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Wu ZM, Wang P, Zhong YY, Liu Y, Liu XC, Wang JJ, Cao XL, Liu L, Sun L, Yang L, Zang YF, Qian Y, Cao QJ, Wang YF, Yang BR. The underlying neuropsychological and neural correlates of the impaired Chinese reading skills in children with attention deficit hyperactivity disorder. Eur Child Adolesc Psychiatry 2024:10.1007/s00787-024-02422-w. [PMID: 38662058 DOI: 10.1007/s00787-024-02422-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/15/2024] [Indexed: 04/26/2024]
Abstract
Impaired basic academic skills (e.g., word recognition) are common in children with Attention Deficit Hyperactivity Disorder (ADHD). The underlying neuropsychological and neural correlates of impaired Chinese reading skills in children with ADHD have not been substantially explored. Three hundred and two children with ADHD (all medication-naïve) and 105 healthy controls underwent the Chinese language skill assessment, and 175 also underwent fMRI scans (84 ADHD and 91 controls). Between-group and mediation analyses were applied to explore the interrelationships of the diagnosis of ADHD, cognitive dysfunction, and impaired reading skills. Five ADHD-related brain functional networks, including the default mode network (DMN) and the dorsal attention network (DAN), were built using predefined regions of interest. Voxel-based group-wise comparisons were performed. The ADHD group performed worse than the control group in word-level reading ability tests, with lower scores in Chinese character recognition (CR) and word chains (WS) (all P < 0.05). With full-scale IQ and sustained attention in the mediation model, the direct effect of ADHD status on the CR score became insignificant (P = 0.066). The underlying neural correlates for the orthographic knowledge (OT) and CR differed between the ADHD and the control group. The ADHD group tended to recruit more DMN regions to maintain their reading performance, while the control group seemed to utilize more DAN regions. Children with ADHD generally presented impaired word-level reading skills, which might be caused by impaired sustained attention and lower IQ. According to the brain functional results, we infer that ADHD children might utilize a different strategy to maintain their orthographic knowledge and character recognition performance.
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Affiliation(s)
- Zhao-Min Wu
- Shenzhen Childrens Hospital, Shenzhen, China.
- Shenzhen Pediatrics Institute of Shantou University Medical College, Shenzhen, China.
| | | | | | - Yun Liu
- Shenzhen Childrens Hospital, Shenzhen, China
| | | | - Jiu-Ju Wang
- Peking University Sixth Hospital/Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | | | - Lu Liu
- Peking University Sixth Hospital/Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Li Sun
- Peking University Sixth Hospital/Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Li Yang
- Peking University Sixth Hospital/Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Yu-Feng Zang
- Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Ying Qian
- Peking University Sixth Hospital/Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China.
| | - Qing-Jiu Cao
- Peking University Sixth Hospital/Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China.
| | - Yu-Feng Wang
- Peking University Sixth Hospital/Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
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Conte G, Quadrana L, Zotti L, Di Garbo A, Oliveri M. Prismatic adaptation coupled with cognitive training as novel treatment for developmental dyslexia: a randomized controlled trial. Sci Rep 2024; 14:7148. [PMID: 38531968 DOI: 10.1038/s41598-024-57499-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/19/2024] [Indexed: 03/28/2024] Open
Abstract
Despite intense and costly treatments, developmental dyslexia (DD) often persists into adulthood. Several brain skills unrelated to speech sound processing (i.e., phonology), including the spatial distribution of visual attention, are abnormal in DD and may represent possible treatment targets. This study explores the efficacy in DD of rightward prismatic adaptation (rPA), a visuomotor adaptation technique that enables visuo-attentive recalibration through shifts in the visual field induced by prismatic goggles. A digital intervention of rPA plus cognitive training was delivered weekly over 10 weeks to adolescents with DD (aged 13-17) assigned either to treatment (N = 35) or waitlist (N = 35) group. Efficacy was evaluated by repeated measures MANOVA assessing changes in working memory index (WMI), processing speed index (PSI), text reading speed, and words/pseudowords reading accuracy. rPA treatment was significantly more effective than waitlist (p ≤ 0.001; ηp2 = 0.815). WMI, PSI, and reading speed increased in the intervention group only (p ≤ 0.001, ηp2 = 0.67; p ≤ 0.001, ηp2 = 0.58; p ≤ 0.001, ηp2 = 0.29, respectively). Although modest change was detected for words and pseudowords accuracy in the waitlist group only (words: p ≤ 0.001, d = 0.17, pseudowords: p = 0.028; d = 0.27), between-group differences were non-significant. rPA-coupled cognitive training enhances cognitive and reading abilities in adolescents with DD. This innovative approach could have implications for early remedial treatment.
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Affiliation(s)
- Giulia Conte
- Child and Adolescent Neuropsychiatry Division, Department of Human Neuroscience, Sapienza University of Rome, 108 via dei Sabelli, 00185, Rome, Italy.
| | - Lauro Quadrana
- Child and Adolescent Neuropsychiatry Division, Department of Human Neuroscience, Sapienza University of Rome, 108 via dei Sabelli, 00185, Rome, Italy
| | - Lilian Zotti
- Child and Adolescent Neuropsychiatry Division, Department of Human Neuroscience, Sapienza University of Rome, 108 via dei Sabelli, 00185, Rome, Italy
| | - Agnese Di Garbo
- NeuroTeam Life & Science, 112 via della Libertà, 90143, Palermo, Italy
| | - Massimiliano Oliveri
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BiND), University of Palermo, 129 via del Vespro, 90127, Palermo, Italy
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Pereira N, Costa MA, Guerreiro M. Integrating Cognitive Factors and Eye Movement Data in Reading Predictive Models for Children with Dyslexia and ADHD-I. J Eye Mov Res 2024; 16:10.16910/jemr.16.4.6. [PMID: 38646066 PMCID: PMC11028017 DOI: 10.16910/jemr.16.4.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024] Open
Abstract
This study reports on several specific neurocognitive processes and eye-tracking predictors of reading outcomes for a sample of children with Developmental Dyslexia (DD) and At-tention-Deficit/Hyperactivity Disorder - inattentive subtype (ADHD-I) compared to typical readers. Participants included 19 typical readers, 21 children diagnosed with ADHD-I and 19 children with DD. All participants were attending 4th grade and had a mean age of 9.08 years. The psycholinguistic profile of each group was assessed using a battery of neuropsy-chological and linguistic tests. Participants were submitted to a silent reading task with lex-ical manipulation of the text. Multinomial logistic regression was conducted to evaluate the predictive capability of developing dyslexia or ADHD-I based on the following measures: (a) a linguistic model that included measures of phonological awareness, rapid naming, and reading fluency and accuracy; (b) a cognitive neuropsychological model that included measures of memory, attention, visual processes, and cognitive or intellectual functioning, and (c) an additive model of lexical word properties with manipulation of word-frequency and word-length effects through eye-tracking. The additive model in conjunction with the neuropsychological model classification improved the prediction of who develops dyslexia or ADHD-I having as baseline normal readers. Several of the neuropsychological and eye-tracking variables have power to predict the degree of reading outcomes in children with learning disabilities.
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Affiliation(s)
- Norberto Pereira
- NeuroCog - Centro Reabilitação Lesão Cerebral, Centro Linguística Universidade Lisboa (CLUL), Portugal
- RISE-HEALTH - Polo de Gestão da Escola Superior de Saúde do Instituto Politécnico do Porto, Portugal
- Escola Superior de Saúde Dr. Lopes Dias (ESALD), Portugal
- www.neurocog.pt
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Marks RA, Pollack C, Meisler SL, D'Mello AM, Centanni TM, Romeo RR, Wade K, Matejko AA, Ansari D, Gabrieli JDE, Christodoulou JA. Neurocognitive mechanisms of co-occurring math difficulties in dyslexia: Differences in executive function and visuospatial processing. Dev Sci 2024; 27:e13443. [PMID: 37675857 PMCID: PMC10918042 DOI: 10.1111/desc.13443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 08/02/2023] [Accepted: 08/14/2023] [Indexed: 09/08/2023]
Abstract
Children with dyslexia frequently also struggle with math. However, studies of reading disability (RD) rarely assess math skill, and the neurocognitive mechanisms underlying co-occurring reading and math disability (RD+MD) are not clear. The current study aimed to identify behavioral and neurocognitive factors associated with co-occurring MD among 86 children with RD. Within this sample, 43% had co-occurring RD+MD and 22% demonstrated a possible vulnerability in math, while 35% had no math difficulties (RD-Only). We investigated whether RD-Only and RD+MD students differed behaviorally in their phonological awareness, reading skills, or executive functions, as well as in the brain mechanisms underlying word reading and visuospatial working memory using functional magnetic resonance imaging (fMRI). The RD+MD group did not differ from RD-Only on behavioral or brain measures of phonological awareness related to speech or print. However, the RD+MD group demonstrated significantly worse working memory and processing speed performance than the RD-Only group. The RD+MD group also exhibited reduced brain activations for visuospatial working memory relative to RD-Only. Exploratory brain-behavior correlations along a broad spectrum of math ability revealed that stronger math skills were associated with greater activation in bilateral visual cortex. These converging neuro-behavioral findings suggest that poor executive functions in general, including differences in visuospatial working memory, are specifically associated with co-occurring MD in the context of RD. RESEARCH HIGHLIGHTS: Children with reading disabilities (RD) frequently have a co-occurring math disability (MD), but the mechanisms behind this high comorbidity are not well understood. We examined differences in phonological awareness, reading skills, and executive function between children with RD only versus co-occurring RD+MD using behavioral and fMRI measures. Children with RD only versus RD+MD did not differ in their phonological processing, either behaviorally or in the brain. RD+MD was associated with additional behavioral difficulties in working memory, and reduced visual cortex activation during a visuospatial working memory task.
