1
|
Kirsal AO, Kahveci G. Using varied technological agents-assisted simultaneous prompting for teaching discrete skills to children with developmental disabilities. Int J Dev Neurosci 2024; 84:190-207. [PMID: 38323379 DOI: 10.1002/jdn.10318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/09/2023] [Accepted: 01/05/2024] [Indexed: 02/08/2024] Open
Abstract
This study examines the effectiveness of combining simultaneous prompting method with small group teaching through computer projection, SMART board, tablet computer and humanoid robot to teach discrete skills to children with developmental disabilities (CDD). The study included 14 CDD aged 10-15. It utilizes a multiple probe design across behaviors and probe conditions and replicates them across subjects. Each participant is taught discrete skills within a small group teaching arrangement. The study includes daily probes, full probes, teaching sessions, generalization, and follow-up sessions. It also collects interobserver reliability and application reliability data. Graphical analysis demonstrates the effectiveness of computer-based simultaneous prompting incorporating different technologies in a small group teaching setting. Additionally, we examined differences in children's responses to different technological agents in teaching discrete skills to children with developmental disabilities. The study provided preliminary data on which of these agents is best. The results demonstrate its effectiveness by showing that participants maintained the learned behaviors and applied them to a variety of tools, equipment, and individuals in the first, third, and fourth weeks after the intervention. Additionally, the study highlights the subjects' high accuracy in acquiring behavior through observational learning. Finally, simple humanoid robots, tablets, smart SMART boards, and computer projections have been effective in teaching discrete skills to CDD, respectively.
Collapse
Affiliation(s)
- Ayten Ozkirac Kirsal
- Department of Special Education, Faculty of Education, European, University of Lefke, Lefka, Cyprus
| | - Gul Kahveci
- Department of Special Education, Faculty of Education, European, University of Lefke, Lefka, Cyprus
| |
Collapse
|
2
|
Methylation patterns within 5′-UTR of DAT1 gene as a function of allelic 3′-UTR variants and their maternal or paternal origin: May these affect the psychopathological phenotypes in children? An explorative study. Neurosci Lett 2022; 791:136916. [DOI: 10.1016/j.neulet.2022.136916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/20/2022] [Accepted: 10/11/2022] [Indexed: 11/24/2022]
|
3
|
Castro T, Mateus HE, Fonseca DJ, Forero D, Restrepo CM, Talero C, Vélez A, Laissue P. Sequence analysis of the ADRA2A coding region in children affected by attention deficit hyperactivity disorder. Neurol Sci 2013; 34:2219-22. [PMID: 24178896 DOI: 10.1007/s10072-013-1569-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 10/24/2013] [Indexed: 02/08/2023]
Abstract
Attention deficit hyperactivity disorder (ADHD) is a common neurobehavioral pathology characterized by distinct degrees of inattention, hyperactivity and impulsivity. Although ADHD etiology remains elusive, the ADRA2A candidate gene underlies a particular interest, since it participates in the prefrontal cortex regulation of executive function. Three SNPs located on 5' and 3'UTR regions of the gene have been extensively explored but none of them have been definitely validated as a predisposition or a causative sequence variation. In this study, in order to determine whether ADRA2A non-synonymous sequence variants, resulting in biochemical modifications of the protein, are a common cause of the disease we sequenced the complete ADRA2A coding region in a panel of ADHD children of Colombian origin. We identified the c.1138 C>A (p.Arg380Arg) silent substitution. We conclude that ADRA2A non-synonymous sequence variants do not cause ADHD in our sample population. We cannot formerly discard a potential role of this gene during ADHD pathogenesis since only the coding region was analysed. We hope that these results will encourage further researchers to sequence the promoter and coding regions of ADRA2A in large panels of ADHD patients from distinct ethnical origins.
