneously experienced. We discuss the implications of such difficulties for the understanding of social competence in children with LD as well as their implications for social skills intervention.  相似文献   

20.
An experiment was conducted to evaluate constructive memory in fourth-grade low-SES black and middle-SES white children. The children were read nine short passages; each passage was composed of two premise statements and a filler sentence. The children were tested by a recognition procedure. Thirty-six test sentences were presented randomly. Four sentences were associated with each passage (true premise, false premise, true inference, and false inference). Subjects were asked to make yes/no recognition decisions based on whether the test sentence was identical to a sentence presented at study. Middle-SES white children made few errors, except to true inference test sentences. This pattern of performance is consistent with the constructive view of memory. Low-SES black children also had a high error rate to true inference items. However, this outcome may not reflect constructive memory because they also had a high error rate to some of the other types of test sentences.  相似文献   

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