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Affiliation(s)
- Rebecca A Marks
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Communication Sciences and Disorders, MGH Institute of Health Professions, Boston, Massachusetts, USA
| | - Courtney Pollack
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Steven L Meisler
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Program in Speech and Hearing Bioscience and Technology, Harvard University, Cambridge, Massachusetts, USA
| | - Anila M D'Mello
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Department of Psychology, University of Texas at Dallas, Richardson, Texas, USA
| | - Tracy M Centanni
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Psychology, Texas Christian University, Fort Worth, Texas, USA
| | - Rachel R Romeo
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Human Development and Quantitative Methodology, University of Maryland College Park, College Park, Maryland, USA
| | - Karolina Wade
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Anna A Matejko
- Department of Psychology, University of Western Ontario, London, Ontario, Canada
- Brain and Mind Institute, University of Western Ontario, London, Ontario, Canada
- Department of Psychology, Durham University, Durham, UK
| | - Daniel Ansari
- Department of Psychology, University of Western Ontario, London, Ontario, Canada
- Brain and Mind Institute, University of Western Ontario, London, Ontario, Canada
| | - John D E Gabrieli
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Joanna A Christodoulou
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Communication Sciences and Disorders, MGH Institute of Health Professions, Boston, Massachusetts, USA
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Kranz AE, Serry TA, Snow PC. Twice-exceptionality unmasked: A systematic narrative review of the literature on identifying dyslexia in the gifted child. DYSLEXIA (CHICHESTER, ENGLAND) 2024; 30:e1763. [PMID: 38232949 DOI: 10.1002/dys.1763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 11/03/2023] [Accepted: 01/04/2024] [Indexed: 01/19/2024]
Abstract
In this systematic narrative review, we synthesised the small existing body of research on children who are gifted and dyslexic (G-D) in order to investigate the claim that G-D students have a unique profile, characterised by well-masked word-level reading and spelling difficulties. Our focus was on both the cognitive and academic profiles of this subgroup of twice-exceptional (2e) children and the assessment protocols used to identify them. Findings suggest that despite having processing deficits associated with dyslexia, G-D students' gifted strengths, especially those relating to oral language, may enable them to compensate for their reading difficulties, at least to an extent that they fail to meet standard diagnostic criteria. However, G-D students also perform poorly on word-level reading, reading fluency and spelling tasks when compared with both control groups and their gifted, non-dyslexic peers, providing clear evidence of impaired achievement. Findings from this review highlight the need for (a) a more nuanced approach to the assessment of students presenting with highly discrepant profiles and (b) future research into both the cognitive and academic profiles and the instructional needs of this highly able yet poorly understood group of students, whose potential may be masked and thus underestimated in the school setting.
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Affiliation(s)
- Amanda E Kranz
- School of Education, La Trobe University, Bundoora, Australia
| | - Tanya A Serry
- School of Education, La Trobe University, Bundoora, Australia
| | - Pamela C Snow
- School of Education, La Trobe University, Bundoora, Australia
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Lee CSC. Executive functions underlie word reading and reading fluency in Chinese children with attention deficit/hyperactivity disorder, reading disabilities, and comorbid attention deficit/hyperactivity disorder and reading disabilities. Child Neuropsychol 2024; 30:60-86. [PMID: 36794401 DOI: 10.1080/09297049.2023.2179981] [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: 07/12/2022] [Accepted: 02/08/2023] [Indexed: 02/17/2023]
Abstract
The current study examined the executive function (EF) deficits and their roles in reading in one hundred and four Cantonese-speaking children with typical development, reading disabilities (RD), ADHD, and comorbid ADHD and RD (ADHD + RD). Children's EF and reading skills were measured. Analysis of variance results showed that all children with disorders manifested deficits in verbal and visuospatial short-term and working memory and behavioral inhibition. Moreover, children with ADHD and ADHD + RD also exhibited deficits in inhibition (IC and BI) and cognitive flexibility. These findings demonstrated that the EF deficits in Chinese children with RD, ADHD, and ADHD + RD are similar to those in their counterparts using alphabetic languages. However, children with ADHD + RD displayed more severe deficits in visuospatial working memory compared to children with RD and ADHD, which was inconsistent with that observed in children using alphabetic languages. Regression analysis results showed that verbal short-term memory was a significant predictor for both word reading and reading fluency in children with RD and ADHD + RD. Moreover, behavioral inhibition significantly predicted reading fluency in children with ADHD. These findings also agreed with previous studies. Collectively, the results of the current study showed that the EF deficits and their roles in reading found in Chinese children with RD, ADHD, and ADHD + RD are mainly consistent with children using alphabetic languages. However, more studies are still needed to confirm these findings, especially comparing the severity of working memory among these three disorders.
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Affiliation(s)
- Clara Shuk-Ching Lee
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
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7
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Parhoon K, Aita SL, Mohammadi A, Roth RM. Do executive functions differentiate Iranian children with attention-deficit/hyperactivity disorder with and without comorbid obesity? Arch Clin Neuropsychol 2023; 38:1659-1670. [PMID: 37494423 DOI: 10.1093/arclin/acad053] [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] [Accepted: 06/24/2023] [Indexed: 07/28/2023] Open
Abstract
OBJECTIVE To compare multiple dimensions of executive function between children with attention-deficit/hyperactivity disorder (ADHD) with and without comorbid obesity. METHOD Participants were 90 Iranian children (ages 8-13, 50% female) who were equally dispersed across three study groups: typically developing (TD), ADHD with obesity (ADHD+O), and ADHD without obesity (ADHD-O). Study participants were administered a comprehensive battery of Iranian-adapted "cool" executive function tasks including Digit Span from the Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V), Victoria Stroop Test (VST), Wisconsin Card Sorting Test (WCST), Tower of London, and dot-probe task (i.e., a task of attentional bias). Parents completed the Children's Scale for Future Thinking Questionnaire, which assesses future-oriented cognition (e.g., saving, planning, episodic foresight, delay of gratification), aligning more with "hot" executive functions. Groups were compared using multivariate and post-hoc univariate general linear models. RESULTS Significant group effects were observed for all executive function variables, broadly with the gradient pattern of TD > ADHD-O > ADHD+O. ADHD+O had poorer performances than ADHD-O for WISC-V Digit Span (d = -0.84), WCST Categories Completed (d = -0.55) and Perseverative Responses (d = 1.15), VST Interference Errors (d = 0.83) and Interference Time (d = 1.38), and Dot-Probe Task (d = 0.84). Relative to the ADHD-O group, ADHD+O had also poorer parent-reported Prospective Memory (d = -0.62), Episodic Foresight (d = -0.63), and Delay of Gratification (d = -0.54). CONCLUSIONS Children with ADHD-O have poorer executive functioning than those without obesity. We observed stronger effects for "cool" rather than "hot" domains of executive function, though this could be due to the former being performance-based and the latter parent-reported.
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Affiliation(s)
- Kamal Parhoon
- Postdoc Researcher in Cognitive Psychology, Kharazmi University, Tehran 15719, Iran
| | - Stephen L Aita
- Department of Mental Health, VA Maine Healthcare System, Augusta ME, 04330, USA
- Department of Psychology, University of Maine, Orono, ME 04469, USA
| | - Azad Mohammadi
- Educational Neuroscience, University of Tehran, Tehran 15719, Iran
| | - Robert M Roth
- Department of Psychiatry, Dartmouth-Hitchcock Medical Center / Geisel School of Medicine at Dartmouth, Lebanon, NH 03756, USA
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Li M, Georgiou G, Kirby JR, Frijters JC, Zhao W, Wang T. Reading Fluency in Chinese Children With Reading Disabilities and/or ADHD: A Key Role for Morphology. JOURNAL OF LEARNING DISABILITIES 2023; 56:467-482. [PMID: 36314581 DOI: 10.1177/00222194221131569] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The Triangle Model of Reading proposes that phonology, orthography, and semantics are crucial to understand word reading and reading disability (RD). Morphology has been added as a binding agent to this model. However, it is unclear how these variables relate to word reading in children with attention deficit/hyperactivity disorder (ADHD) or comorbid ADHD and RD (ADHD+RD). This study examined the performance of Chinese children with RD, ADHD, or ADHD+RD in phonology, orthography, semantics, and morphology, and investigated whether morphology made an additional contribution beyond the other skills in explaining word reading fluency. Participants were 151 Grade 1 to 3 Chinese students: RD (n = 31), ADHD (n = 43), ADHD+RD (n = 27), and typically developing controls (TD, n = 50). Results indicated that children with ADHD+RD (a) showed similar performance to RD and ADHD in tone awareness, orthographic legality, and homophone morpheme awareness; (b) had similar performance to RD but worse than ADHD in phonology, semantics, and morpheme production; and (c) had more severe deficits than RD and ADHD in orthographic reversal, morpheme identification, and homograph awareness. Morphology significantly predicted word reading fluency beyond the other skills, and its predictive effect was more salient for ADHD+RD, ADHD, and TD. The findings provide evidence of both shared and additive effects of RD and ADHD. Morphology may be an important diagnostic factor in identifying Chinese reading and behavioral deficit groups and a worthwhile target for intervention.