Collapse
Affiliation(s)
- Taryn Castro
- Unidad de Genética. Grupo GENIUROS. Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Carrera 24 N° 63C-69, Bogotá, Colombia
| | | | | | | | | | | | | | | |
Collapse
|
4
|
Worthey EA, Raca G, Laffin JJ, Wilk BM, Harris JM, Jakielski KJ, Dimmock DP, Strand EA, Shriberg LD. Whole-exome sequencing supports genetic heterogeneity in childhood apraxia of speech. J Neurodev Disord 2013; 5:29. [PMID: 24083349 PMCID: PMC3851280 DOI: 10.1186/1866-1955-5-29] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 09/16/2013] [Indexed: 12/12/2022] Open
Abstract
Background Childhood apraxia of speech (CAS) is a rare, severe, persistent pediatric motor speech disorder with associated deficits in sensorimotor, cognitive, language, learning and affective processes. Among other neurogenetic origins, CAS is the disorder segregating with a mutation in FOXP2 in a widely studied, multigenerational London family. We report the first whole-exome sequencing (WES) findings from a cohort of 10 unrelated participants, ages 3 to 19 years, with well-characterized CAS. Methods As part of a larger study of children and youth with motor speech sound disorders, 32 participants were classified as positive for CAS on the basis of a behavioral classification marker using auditory-perceptual and acoustic methods that quantify the competence, precision and stability of a speaker’s speech, prosody and voice. WES of 10 randomly selected participants was completed using the Illumina Genome Analyzer IIx Sequencing System. Image analysis, base calling, demultiplexing, read mapping, and variant calling were performed using Illumina software. Software developed in-house was used for variant annotation, prioritization and interpretation to identify those variants likely to be deleterious to neurodevelopmental substrates of speech-language development. Results Among potentially deleterious variants, clinically reportable findings of interest occurred on a total of five chromosomes (Chr3, Chr6, Chr7, Chr9 and Chr17), which included six genes either strongly associated with CAS (FOXP1 and CNTNAP2) or associated with disorders with phenotypes overlapping CAS (ATP13A4, CNTNAP1, KIAA0319 and SETX). A total of 8 (80%) of the 10 participants had clinically reportable variants in one or two of the six genes, with variants in ATP13A4, KIAA0319 and CNTNAP2 being the most prevalent. Conclusions Similar to the results reported in emerging WES studies of other complex neurodevelopmental disorders, our findings from this first WES study of CAS are interpreted as support for heterogeneous genetic origins of this pediatric motor speech disorder with multiple genes, pathways and complex interactions. We also submit that our findings illustrate the potential use of WES for both gene identification and case-by-case clinical diagnostics in pediatric motor speech disorders.
Collapse
Affiliation(s)
- Elizabeth A Worthey
- Waisman Center, University of Wisconsin-Madison, 1500 Highland Avenue, Madison, WI, 53705, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Dodiuk-Gad R, Lerner M, Breznitz Z, Cohen-Barak E, Ziv M, Shani-Adir A, Amichai B, Zlotogorski A, Shalev S, Rozenman D. Learning disabilities in Darier's disease patients. J Eur Acad Dermatol Venereol 2013; 28:314-9. [DOI: 10.1111/jdv.12103] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 01/10/2013] [Indexed: 11/27/2022]
Affiliation(s)
- R. Dodiuk-Gad
- Department of Dermatology; Genetics Institute; Ha'emek Medical Center; Afula
| | - M. Lerner
- The Edmond J. Safra Brain Research Center for the Study of Learning Disabilities at the University of Haifa; Haifa
| | - Z. Breznitz
- The Edmond J. Safra Brain Research Center for the Study of Learning Disabilities at the University of Haifa; Haifa
| | - E. Cohen-Barak
- Department of Dermatology; Genetics Institute; Ha'emek Medical Center; Afula
| | - M. Ziv
- Department of Dermatology; Genetics Institute; Ha'emek Medical Center; Afula
| | - A. Shani-Adir
- Department of Dermatology; Genetics Institute; Ha'emek Medical Center; Afula
| | - B. Amichai
- Department of Dermatology; Sheba Medical Center; Tel-Hashomer
| | - A. Zlotogorski
- Department of Dermatology; Hadassah - Hebrew University Medical Center; Jerusalem Israel
| | - S. Shalev
- Genetics Institute; Ha'emek Medical Center; Afula
- Bruce Rappaport Faculty of Medicine; Technion; Israel Institute of Technology; Haifa
| | - D. Rozenman
- Department of Dermatology; Genetics Institute; Ha'emek Medical Center; Afula
| |
Collapse
|
6
|
Raskind WH, Peter B, Richards T, Eckert MM, Berninger VW. The genetics of reading disabilities: from phenotypes to candidate genes. Front Psychol 2013; 3:601. [PMID: 23308072 PMCID: PMC3538356 DOI: 10.3389/fpsyg.2012.00601] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 12/18/2012] [Indexed: 12/19/2022] Open
Abstract
This article provides an overview of (a) issues in definition and diagnosis of specific reading disabilities at the behavioral level that may occur in different constellations of developmental and phenotypic profiles (patterns); (b) rapidly expanding research on genetic heterogeneity and gene candidates for dyslexia and other reading disabilities; (c) emerging research on gene-brain relationships; and (d) current understanding of epigenetic mechanisms whereby environmental events may alter behavioral expression of genetic variations. A glossary of genetic terms (denoted by bold font) is provided for readers not familiar with the technical terms.
Collapse
Affiliation(s)
- Wendy H Raskind
- Department of Medicine, University of Washington Seattle, WA, USA ; Department of Psychiatry and Behavioral Sciences, University of Washington Seattle, WA, USA
| | | | | | | | | |
Collapse
|
7
|
Defects in ultrasonic vocalization of cadherin-6 knockout mice. PLoS One 2012; 7:e49233. [PMID: 23173049 PMCID: PMC3500271 DOI: 10.1371/journal.pone.0049233] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Accepted: 10/07/2012] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Although some molecules have been identified as responsible for human language disorders, there is still little information about what molecular mechanisms establish the faculty of human language. Since mice, like songbirds, produce complex ultrasonic vocalizations for intraspecific communication in several social contexts, they can be good mammalian models for studying the molecular basis of human language. Having found that cadherins are involved in the vocal development of the Bengalese finch, a songbird, we expected cadherins to also be involved in mouse vocalizations. METHODOLOGY/PRINCIPAL FINDINGS To examine whether similar molecular mechanisms underlie the vocalizations of songbirds and mammals, we categorized behavioral deficits including vocalization in cadherin-6 knockout mice. Comparing the ultrasonic vocalizations of cadherin-6 knockout mice with those of wild-type controls, we found that the peak frequency and variations of syllables were differed between the mutant and wild-type mice in both pup-isolation and adult-courtship contexts. Vocalizations during male-male aggression behavior, in contrast, did not differ between mutant and wild-type mice. Open-field tests revealed differences in locomotors activity in both heterozygote and homozygote animals and no difference in anxiety behavior. CONCLUSIONS/SIGNIFICANCE Our results suggest that cadherin-6 plays essential roles in locomotor activity and ultrasonic vocalization. These findings also support the idea that different species share some of the molecular mechanisms underlying vocal behavior.
Collapse
|
8
|
Caylak E. Biochemical and genetic analyses of childhood attention deficit/hyperactivity disorder. Am J Med Genet B Neuropsychiatr Genet 2012; 159B:613-27. [PMID: 22825876 DOI: 10.1002/ajmg.b.32077] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2012] [Accepted: 06/26/2012] [Indexed: 02/05/2023]
Abstract
Attention deficit/hyperactivity disorder (ADHD) in children is a neurobehavioral disorder characterized by inattention, hyperactivity, and/or impulsivity. The biochemical abnormalities and genetic factors play significant roles in the etiology of ADHD. These symptoms affect the behavior performance and social relationships of children in school and at home. Recently, many studies about biochemical abnormalities in ADHD have been published. Several research groups have also suggested the genetic contribution to ADHD, and attempted to identify susceptibility and candidate genes for this disorder through the genetic linkage and association studies. To date, these studies have reported substantial evidence implicating several genes (dopaminergic: DRD4, DAT1, DRD5, COMT; noradrenergic: DBH, ADRA2A; serotonergic: 5-HTT, HTR1B, HTR2A; cholinergic: CHRNA4, and central nervous system development pathway: SNAP25, BDNF) in the etiology of ADHD. Understanding the biochemistry and genetics of ADHD will allow us to provide a useful addition with other treatment procedures for ADHD.