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Affiliation(s)
- Miao Li
- University of Houston, Houston, TX, USA
| | | | | | | | - Wei Zhao
- Shaanxi Normal University, Xi'an, Shaanxi, China
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Willcutt EG, Petrill SA. Comorbidity between reading disability and ADHD in a community sample: Implications for academic, social, and neuropsychological functioning. MIND, BRAIN AND EDUCATION : THE OFFICIAL JOURNAL OF THE INTERNATIONAL MIND, BRAIN, AND EDUCATION SOCIETY 2023; 17:338-348. [PMID: 38898939 PMCID: PMC11185354 DOI: 10.1111/mbe.12393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/12/2023] [Indexed: 06/21/2024]
Abstract
To better understand the implications of comorbidity between reading disability (RD) and attention-deficit / hyperactivity disorder (ADHD), a sample of 225 participants with RD without ADHD, 139 participants with both RD and ADHD, and 1,502 children without reading or attentional difficulties was recruited through five large public school districts. In comparison to the group without RD or ADHD, both groups with RD exhibited elevations of comorbid internalizing and externalizing disorders and significant global, academic, and social impairment. However, the group with both RD and ADHD was most impaired on most measures, and analyses of neuropsychological measures indicate that the co-occurrence of RD and ADHD may be due at least in part to weaknesses in cognitive processing speed and working memory that are most severe in the comorbid group. These results indicate that psychoeducational assessments of RD should always screen for ADHD and other emotional and behavioral difficulties, and that when RD and ADHD co-occur interventions are likely to be needed for both disorders.
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Seçen Yazıcı M, Serdengeçti N, Dikmen M, Koyuncu Z, Sandıkçı B, Arslan B, Acar M, Kara E, Tarakçıoğlu MC, Kadak MT. Evaluation of p300 and spectral resolution in children with attention deficit hyperactivity disorder and specific learning disorder. Psychiatry Res Neuroimaging 2023; 334:111688. [PMID: 37517295 DOI: 10.1016/j.pscychresns.2023.111688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/11/2023] [Accepted: 07/17/2023] [Indexed: 08/01/2023]
Abstract
This study aims to examine auditory processing, P300 values and functional impairment levels among children with Attention Deficit and Hyperactivity Disorder (ADHD), Specific Learning Disorder (SLD), ADHD+SLD and healthy controls. Children with ADHD (n = 17), SLD (n = 15), ADHD+SLD (n = 15), and healthy controls (n = 15) between the ages of 7-12 were evaluated with K-SADS, Weiss Functional Impairment Rating Scale, Turgay DSM-IV Disruptive Behavior Disorders Rating Scale, The Mathematics, Reading, Writing Assessment Scale and Children's Auditory Performance Scale (CHAPS). Auditory P300 event-related potentials and Spectral-Temporally Modulated Ripple Test (SMRT) were applied. Three patient groups were found to be riskier than healthy controls according to the CHAPS. There was no significant difference between the groups in the SMRT. In post-hoc analyses of P300 parietal amplitudes, ADHD, SLD, and ADHD+SLD were found to be significantly lower than the control group. The amplitudes of the ADHD+SLD were by far the lowest. It has been shown that auditory performance skills and p300 amplitudes are lower in children diagnosed with only ADHD or SLD compared to the control group, with the lowest values observed in ADHD+SLD. This study suggests that the difficulties with attention and cognitive functions in the ADHD+SLD are more severe than ADHD and/or SLD without comorbidity.
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Affiliation(s)
- Meryem Seçen Yazıcı
- Department of Child and Adolescent Psychiatry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey.
| | - Nihal Serdengeçti
- Department of Child and Adolescent Psychiatry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Merve Dikmen
- Research Institute for Health Sciences and Technologies (SABITA), Regenerative and Restorative Medicine Research Center (REMER), Clinical Electrophysiology, Neuroimaging and Neuromodulation Lab, Istanbul Medipol University, Istanbul, Turkey; Vocational School of Health Services, Program of Electroneurophysiology, Istanbul Medipol University, Istanbul, Turkey
| | - Zehra Koyuncu
- Department of Child and Adolescent Psychiatry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Beyza Sandıkçı
- Department of Child and Adolescent Psychiatry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Büşra Arslan
- Department of Child and Adolescent Psychiatry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Melda Acar
- Department of Audiology, Faculty of Health Science, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Eyyup Kara
- Department of Audiology, Faculty of Health Science, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Mahmut Cem Tarakçıoğlu
- Department of Child and Adolescent Psychiatry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Muhammed Tayyib Kadak
- Department of Child and Adolescent Psychiatry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Anderson NJ, Rozenman M, Pennington BF, Willcutt EG, McGrath LM. Compounding Effects of Domain-General Cognitive Weaknesses and Word Reading Difficulties on Anxiety Symptoms in Youth. JOURNAL OF LEARNING DISABILITIES 2023; 56:343-358. [PMID: 35658570 PMCID: PMC9720039 DOI: 10.1177/00222194221098719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study examined whether domain-general cognitive weaknesses in processing speed (PS) or executive functioning (EF) moderate the relation between word reading scores and anxiety such that lower word reading scores in combination with lower cognitive scores are associated with higher anxiety symptoms. The sample consisted of 755 youth ages 8-16 who were recruited as part of the Colorado Learning Disabilities Research Center twins study. Lower scores on PS (R2 = .007, p = .014), EF (R2 = .009, p = .006), and word reading (R2 = .006-.008, p = .010-.032) were associated with higher anxiety scores. In addition, the word reading × cognitive interactions were significant such that lower scores on PS (R2 = .010, p = .005) or EF (R2 = .013, p = .010) combined with lower word reading were associated with higher-than-expected anxiety symptoms. Results suggest that weaknesses in PS, EF, and word reading are modestly associated with higher anxiety symptoms, and these anxiety symptoms may be compounded in youth with both PS or EF weaknesses and word reading difficulties. These findings can guide assessment approaches for identifying youth with word reading challenges who may be at increased risk for anxiety.
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Slaby RJ, Arrington CN, Malins J, Sevcik RA, Pugh KR, Morris R. Properties of white matter tract diffusivity in children with developmental dyslexia and comorbid attention deficit/hyperactivity disorder. J Neurodev Disord 2023; 15:25. [PMID: 37550628 PMCID: PMC10408076 DOI: 10.1186/s11689-023-09495-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 07/11/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Developmental dyslexia (DD) and attention deficit/hyperactivity disorder (ADHD) are highly comorbid neurodevelopmental disorders. Individuals with DD or ADHD have both been shown to have deficits in white matter tracts associated with reading and attentional control networks. However, white matter diffusivity in individuals comorbid with both DD and ADHD (DD + ADHD) has not been specifically explored. METHODS Participants were 3rd and 4th graders (age range = 7 to 11 years; SD = 0.69) from three diagnostic groups ((DD (n = 40), DD + ADHD (n = 22), and typical developing (TD) (n = 20)). Behavioral measures of reading and attention alongside measures of white matter diffusivity were collected for all participants. RESULTS DD + ADHD and TD groups differed in mean fractional anisotropy (FA) for the left and right Superior Longitudinal Fasciculus (SLF)-Parietal Terminations and SLF-Temporal Terminations. Mean FA for the DD group across these SLF tracts fell between the lower DD + ADHD and higher TD averages. No differences in mean diffusivity nor significant brain-behavior relations were found. CONCLUSIONS Findings suggest that WM diffusivity in the SLF increases along a continuum across DD + ADHD, DD, and TD.
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Affiliation(s)
- Ryan J Slaby
- Department of Psychology, Georgia State University, 140 Decatur St SE, Atlanta, GA, 30303, USA
- GSU/Georgia Tech Center for Advanced Brain Imaging, 831 Marietta St NW, Atlanta, GA, 30318, USA
- Department of Psychology, University of Milano-Bicocca, Piazza Dell' Ateneo Nuovo,1, 20126, Milan, Italy
| | - C Nikki Arrington
- Department of Psychology, Georgia State University, 140 Decatur St SE, Atlanta, GA, 30303, USA.
- GSU/Georgia Tech Center for Advanced Brain Imaging, 831 Marietta St NW, Atlanta, GA, 30318, USA.
- Georgia State University, Center for Translational Research in Neuroimaging and Data Science, 55 Park Place, 18th Floor, Atlanta, GA, 30303, USA.
| | - Jeffrey Malins
- Department of Psychology, Georgia State University, 140 Decatur St SE, Atlanta, GA, 30303, USA
- GSU/Georgia Tech Center for Advanced Brain Imaging, 831 Marietta St NW, Atlanta, GA, 30318, USA
| | - Rose A Sevcik
- Department of Psychology, Georgia State University, 140 Decatur St SE, Atlanta, GA, 30303, USA
| | - Kenneth R Pugh
- Yale University, Haskins Laboratories, 300 George Street, Suite 900, New Haven, CT, 06511, USA
| | - Robin Morris
- Department of Psychology, Georgia State University, 140 Decatur St SE, Atlanta, GA, 30303, USA
- GSU/Georgia Tech Center for Advanced Brain Imaging, 831 Marietta St NW, Atlanta, GA, 30318, USA
- Georgia State University, Center for Translational Research in Neuroimaging and Data Science, 55 Park Place, 18th Floor, Atlanta, GA, 30303, USA
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13
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Frolli A, Cerciello F, Esposito C, Ricci MC, Laccone RP, Bisogni F. Universal Design for Learning for Children with ADHD. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1350. [PMID: 37628349 PMCID: PMC10453933 DOI: 10.3390/children10081350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/24/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023]
Abstract
Attention Deficit-Hyperactivity Disorder (ADHD) is a psychiatric condition that shows developmentally inappropriate levels of inattention, hyperactivity, or impulsivity. Symptoms begin at a young age and usually include a lack of attention, poor concentration, disorganization, difficulty completing tasks, forgetfulness, and losing things. It is important to diagnose and treat the disorder at a young age so that the symptoms do not persist into adulthood and cause other comorbid conditions. Learning difficulties, motor impairment, anxiety, or depressive disorders may occur with this condition. To improve the academic careers of children with ADHD, we focused on a specific innovative educational approach (Universal Design for Learning) that could improve basic learning skills (reading, writing, and arithmetic skills) to prevent or manage any learning difficulty that could occur with ADHD. The Universal Design for Learning is an individualized approach that combines current neuroscientific knowledge, creating personalized teaching based on the strengths and weaknesses of the student. The goal of this study is to analyze the impact that this approach has on basic learning abilities. We found that both interventions led to improvements in test performance, indicating that interventions were necessary to enhance reading, writing, and arithmetic skills. Furthermore, the group that received an educational intervention based on Universal Design for Learning demonstrated a more significant improvement in these areas. Additionally, we propose that the set of techniques implemented by teachers in the classroom helped children to read, write, and perform math tasks correctly and more fluently.
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Affiliation(s)
- Alessandro Frolli
- Disability Research Centre of Rome University of International Studies, 00147 Rome, Italy; (F.C.); (C.E.); (R.P.L.); (F.B.)
| | - Francesco Cerciello
- Disability Research Centre of Rome University of International Studies, 00147 Rome, Italy; (F.C.); (C.E.); (R.P.L.); (F.B.)
| | - Clara Esposito
- Disability Research Centre of Rome University of International Studies, 00147 Rome, Italy; (F.C.); (C.E.); (R.P.L.); (F.B.)
| | - Maria Carla Ricci
- FINDS—Italian Neuroscience and Developmental Disorders Foundation, 81040 Caserta, Italy;
| | - Rossana Pia Laccone
- Disability Research Centre of Rome University of International Studies, 00147 Rome, Italy; (F.C.); (C.E.); (R.P.L.); (F.B.)
| | - Fabio Bisogni
- Disability Research Centre of Rome University of International Studies, 00147 Rome, Italy; (F.C.); (C.E.); (R.P.L.); (F.B.)
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14
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Dahl-Leonard K, Hall C, Capin P, Solari EJ, Demchak A, Therrien WJ. Examining fidelity reporting within studies of foundational reading interventions for elementary students with or at risk for dyslexia. ANNALS OF DYSLEXIA 2023; 73:288-313. [PMID: 36701045 DOI: 10.1007/s11881-023-00279-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 01/04/2023] [Indexed: 06/08/2023]
Abstract
Early access to evidence-based reading intervention improves outcomes for students with or at risk for reading difficulties. Additionally, teacher implementation of reading interventions plays a key role in the efficacy of reading interventions. Previous research suggests the influence of intervention implementation fidelity on student language and literacy outcomes is more significant for lower-performing students and students with disabilities, such as dyslexia. However, recent syntheses have suggested that less than half of reading intervention studies report treatment fidelity data. This meta-analysis examined fidelity reporting within reading intervention studies for students with or at risk for dyslexia in Grades K-5. We aimed to record the frequency and extent of fidelity reporting, explore associations between study or intervention features and fidelity reporting, and compare mean intervention effect sizes for studies reporting fidelity and those that did not. A total of 51 studies were included. Results indicated that 75% of studies reported fidelity data. Studies reporting fidelity primarily focused on adherence and dosage data with little to no information reported for other dimensions of fidelity (i.e., quality, responsiveness, differentiation). Suggestions for improving reporting of treatment fidelity data are discussed.
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Affiliation(s)
- Katlynn Dahl-Leonard
- Department of Curriculum, Instruction, and Special Education, University of Virginia, Charlottesville, VA, USA.
| | - Colby Hall
- Department of Curriculum, Instruction, and Special Education, University of Virginia, Charlottesville, VA, USA
| | - Philip Capin
- Meadows Center for Preventing Educational Risk, University of Texas at Austin, Austin, TX, USA
| | - Emily J Solari
- Department of Curriculum, Instruction, and Special Education, University of Virginia, Charlottesville, VA, USA
| | - Alisha Demchak
- Department of Curriculum, Instruction, and Special Education, University of Virginia, Charlottesville, VA, USA
| | - William J Therrien
- Department of Curriculum, Instruction, and Special Education, University of Virginia, Charlottesville, VA, USA
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15
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Wakeman HN, Wadsworth SJ, Olson RK, DeFries JC, Pennington BF, Willcutt EG. Mathematics Difficulties and Psychopathology in School-Age Children. JOURNAL OF LEARNING DISABILITIES 2023; 56:116-131. [PMID: 35466804 DOI: 10.1177/00222194221084136] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study investigated the relationship between mathematics difficulties and psychopathology in a large community sample (N = 881) of youth (8-18 years of age) in the United States. The primary aims of the study were to (a) test the associations between mathematics difficulties and specific components of internalizing, externalizing, attention, and social problems; (b) examine potential age and gender differences; and (c) investigate the longitudinal relationship between mathematics and psychopathology using 5-year follow-up data. Results indicated that individuals with mathematics difficulties exhibited elevations in most dimensions of psychopathology, including anxiety, depression, externalizing behaviors, attention problems, and social problems. Furthermore, mathematics impairment was associated with internalizing problems, rule-breaking behaviors, inattention, and social problems even after controlling for comorbid reading difficulties. Results suggested that the associations between mathematics and psychopathology are generally similar in males and females. Finally, preliminary longitudinal evidence suggested that initial mathematics difficulties predicted elevations of conduct disorder, rule-breaking behavior, inattention, hyperactivity, and social problems at follow-up, with several of these associations remaining significant even after controlling for initial reading. In contrast, there was no significant association between initial mathematics ability and internalizing symptoms at follow-up, demonstrating some amelioration of internalizing symptoms over time.
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16
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Zhou W, Fan Y, Chang Y, Liu W, Wang J, Wang Y. Pathogenesis of Comorbid ADHD and Chinese Developmental Dyslexia: Evidence From Eye-Movement Tracking and Rapid Automatized Naming. J Atten Disord 2023; 27:294-306. [PMID: 36461680 DOI: 10.1177/10870547221140858] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
BACKGROUND ADHD and Chinese developmental dyslexia (DD) have a very high comorbidity rate; however, which cognitive deficits characterize the comorbidity and when they occur during cognitive processing are still under debate. METHODS Rapid automatic naming (RAN) tasks with eye-movement tracking were conducted with 75 children who were typically developing, had comorbid ADHD and DD, had only ADHD, and had only DD. RESULTS The clinical groups had longer first fixation durations than the control for RAN digits. Temporal eye-movement measures, such as gaze duration and total reading time, were found to vary between the comorbidity and ADHD groups. Spatial eye-movement measures, such as regression probability and incoming saccade amplitude, differed between the comorbidity and DD groups. CONCLUSIONS These results indicate that investigation with eye-movement measures combined with RAN tasks can strengthen the understanding of the pathogenesis of comorbid ADHD and DD.
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Affiliation(s)
- Wei Zhou
- Capital Normal University, Beijing, China.,Chinese Institute for Brain Research, Beijing, China
| | - Yi Fan
- Capital Normal University, Beijing, China
| | - Yulin Chang
- China Rehabilitation Research Center for Hearing and Speech Impairment, Beijing, China
| | | | - Jiuju Wang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,NHC Key Laboratory of Mental Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Yufeng Wang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,NHC Key Laboratory of Mental Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
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17
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Investigation of the forkhead box protein P2 gene by the next-generation sequence analysis method in children diagnosed with specific learning disorder. Psychiatr Genet 2023; 33:8-19. [PMID: 36617742 DOI: 10.1097/ypg.0000000000000326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE It was aimed to investigate the role of the forkhead box protein P2 (FOXP2) gene in the cause of specific learning disorder (SLD) with the next-generation sequencing method. MATERIAL AND METHODS The study included 52 children diagnosed with SLD and 46 children as control between the ages of 6-12 years. Interview Schedule for Affective Disorders and Schizophrenia for School-Age Children, Present and Lifelong Version in Turkish, Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV)-Based Screening and Evaluation Scale for Attention Deficit and Disruptive Behavior Disorders, Specific Learning Disability Test Battery were applied to all participants. The FOXP2 gene was screened by the next-generation sequencing (NGS) method in all participants. RESULTS A total of 17 variations were detected in the FOXP2 gene in participants. The number and diversity of variations were higher in the patient group. In the patient group, c.1914 + 8A>T heterozygous variation and three different types of heterozygous variation (13insT, 13delT and 4dup) in the c.1770 region were detected. It was found that the detected variations showed significant relationships with the reading phenotypes determined by the test battery. CONCLUSION It was found that FOXP2 variations were seen more frequently in the patient group. Some of the detected variations might be related to the clinical phenotype of SLD and variations found in previous studies from different countries were not seen in Turkish population. Our study is the first to evaluate the role of FOXP2 gene variations in children with SLD in Turkish population, and novel variations in the related gene were detected.