Collapse
Affiliation(s)
- Emrah Caylak
- Department of Biochemistry, School of Health, Karatekin University, Cankiri, Turkey.
| |
Collapse
|
9
|
Laffin JJS, Raca G, Jackson CA, Strand EA, Jakielski KJ, Shriberg LD. Novel candidate genes and regions for childhood apraxia of speech identified by array comparative genomic hybridization. Genet Med 2012; 14:928-36. [PMID: 22766611 DOI: 10.1038/gim.2012.72] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE The goal of this study was to identify new candidate genes and genomic copy-number variations associated with a rare, severe, and persistent speech disorder termed childhood apraxia of speech. Childhood apraxia of speech is the speech disorder segregating with a mutation in FOXP2 in a multigenerational London pedigree widely studied for its role in the development of speech-language in humans. METHODS A total of 24 participants who were suspected to have childhood apraxia of speech were assessed using a comprehensive protocol that samples speech in challenging contexts. All participants met clinical-research criteria for childhood apraxia of speech. Array comparative genomic hybridization analyses were completed using a customized 385K Nimblegen array (Roche Nimblegen, Madison, WI) with increased coverage of genes and regions previously associated with childhood apraxia of speech. RESULTS A total of 16 copy-number variations with potential consequences for speech-language development were detected in 12 or half of the 24 participants. The copy-number variations occurred on 10 chromosomes, 3 of which had two to four candidate regions. Several participants were identified with copy-number variations in two to three regions. In addition, one participant had a heterozygous FOXP2 mutation and a copy-number variation on chromosome 2, and one participant had a 16p11.2 microdeletion and copy-number variations on chromosomes 13 and 14. CONCLUSION Findings support the likelihood of heterogeneous genomic pathways associated with childhood apraxia of speech.
Collapse
|
10
|
Shriberg LD, Lohmeier HL, Strand EA, Jakielski KJ. Encoding, memory, and transcoding deficits in Childhood Apraxia of Speech. CLINICAL LINGUISTICS & PHONETICS 2012; 26:445-82. [PMID: 22489736 PMCID: PMC3580385 DOI: 10.3109/02699206.2012.655841] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A central question in Childhood Apraxia of Speech (CAS) is whether the core phenotype is limited to transcoding (planning/programming) deficits or if speakers with CAS also have deficits in auditory-perceptual encoding (representational) and/or memory (storage and retrieval of representations) processes. We addressed this and other questions using responses to the Syllable Repetition Task (SRT) [Shriberg, L. D., Lohmeier, H. L., Campbell, T. F., Dollaghan, C. A., Green, J. R., & Moore, C. A. (2009). A nonword repetition task for speakers with misarticulations: The syllable repetition task (SRT). Journal of Speech, Language, and Hearing Research, 52, 1189-1212]. The SRT was administered to 369 individuals in four groups: (a) typical speech-language (119), (b) speech delay-typical language (140), (c) speech delay-language impairment (70), and (d) idiopathic or neurogenetic CAS (40). CAS participants had significantly lower SRT competence, encoding, memory, and transcoding scores than controls. They were 8.3 times more likely than controls to have SRT transcoding scores below 80%. We conclude that speakers with CAS have speech processing deficits in encoding, memory, and transcoding. The SRT currently has moderate diagnostic accuracy to identify transcoding deficits, the signature feature of CAS.