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18
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Lee MM, Drury BC, McGrath LM, Stoodley CJ. Shared grey matter correlates of reading and attention. BRAIN AND LANGUAGE 2023; 237:105230. [PMID: 36731345 PMCID: PMC10153583 DOI: 10.1016/j.bandl.2023.105230] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 05/04/2023]
Abstract
Disorders of reading (developmental dyslexia) and attention (ADHD) have a high rate of comorbidity (25-40%), yet little is known about the neural underpinnings of this phenomenon. The current study investigated the shared and unique neural correlates of reading and attention in 330 typically developing children ages 8-18 from the Philadelphia Neurodevelopmental Cohort. Multiple regression analyses were used to identify regions of the brain where grey matter (GM) volume was associated with reading or attention scores (p < 0.001, cluster FDR p < 0.05). Better attention scores correlated with increased GM in the precuneus and higher reading scores were associated with greater thalamic GM. An exploratory conjunction analysis (p < 0.05, k > 239) found that GM in the caudate and precuneus correlated with both reading and attention scores. These results are consistent with a recent meta-analysis which identified GM reductions in the caudate in both dyslexia and ADHD and reveal potential shared neural correlates of reading and attention.
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Affiliation(s)
- Marissa M Lee
- Department of Psychology, American University, United States; Department of Neuroscience, American University, United States
| | - Brianne C Drury
- Undergraduate Program in Neuroscience, American University, United States
| | | | - Catherine J Stoodley
- Department of Psychology, American University, United States; Department of Neuroscience, American University, United States.
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19
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Moore AL, Miller TM, Moore JJ, Ledbetter C. A Real-World Data Study on the Impact of the ReadRx Cognitive Training and Reading Intervention on Cognition, Basic Reading Ability, and Psychosocial Skills for 3527 Children. Psychol Res Behav Manag 2023; 16:1195-1220. [PMID: 37095847 PMCID: PMC10121472 DOI: 10.2147/prbm.s397665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 04/11/2023] [Indexed: 04/26/2023] Open
Abstract
Background The state of reading proficiency among children in the United States continues to be a subject of concern among psychologists, teachers, parents, policy makers, and the education community at large. Despite the widespread use of curricular methods that teach basic reading skills, there remains a large percentage of children that struggle to read. Therefore, novel approaches to reading remediation should be explored. Purpose The aims of this study were to examine 1) the effect of a multicomponent cognitive and reading intervention on cognitive and reading skills; 2) the role of ADHD, age, sex, IQ score, and individual cognitive skills on the effectiveness of the ReadRx intervention; and 3) parent-reported behavioral outcomes following the ReadRx intervention. Methods The current study analyzed a large real-world dataset to examine cognitive, reading, and behavioral outcomes for struggling readers (n = 3527) who had completed 24 weeks (120 hours) of intense cognitive training integrated with a structured literacy intervention using ReadRx in a one-on-one clinic setting. Results Analyses of pretest and post-test scores showed statistically significant changes on all cognitive and reading measures including attention, visual processing, processing speed, long-term memory, working memory, reasoning, phonological awareness, Work Attack, phonetic coding, spelling, comprehension, and overall IQ score with medium to very large effect sizes. The results included an average 4.1-year gain in reading skills including a 6-year gain in phonological awareness. No differences were found based on age, sex, or ADHD status, and minimal differences were found based on pre-intervention IQ score and cognitive test scores. The study also included a qualitative thematic analysis of parent-reported behavioral outcomes revealing themes of improved cognition, academic performance, and psychosocial skills including confidence and perseverance. Conclusion Our findings were consistent with previous controlled studies on this intervention and offer an encouraging alternative instructional approach to reading remediation that aligns with the Science of Reading and includes intensive remediation of underlying cognitive skills.
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Affiliation(s)
- Amy Lawson Moore
- Department of Psychology, Gibson Institute of Cognitive Research, Colorado Springs, CO, USA
- Correspondence: Amy Lawson Moore, Gibson Institute of Cognitive Research, 5085 List Drive, Suite 200-A, Colorado Springs, CO, 80919, USA, Tel +1 719-219-0940, Email
| | - Terissa M Miller
- Department of Psychology, Gibson Institute of Cognitive Research, Colorado Springs, CO, USA
| | - Jeffrey J Moore
- Department of Psychology, Gibson Institute of Cognitive Research, Colorado Springs, CO, USA
| | - Christina Ledbetter
- Department of Psychology, Gibson Institute of Cognitive Research, Colorado Springs, CO, USA
- Department of Neurosurgery, Louisiana State University Health, Shreveport, LA, USA
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20
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Chan ES, Shero JA, Hand ED, Cole AM, Gaye F, Spiegel JA, Kofler MJ. Are Reading Interventions Effective for At-Risk Readers with ADHD? A Meta-Analysis. J Atten Disord 2023; 27:182-200. [PMID: 36278436 PMCID: PMC9913889 DOI: 10.1177/10870547221130111] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Utilizing a multi-level meta-analytic approach, this review is the first to systematically quantify the efficacy of reading interventions for school-aged children with ADHD and identify potential factors that may increase the success of reading-related interventions for these children. METHOD 18 studies (15 peer-reviewed articles, 3 dissertations) published from 1986 to 2020 (N = 564) were meta-analyzed. RESULTS Findings revealed reading interventions are highly effective for improving reading skills based on both study-developed/curriculum-based measures (g = 1.91) and standardized/norm-referenced achievement tests (g = 1.11) in high-quality studies of children with rigorously-diagnosed ADHD. Reading interventions that include at least 30 hours of intervention targeting decoding/phonemic awareness meet all benchmarks to be considered a Level 1 (Well-Established) Evidence-Based Practice with Strong Research Support for children with ADHD based on clinical and special education criteria. CONCLUSIONS Our findings collectively indicate that reading interventions should be the first-line treatment for reading difficulties among at-risk readers with ADHD.
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21
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Meisler SL, Gabrieli JDE. Fiber-specific structural properties relate to reading skills in children and adolescents. eLife 2022; 11:e82088. [PMID: 36576253 PMCID: PMC9815823 DOI: 10.7554/elife.82088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022] Open
Abstract
Recent studies suggest that the cross-sectional relationship between reading skills and white matter microstructure, as indexed by fractional anisotropy, is not as robust as previously thought. Fixel-based analyses yield fiber-specific micro- and macrostructural measures, overcoming several shortcomings of the traditional diffusion tensor model. We ran a whole-brain analysis investigating whether the product of fiber density and cross-section (FDC) related to single-word reading skills in a large, open, quality-controlled dataset of 983 children and adolescents ages 6-18. We also compared FDC between participants with (n = 102) and without (n = 570) reading disabilities. We found that FDC positively related to reading skills throughout the brain, especially in left temporoparietal and cerebellar white matter, but did not differ between reading proficiency groups. Exploratory analyses revealed that among metrics from other diffusion models - diffusion tensor imaging, diffusion kurtosis imaging, and neurite orientation dispersion and density imaging - only the orientation dispersion and neurite density indexes from NODDI were associated (inversely) with reading skills. The present findings further support the importance of left-hemisphere dorsal temporoparietal white matter tracts in reading. Additionally, these results suggest that future DWI studies of reading and dyslexia should be designed to benefit from advanced diffusion models, include cerebellar coverage, and consider continuous analyses that account for individual differences in reading skill.
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Affiliation(s)
- Steven Lee Meisler
- Program in Speech and Hearing Bioscience and Technology, Harvard Medical SchoolBostonUnited States
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22
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Caldani S, Acquaviva E, Moscoso A, Peyre H, Delorme R, Bucci MP. Reading performance in children with ADHD: an eye-tracking study. ANNALS OF DYSLEXIA 2022; 72:552-565. [PMID: 35920972 DOI: 10.1007/s11881-022-00269-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Reading disabilities have a profound impact on the academic performance and achievement of children. Although oculomotor pattern abnormalities during reading in children with dyslexia are well known, those in individuals with attention deficit and hyperactive disorders (ADHD) - who also frequently exhibit a reading impairment - remain largely undetermined. The objective of the present study was to evaluate the peculiarities of oculomotor pattern abnormalities during a reading task. An eye-tracker was used to record eye movements in four distinct groups of children with neurodevelopmental disorders: children with dyslexia, children with ADHD with and without comorbid dyslexia, and in a group of typically developing children (TD). Ninety-six children participated in the study (24 children per group, IQ- and age-matched groups). The duration of fixation, the total reading time, and the number of forward and backward saccades were similar in children with dyslexia and ADHD + dyslexia, but were significantly different from those observed in children with ADHD and with TD. Our findings suggest a link between dyslexia and oculomotor reading impairments in both children with dyslexia and children with ADHD + dyslexia, indicating that the oculomotor pattern in children with ADHD without comorbid dyslexia is similar to that observed in TD children. We suggest that an objective eye movement recording during a reading task could help clinicians to better evaluate the possible presence of comorbid dyslexia in children with ADHD. Furthermore, children with ADHD with and without comorbid dyslexia could also have working memory deficiencies. Further studies are needed to confirm this finding.
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Affiliation(s)
- Simona Caldani
- UMR 7114, MoDyCo, CNRS Université Paris Nanterre, 92001, Nanterre, France
- Centre for the Functional Exploration of Balance in Children (EFEE), Robert Debré Hospital, Paris, France
| | - Eric Acquaviva
- Child and Adolescent Psychiatry Department, Robert Debré Hospital, Paris, France
| | - Ana Moscoso
- Child and Adolescent Psychiatry Department, Robert Debré Hospital, Paris, France
| | - Hugo Peyre
- Child and Adolescent Psychiatry Department, Robert Debré Hospital, Paris, France
- Paris University, Paris, France
| | - Richard Delorme
- Child and Adolescent Psychiatry Department, Robert Debré Hospital, Paris, France
- Paris University, Paris, France
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
| | - Maria Pia Bucci
- UMR 7114, MoDyCo, CNRS Université Paris Nanterre, 92001, Nanterre, France.
- Centre for the Functional Exploration of Balance in Children (EFEE), Robert Debré Hospital, Paris, France.
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23
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Toffalini E, Buono S, Cornoldi C. The structure, profile, and diagnostic significance of intelligence in children with ADHD are impressively similar to those of children with a specific learning disorder. RESEARCH IN DEVELOPMENTAL DISABILITIES 2022; 129:104306. [PMID: 35863174 DOI: 10.1016/j.ridd.2022.104306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/21/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
This study examines the structure, profile, and diagnostic significance of intelligence in a group of 948 children diagnosed with attention deficit/hyperactivity disorder (ADHD) assessed with the WISC-IV and compared with children with specific learning disorders (SLDs) and with typically developing children. Based on four indexes, the WISC-IV configuration found in TD resulted applicable to ADHD, but with generally lower loadings on g. The Perceptual Reasoning and Verbal Comprehension indexes not only had higher loadings compared to the other two indexes but also represented the relative strengths of children with ADHD, as previously observed for children with SLD. In fact, the WISC pattern could be successfully used for discriminating between ADHD and TD, but not between ADHD and SLD. The latter result was not due to a co-occurrence of a learning disorder because the presence or absence of an associated diagnosis of SLD negligibly affected the pattern observed in ADHD. We concluded that the characteristics of intelligence in children with ADHD can be relevant for assessing this disorder, and that ADHD and SLDs share largely similar underlying cognitive features.
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Affiliation(s)
| | | | - Cesare Cornoldi
- Department of General Psychology, University of Padua, Italy.
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24
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Arnett AB, McGrath LM, Flaherty BP, Pennington BF, Willcutt E. Heritability and Clinical Characteristics of Neuropsychological Profiles in Youth With and Without Elevated ADHD Symptoms. J Atten Disord 2022; 26:1422-1436. [PMID: 35102766 PMCID: PMC9283222 DOI: 10.1177/10870547221075842] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE In the last decade, there has been an increase in research that aims to parse heterogeneity in attention deficit hyperactivity disorder (ADHD). The current study tests heritability of latent class neuropsychological subtypes. METHOD Latent class analysis was used to derive subtypes in a sample of school-age twins (N = 2,564) enriched for elevated ADHD symptoms. RESULTS Five neuropsychological profiles replicated across twin 1 and twin 2 datasets. Latent class membership was heritable overall, but heritability varied by profile and was lower than heritability of ADHD status. Variability in neuropsychological performance across domains was the strongest predictor of elevated ADHD symptoms. Neuropsychological profiles showed distinct associations with age, psychiatric symptoms and reading ability. CONCLUSION Neuropsychological profiles are associated with unique neurocognitive presentations, but are not strong candidate endophenotypes for ADHD diagnosis.
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Affiliation(s)
- Anne B. Arnett
- Division of Developmental Medicine, Boston Children’s Hospital, Brookline, MA
| | | | | | | | - Erik Willcutt
- Department of Psychology and Neuroscience, University of Colorado at Boulder, Boulder, CO
- Institute for Behavioral Genetics, University of Colorado at Boulder, Boulder, CO
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25
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Braid J, Richlan F. The Functional Neuroanatomy of Reading Intervention. Front Neurosci 2022; 16:921931. [PMID: 35784836 PMCID: PMC9243375 DOI: 10.3389/fnins.2022.921931] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/31/2022] [Indexed: 11/29/2022] Open
Abstract
The present article reviews the literature on the brain mechanisms underlying reading improvements following behavioral intervention for reading disability. This includes evidence of neuroplasticity concerning functional brain activation, brain structure, and brain connectivity related to reading intervention. Consequently, the functional neuroanatomy of reading intervention is compared to the existing literature on neurocognitive models and brain abnormalities associated with reading disability. A particular focus is on the left hemisphere reading network including left occipito-temporal, temporo-parietal, and inferior frontal language regions. In addition, potential normalization/compensation mechanisms involving right hemisphere cortical regions, as well as bilateral sub-cortical and cerebellar regions are taken into account. The comparison of the brain systems associated with reading intervention and the brain systems associated with reading disability enhances our understanding of the neurobiological basis of typical and atypical reading development. All in all, however, there is a lack of sufficient evidence regarding rehabilitative brain mechanisms in reading disability, which we discuss in this review.
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Pereira N, Costa MA, Guerreiro M. Effects of word length and word frequency among dyslexic, ADHD-I and typical readers. J Eye Mov Res 2022; 15:10.16910/jemr.15.1.1. [PMID: 37009492 PMCID: PMC10063363 DOI: 10.16910/jemr.15.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
This study aimed to investigate the neuropsycholinguistic functioning of children with Developmental Dyslexia (DD) and Attention-Deficit/Hyperactivity Disorder - inattentive subtype (ADHD-I) in a reading task. The psycholinguistic profile of both groups was assessed using a battery of neuropsychological and linguistic tests and compared to typical readers. Participants were submitted to a silent reading task with lexical manipulation of the text. Eye movements were recorded and compared aiming to find cognitive processes involved in reading that could help differentiate groups. The study examined whether word-frequency and word-length effects distinguish between groups. Participants included 19 typical readers, 21 children diagnosed with ADHD-I and 19 children with DD. All participants were attending 4th grade and had a mean age of 9.08 years. Children with DD and ADHDI exhibited significant different cognitive and linguistic profiles on almost all measures evaluated when compared to typical readers. The effects of word length and word frequency interaction also differed significantly in the 3 experimental groups. The results support the multiple cognitive deficits theory. While the shared deficits support the evidence of a phonological disorder present in both conditions, the specific ones corroborate the hypothesis of an oculomotor dysfunction in DD and a visuo-spatial attention dysfunction in ADHD.
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Affiliation(s)
- Norberto Pereira
- NeuroCog - Centro de Reabilitação da Lesão Cerebral
- Center of Linguistics, School of Arts and Humanities, University of Lisbon
- Escola Superior de Saúde Dr. Lopes Dias (ESALD)
| | | | - Manuela Guerreiro
- Instituto Medicina Molecular, Faculty of Medicine, University of Lisbon
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27
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Carlsson R, Svensson I, Jacobson C, Warkentin S. Linking aberrant pauses during object naming to letter and word decoding speed in elderly with attention complaints. NORDIC PSYCHOLOGY 2022. [DOI: 10.1080/19012276.2022.2075438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- R. Carlsson
- Department of Psychology, Linnaeus University, Växjö, Sweden
| | - I. Svensson
- Department of Psychology, Linnaeus University, Växjö, Sweden
| | - C. Jacobson
- Department of Psychology, Linnaeus University, Växjö, Sweden
| | - S. Warkentin
- Department of Psychology, Linnaeus University, Växjö, Sweden
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28
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Dissociating Executive Function and ADHD Influences on Reading Ability in Children with Dyslexia. Cortex 2022; 153:126-142. [DOI: 10.1016/j.cortex.2022.03.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 01/24/2022] [Accepted: 03/04/2022] [Indexed: 11/19/2022]
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29
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Hedenius M, Persson J. Neural correlates of sequence learning in children with developmental dyslexia. Hum Brain Mapp 2022; 43:3559-3576. [PMID: 35434881 PMCID: PMC9248315 DOI: 10.1002/hbm.25868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 03/31/2022] [Accepted: 03/31/2022] [Indexed: 12/02/2022] Open
Abstract
Developmental Dyslexia (DD) is a condition in which reading accuracy and/or fluency falls substantially below what is expected based on the individuals age, general level of cognitive ability, and educational opportunities. The procedural circuit deficit hypothesis (PDH) proposes that DD may be largely explained in terms of alterations of the cortico‐basal ganglia procedural memory system (in particular of the striatum) whereas the (hippocampus‐dependent) declarative memory system is intact, and may serve a compensatory role in the condition. The present study was designed to test this hypothesis. Using Magnetic Resonance Imaging, we examined the functional and structural brain correlates of sequence‐specific procedural learning (SL) on the serial reaction time task, in 17 children with DD and 18 typically developing (TD) children. The study was performed over 2 days with a 24‐h interval between sessions. In line with the PDH, the DD group showed less activation of the striatum during the processing of sequential statistical regularities. These alterations predicted the amount of SL at day 2, which in turn explained variance in children's reading fluency. Additionally, reduced hippocampal activation predicted larger SL gains between day 1 and day 2 in the TD group, but not in the DD group. At the structural level, caudate nucleus volume predicted the amount of acquired SL at day 2 in the TD group, but not in the DD group. The findings encourage further research into factors that promote learning in children with DD, including through compensatory mechanisms.