Collapse
|
11
|
Genetic variants of FOXP2 and KIAA0319/TTRAP/THEM2 locus are associated with altered brain activation in distinct language-related regions. J Neurosci 2012; 32:817-25. [PMID: 22262880 DOI: 10.1523/jneurosci.5996-10.2012] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recent advances have been made in the genetics of two human communication skills: speaking and reading. Mutations of the FOXP2 gene cause a severe form of language impairment and orofacial dyspraxia, while single-nucleotide polymorphisms (SNPs) located within a KIAA0319/TTRAP/THEM2 gene cluster and affecting the KIAA0319 gene expression are associated with reading disability. Neuroimaging studies of clinical populations point to partially distinct cerebral bases for language and reading impairments. However, alteration of FOXP2 and KIAA0319/TTRAP/THEM2 polymorphisms on typically developed language networks has never been explored. Here, we genotyped and scanned 94 healthy subjects using fMRI during a reading task. We studied the correlation of genetic polymorphisms with interindividual variability in brain activation and functional asymmetry in frontal and temporal cortices. In FOXP2, SNPs rs6980093 and rs7799109 were associated with variations of activation in the left frontal cortex. In the KIAA0319/TTRAP/THEM2 locus, rs17243157 was associated with asymmetry in functional activation of the superior temporal sulcus (STS). Interestingly, healthy subjects bearing the KIAA0319/TTRAP/THEM2 variants previously identified as enhancing the risk of dyslexia showed a reduced left-hemispheric asymmetry of the STS. Our results confirm that both FOXP2 and KIAA0319/TTRAP/THEM2 genes play an important role in human language development, but probably through different cerebral pathways. The observed cortical effects mirror previous fMRI results in developmental language and reading disorders, and suggest that a continuum may exist between these pathologies and normal interindividual variability.
Collapse
|
12
|
Palka C, Alfonsi M, Mohn A, Cerbo R, Guanciali Franchi P, Fantasia D, Morizio E, Stuppia L, Calabrese G, Zori R, Chiarelli F, Palka G. Mosaic 7q31 deletion involving FOXP2 gene associated with language impairment. Pediatrics 2012; 129:e183-8. [PMID: 22144704 DOI: 10.1542/peds.2010-2094] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We report on a 10-year-old patient with childhood apraxia of speech (CAS) and mild dysmorphic features. Although multiple karyotypes were reported as normal, a bacterial artificial chromosome array comparative genomic hybridization revealed the presence of a de novo 14.8-Mb mosaic deletion of chromosome 7q31. The deleted region involved several genes, including FOXP2, which has been associated with CAS. Interestingly, the deletion reported here was observed in about 50% of cells, which is the first case of mosaicism in a 7q31 deletion. Despite the presence of the deletion in only 50% of cells, the phenotype of the patient was not milder than other published cases. To date, 6 cases with a deletion of 9.1-20 Mb involving the FOXP2 gene have been reported, suggesting a new contiguous gene deletion syndrome characterized mainly by CAS caused by haploinsufficiency of the genes encompassed in the 7q critical region. This report suggests that children found with a deletion involving the FOXP2 region should be evaluated for CAS and that analysis of the FOXP2 gene including array comparative genomic hybridization should be considered in selected patients with CAS. Mosaic deletions in this area may also be considered as causative of CAS.
Collapse
Affiliation(s)
- Chiara Palka
- Department of Oral Sciences, Nano and Biotechnologies, G. D'Annunzio University, Via dei Vestini 31, 66100 Chieti, Italy.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Pasini A, D'Agati E, Pitzianti M, Casarelli L, Curatolo P. Motor examination in children with Attention-deficit/hyperactivity Disorder and Asperger Syndrome. Acta Paediatr 2012; 101:e15-8. [PMID: 21824190 DOI: 10.1111/j.1651-2227.2011.02436.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM Evaluating whether motor skills could differentiate drug-naive subjects with two neurodevelopmental disorders: Attention-Deficit Hyperactivity Disorder (ADHD) and Asperger Syndrome (AS). METHODS Thirty-six boys (12 with ADHD, 12 with AS and 12 with typical development) aged 8-12 were evaluated using the Physical and Neurological Examination for Subtle Signs. Three primary outcome variables were obtained as follows: (i) total speed of timed activities, (ii) total overflow and (iii) total dysrhythmia. RESULTS Children with AS performed more slowly than those with ADHD and healthy children independently of age and IQ. Total dysrhythmia differentiates ADHD and AS children from controls. CONCLUSION Dysfunction of the fronto-striatal-cerebellar networks related to motor control could be the physiopathological basis of the reported findings.