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Affiliation(s)
- Martina Hedenius
- Department of Public Health and Caring Sciences, Speech-Language Pathology, Uppsala University, Uppsala, Sweden.,Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research, Department of Women's and Children's Health, Karolinska Institutet and Child and Adolescent Psychiatry, Stockholm Health Care Services, Region Stockholml, Stockholm County Council, BUP-FOU Centrum, Gävlegatan, Stockholm, Sweden
| | - Jonas Persson
- Aging Research Center (ARC), Karolinska Institutet and Stockholm University, Solna, Sweden.,Center for Lifespan Developmental Research (LEADER), School of Law, Psychology, and Social Work, Örebro University, Örebro, Sweden
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30
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Colvin MK, Forchelli GA, Reese KL, Capawana MR, Beery CS, Murphy J, Doyle AE, O'Keefe SM, Braaten EB. Neuropsychology consultation to identify learning disorders in children and adolescents: a proposal based on lessons learned during the COVID-19 pandemic. Child Neuropsychol 2022; 28:671-688. [PMID: 35073818 DOI: 10.1080/09297049.2021.2005010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Learning disorders are common neurodevelopmental conditions, occurring both idiopathically and in the context of other medical conditions. They are frequently comorbid with other neurodevelopmental and psychiatric conditions. Delayed identification and treatment have been associated with significant negative psychosocial consequences. The need for pediatric neuropsychologists to efficiently screen for learning disorders is likely to increase in the months and years following the COVID-19 pandemic, which has severely disrupted access to educational services, especially for children who also face racial and economic disparities. In this paper, we describe a consultation model that can be used to screen for learning disorders and can be completed using both in-person and telemedicine visits. Implementation may result in earlier intervention for struggling children, increase access to neuropsychological services without increasing wait times for comprehensive evaluations, and provide opportunities for collaborations with other health professionals (e.g., pediatricians, therapists, psychiatrists, and neurologists).
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Affiliation(s)
- M K Colvin
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - G A Forchelli
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - K L Reese
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - M R Capawana
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - C S Beery
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - J Murphy
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - A E Doyle
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA.,Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - S M O'Keefe
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - E B Braaten
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
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31
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Wakeman HN, Leopold DR, Olson RK, Willcutt EG. Modeling the Speeded Determinants of Adolescents' Academic and Attentional Functioning. Dev Neuropsychol 2022; 47:61-77. [PMID: 34894917 PMCID: PMC9332135 DOI: 10.1080/87565641.2021.2010735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The current study utilized a large, unselected sample of adolescent twins to examine whether processing speed (PS) is an important shared predictor that accounts for covariance among reading, math, ADHD, and rapid naming (RN). The best fitting model included correlated but distinguishable latent measures of PS, RN, reading, math, inattention, hyperactivity/impulsivity, and academic fluency. PS was a shared predictor across all outcomes, while RN was uniquely associated with reading, fluency, and (albeit weakly) math. The results add to a growing literature suggesting that PS and RN may be important components of comprehensive neuropsychological models of academics, ADHD, and their covariation.
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Affiliation(s)
- Holly N. Wakeman
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA,Correspondence regarding this article should be addressed to Holly N. Wakeman, M.A.; Graduate Student; ; (720) 900-4980; 1905 Colorado Ave., 345 UCB, Boulder, CO 80309
| | - Daniel R. Leopold
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA,Department of Psychiatry, University of Colorado School of Medicine, Aurora, CO, USA
| | - Richard K. Olson
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA
| | - Erik G. Willcutt
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA
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Mihaylova MS, Bocheva NB, Stefanova MD, Genova BZ, Totev TT, Racheva KI, Shtereva KA, Staykova SN. Visual noise effect on reading in three developmental disorders: ASD, ADHD, and DD. AUTISM & DEVELOPMENTAL LANGUAGE IMPAIRMENTS 2022; 7:23969415221106119. [PMID: 36382080 PMCID: PMC9620686 DOI: 10.1177/23969415221106119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND AIMS Developmental disorders such as Autism Spectrum Disorder (ASD), Attention Deficit Hyperactivity Disorder (ADHD), and Developmental Dyslexia (DD) are reported to have more visual problems, oral language difficulties, and diminished reading skills in addition to their different diagnostic features. Moreover, these conditions also have increased internal noise and probably an impaired ability of external noise filtering. The aim of the present study was to compare the reading performance of these groups in the presence of external visual noise which disrupts the automatic reading processes through the degradation of letters. METHODS Sixty-four children and adolescents in four groups, ASD, ADHD, DD, and TD, participated in the study. Two types of stimuli were used - unrelated words and pseudowords. The noise was generated by exchanging a fixed number of pixels between the black symbols and the white background distorting the letters. The task of the participants was to read aloud the words or pseudowords. The reading time for a single letter string, word or pseudoword, was calculated, and the proportion of errors was assessed in order to describe the reading performance. RESULTS The results obtained showed that the reading of unrelated words and pseudowords differs in the separate groups of participants and is affected differently by the added visual noise. In the no-noise condition, the group with TD had the shortest time for reading words and short pseudowords, followed by the group with ASD, while their reading of long pseudowords was slightly slower than that of the ASD group. The noise increase evoked variations in the reading of groups with ASD and ADHD, which differed from the no-noise condition and the control group with TD. The lowest proportion of errors was observed in readers with TD. The reading performance of the DD group was the worst at all noise levels, with the most prolonged reading time and the highest proportion of errors. At the highest noise level, the participants from all groups read the words and pseudowords with similar reading speed and accuracy. CONCLUSIONS In reading words and pseudowords, the ASD, ADHD, and DD groups show difficulties specific for each disorder revealed in a prolonged reading time and a higher proportion of errors. The dissimilarity in reading abilities of the groups with different development is most evident when the accuracy and reading speed are linked together. IMPLICATIONS The use of noise that degrades the letter structure in the present study allowed us to separate the groups with ASD, ADHD, and DD and disclose specifics in the reading process of each disorder. Error type analysis may provide a basis to improve the educational strategies by appropriately structuring the learning process of children with TD, ASD, ADHD, and DD.
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Affiliation(s)
- Milena Slavcheva Mihaylova
- Milena Slavcheva Mihaylova, Institute of
Neurobiology, Bulgarian Academy of Sciences, 23 Academic Georgi Bonchev Street,
Sofia 1113, Bulgaria.
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33
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Özgül Öğrenme Bozukluğu için Dikkat Eksikliği Hiperaktivite Bozukluğu Komorbiditesi Her Zaman Kötü Bir Durum Olmayabilir Mi? ANADOLU KLINIĞI TIP BILIMLERI DERGISI 2021. [DOI: 10.21673/anadoluklin.1018856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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34
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Interpreting Developmental Surface Dyslexia within a Comorbidity Perspective. Brain Sci 2021; 11:brainsci11121568. [PMID: 34942870 PMCID: PMC8699141 DOI: 10.3390/brainsci11121568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/19/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
Recent evidence underlines the importance of seeing learning disorders in terms of their partial association (comorbidity). The present concept paper presents a model of reading that aims to account for performance on a naturalistic reading task within a comorbidity perspective. The model capitalizes on the distinction between three independent levels of analysis: competence, performance, and acquisition: Competence denotes the ability to master orthographic–phonological binding skills; performance refers to the ability to read following specific task requirements, such as scanning the text from left to right. Both competence and performance are acquired through practice. Practice is also essential for the consolidation of item-specific memory traces (or instances), a process which favors automatic processing. It is proposed that this perspective might help in understanding surface dyslexia, a reading profile that has provoked a prolonged debate among advocates of traditional models of reading. The proposed reading model proposes that surface dyslexia is due to a defective ability to consolidate specific traces or instances. In this vein, it is a “real” deficit, in the sense that it is not due to an artifact (such as limited exposure to print); however, as it is a cross-domain defect extending to other learning behaviors, such as spelling and math, it does not represent a difficulty specific to reading. Recent evidence providing initial support for this hypothesis is provided. Overall, it is proposed that viewing reading in a comorbidity perspective might help better understand surface dyslexia and might encourage research on the association between surface dyslexia and other learning disorders.
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35
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Shero JA, Logan JAR, Petrill SA, Willcutt E, Hart SA. The Differential Relations Between ADHD and Reading Comprehension: A Quantile Regression and Quantile Genetic Approach. Behav Genet 2021; 51:631-653. [PMID: 34302587 PMCID: PMC8715540 DOI: 10.1007/s10519-021-10077-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 07/13/2021] [Indexed: 10/20/2022]
Abstract
This paper extends the understanding of the relation between ADHD and reading comprehension, through examining how this relation differs depending on the quantile an individual falls in for each. Samples from three twin projects around the United States were used (Florida Twin Project, Colorado component of International Longitudinal Twin Study of Early Reading Development, & Western Reserve Reading and Math Projects). Phenotypic analysis using quantile regression showed relations between ADHD related behaviors and reading comprehension to be stronger in the lower quantiles of reading comprehension in two of three samples. A new method was developed extending this analysis into the bivariate genetic space. Results of this quantile genetic analysis revealed that overlapping common environmental influences accounted for a larger proportion of variance in the lower quantiles of these variables in two of three samples. Finally, in all three samples the phenotypic relation was strongest when shared environmental influences accounted for a larger proportion of the overall variance.