Collapse
Affiliation(s)
- Augusto Pasini
- Department of Neuroscience, Child Neurology and Psychiatry Unit, 'Tor Vergata' University of Rome, Italy.
| | | | | | | | | |
Collapse
|
14
|
van Loo KMJ, Martens GJM. Genetic and environmental factors in complex neurodevelopmental disorders. Curr Genomics 2011; 8:429-44. [PMID: 19412416 PMCID: PMC2647153 DOI: 10.2174/138920207783591717] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2007] [Revised: 11/07/2007] [Accepted: 11/09/2007] [Indexed: 12/14/2022] Open
Abstract
Complex neurodevelopmental disorders, such as schizophrenia, autism, attention deficit (hyperactivity) disorder, (manic) depressive illness and addiction, are thought to result from an interaction between genetic and environmental factors. Association studies on candidate genes and genome-wide linkage analyses have identified many susceptibility chromosomal regions and genes, but considerable efforts to replicate association have been surprisingly often disappointing. Here, we summarize the current knowledge of the genetic contribution to complex neurodevelopmental disorders, focusing on the findings from association and linkage studies. Furthermore, the contribution of the interaction of the genetic with environmental and epigenetic factors to the aetiology of complex neurodevelopmental disorders as well as suggestions for future research are discussed.
Collapse
Affiliation(s)
- K M J van Loo
- Department of Molecular Animal Physiology, Donders Institute for Neuroscience, Nijmegen Center for Molecular Life Sciences (NCMLS), Faculty of Science, Radboud University Nijmegen, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
| | | |
Collapse
|
15
|
SNP Variations in the 7q33 Region Containing DGKI are Associated with Dyslexia in the Finnish and German Populations. Behav Genet 2011; 41:134-40. [PMID: 21203819 DOI: 10.1007/s10519-010-9431-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 12/07/2010] [Indexed: 12/15/2022]
|
16
|
Moore MW, Tompkins CA, Dollaghan CA. Manipulating articulatory demands in non-word repetition: a 'late-8' non-word repetition task. CLINICAL LINGUISTICS & PHONETICS 2010; 24:997-1008. [PMID: 20887214 DOI: 10.3109/02699206.2010.510917] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The purpose of this paper was to examine the psychometric properties of a non-word repetition task (NRT), the Late-8 Non-word Repetition Task (L8NRT). This task was designed similarly to the NRT, but contains only Late-8 consonants to increase articulatory demands and avoid ceiling effects in studies with adolescents and adults. Thirty college students were administered the Woodcock Reading Mastery Tests-Revised/Normative Update WRMT-RNU, L8NRT and NRT. Results showed that inter- and intra-rater reliability of the L8NRT were high; split-half reliability was significant and comparable to that of the NRT. Average L8NRT scores were significantly lower than NRT scores overall and at all non-word lengths but the shortest (1 syllable). Both measures correlated significantly, at similar levels, with Total WRMT-RNU score. We conclude that the psychometric properties of the L8NRT were acceptable, but an error analysis suggested ways in which the task might be improved to better control perceptual demands and articulatory feature overlap.
Collapse
Affiliation(s)
- Michelle W Moore
- Department of Communication Science & Disorders, University of Pittsburgh, Pittsburgh, PA 15260, USA.
| | | | | |
Collapse
|
17
|
Caylak E. Neurobiological approaches on brains of children with dyslexia: review. Acad Radiol 2009; 16:1003-24. [PMID: 19406674 DOI: 10.1016/j.acra.2009.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2008] [Revised: 02/08/2009] [Accepted: 02/10/2009] [Indexed: 02/05/2023]
Abstract
Learning difficulties commonly comprise a heterogeneous group of disorders manifested by unexpected problems in some children's experiences in the academic performance arena. These problems especially comprise of a variety of disorders, which one of the most well-recognized learning difficulties is reading disability or dyslexia. The aim of this review is to explain the postmortem, structural or functional neuroimaging, and electrophysiological studies of human brains in children. The findings about these neuropathological and neurofunctional characteristics of developmental dyslexia, prospective studies beginning early in the life span and studies targeting remedial intervention will help to set the research agendas for future studies to follow.
Collapse
Affiliation(s)
- Emrah Caylak
- Department of Biochemistry and Clinical Biochemistry, Firat University, School of Medicine, Elazig, Turkey.
| |
Collapse
|
18
|
Current World Literature. Curr Opin Otolaryngol Head Neck Surg 2008; 16:292-5. [DOI: 10.1097/moo.0b013e3283041256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|