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Affiliation(s)
- Jeffrey A Shero
- Department of Psychology, Florida State University, 1107 W. Call Street, Tallahassee, FL, 32308, USA.
| | - Jessica A R Logan
- Department of Educational Studies, The Ohio State University, Columbus, OH, USA
| | - Stephen A Petrill
- Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Erik Willcutt
- Department of Psychology, University of Colorado Boulder, Boulder, CO, USA
| | - Sara A Hart
- Department of Psychology, Florida State University, 1107 W. Call Street, Tallahassee, FL, 32308, USA
- Florida Center for Reading Research, Tallahassee, FL, USA
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36
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Holmes J, Guy J, Kievit RA, Bryant A, Mareva S, Gathercole SE. Cognitive Dimensions of Learning in Children With Problems in Attention, Learning, and Memory. JOURNAL OF EDUCATIONAL PSYCHOLOGY 2021; 113:1454-1480. [PMID: 35855686 PMCID: PMC7613068 DOI: 10.1037/edu0000644] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
A data-driven, transdiagnostic approach was used to identify the cognitive dimensions linked with learning in a mixed group of 805 children aged 5 to 18 years recognised as having problems in attention, learning and memory by a health or education practitioner. Assessments included phonological processing, information processing speed, short-term and working memory, and executive functions, and attainments in word reading, spelling, and maths. Data reduction methods identified three dimensions of phonological processing, processing speed and executive function for the sample as a whole. This model was comparable for children with and without ADHD. The severity of learning difficulties in literacy was linked with phonological processing skills, and in maths with executive control. Associations between cognition and learning were similar across younger and older children and individuals with and without ADHD, although stronger links between learning-related problems and both executive skills and processing speed were observed in children with ADHD. The results establish clear domain-specific cognitive pathways to learning that distinguish individuals in the heterogeneous population of children struggling to learn.
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Affiliation(s)
- Joni Holmes
- MRC Cognition and Brain Sciences Unit, University of Cambridge
| | - Jacalyn Guy
- MRC Cognition and Brain Sciences Unit, University of Cambridge
| | | | - Annie Bryant
- Department of Clinical Psychology, Faculty of Medicine and Health Sciences, University of East Anglia
| | - Silvana Mareva
- MRC Cognition and Brain Sciences Unit, University of Cambridge
| | - the CALM Team
- MRC Cognition and Brain Sciences Unit, University of Cambridge
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Farah R, Ionta S, Horowitz-Kraus T. Neuro-Behavioral Correlates of Executive Dysfunctions in Dyslexia Over Development From Childhood to Adulthood. Front Psychol 2021; 12:708863. [PMID: 34497563 PMCID: PMC8419422 DOI: 10.3389/fpsyg.2021.708863] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/08/2021] [Indexed: 01/18/2023] Open
Abstract
Dyslexia is a neurobiological learning disability in the reading domain that has symptoms in early childhood and persists throughout life. Individuals with dyslexia experience difficulties in academia and cognitive and emotional challenges that can affect wellbeing. Early intervention is critical to minimize the long-term difficulties of these individuals. However, the behavioral and neural correlates which predict dyslexia are challenging to depict before reading is acquired. One of the precursors for language and reading acquisition is executive functions (EF). The present review aims to highlight the current atypicality found in individuals with dyslexia in the domain of EF using behavioral measures, brain mapping, functional connectivity, and diffusion tensor imaging along development. Individuals with dyslexia show EF abnormalities in both behavioral and neurobiological domains, starting in early childhood that persist into adulthood. EF impairment precedes reading disability, therefore adding an EF assessment to the neuropsychological testing is recommended for early intervention. EF training should also be considered for the most comprehensive outcomes.
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Affiliation(s)
- Rola Farah
- Educational Neuroimaging Center, Faculty of Education in Science and Technology, Technion, Haifa, Israel
- Reading and Literacy Discovery Center and the Pediatric Neuroimaging Research Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Silvio Ionta
- Sensory-Motor Lab (SeMoLa), Department of Ophthalmology, University of Lausanne, Lausanne, Switzerland
- Jules Gonin Eye Hospital-Fondation Asile des Aveugles, Lausanne, Switzerland
| | - Tzipi Horowitz-Kraus
- Educational Neuroimaging Center, Faculty of Education in Science and Technology, Technion, Haifa, Israel
- Reading and Literacy Discovery Center and the Pediatric Neuroimaging Research Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
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38
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Cade A, Jones K, Holt K, Penkar AM, Haavik H. The Effects of Spinal Manipulation on Oculomotor Control in Children with Attention Deficit Hyperactivity Disorder: A Pilot and Feasibility Study. Brain Sci 2021; 11:brainsci11081047. [PMID: 34439666 PMCID: PMC8394036 DOI: 10.3390/brainsci11081047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/24/2021] [Accepted: 08/04/2021] [Indexed: 11/16/2022] Open
Abstract
Attention Deficit Hyperactivity Disorder (ADHD) is a prevalent, chronic neurodevelopmental disorder that affects oculomotor (eye movement) control. Dysfunctional oculomotor control may result in reading or educational difficulties. This randomized controlled crossover study sought to investigate the feasibility of a larger scale trial and effects of a single session of spinal manipulation on oculomotor control in children with ADHD. Thirty children participated in the study and were randomized into either control-first or spinal manipulation first groups. The results indicate that the trial was feasible. Secondary outcomes showed that there was a significant decrease in reading time after the spinal manipulation intervention compared to the control intervention. Future studies of the effects of spinal manipulation on oculomotor control in children with ADHD are suggested.
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Affiliation(s)
- Alice Cade
- Centre for Chiropractic Research, New Zealand College of Chiropractic, Auckland 1060, New Zealand; (K.H.); (A.M.P.); (H.H.)
- Correspondence:
| | - Kelly Jones
- National Institute for Stroke and Applied Neurosciences, Auckland University of Technology, Auckland 1142, New Zealand;
| | - Kelly Holt
- Centre for Chiropractic Research, New Zealand College of Chiropractic, Auckland 1060, New Zealand; (K.H.); (A.M.P.); (H.H.)
| | - Abdul Moiz Penkar
- Centre for Chiropractic Research, New Zealand College of Chiropractic, Auckland 1060, New Zealand; (K.H.); (A.M.P.); (H.H.)
| | - Heidi Haavik
- Centre for Chiropractic Research, New Zealand College of Chiropractic, Auckland 1060, New Zealand; (K.H.); (A.M.P.); (H.H.)
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39
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Dvorsky M, Tamm L, Denton CA, Epstein JN, Schatschneider C. Trajectories of Response to Treatments in Children with ADHD and Word Reading Difficulties. Res Child Adolesc Psychopathol 2021; 49:1015-1030. [PMID: 33772416 PMCID: PMC10568448 DOI: 10.1007/s10802-021-00815-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2021] [Indexed: 10/21/2022]
Abstract
This study investigated patterns of response to intervention in children with co-occurring attention-deficit/hyperactivity disorder (ADHD) and reading difficulties (RD), who participated in a randomized clinical trial examining the efficacy of reading intervention, ADHD treatment, or combined treatments. Growth Mixture Modeling (GMM) was used to investigate trajectories of parent and teacher academic impairment ratings and child oral reading fluency, and whether trajectories were predicted by pre-treatment covariates (ADHD severity, reading achievement, phonemic awareness, rapid letter naming, anxiety, oppositional defiant disorder), for 216 children with ADHD/RD in 2nd-5th grade (61.1% male; 72.2% African American; 8.8 ± 1.3 years of age). GMM revealed three trajectories for academic impairment (6.9-24.2% stable, 23.7-78.7% moderately improving, and 14.1-52.1% steeply improving) and oral reading fluency (20.8% low improving, 42.1% moderate improving, and 37.1% high improving). Children in the reading intervention were more likely to be in the stable or moderately improving trajectory than those in the ADHD and combined treatments, who were more likely to be in the steeply improving trajectory for academic impairment. Relative to the ADHD intervention, children in the reading intervention were more likely to be in the high improving trajectory than the moderate or low improving trajectory for oral reading fluency. Children without comorbid anxiety and with better reading skills showed a more positive treatment response for teacher-rated academic progress and oral reading fluency. Results highlight the importance of examining individual differences in response to reading and ADHD interventions. Intervention modality predicted differences in parent/teacher ratings of academic progress as well as reading fluency.
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Affiliation(s)
- Melissa Dvorsky
- Children's National Medical Center, Psychology and Behavioral Health, Washington D.C., USA
| | - Leanne Tamm
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, MLC 10006, Cincinnati, OH, USA.
- University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Carolyn A Denton
- Children's National Medical Center, Psychology and Behavioral Health, Washington D.C., USA
| | - Jeffery N Epstein
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, MLC 10006, Cincinnati, OH, USA
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
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40
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Brimo K, Dinkler L, Gillberg C, Lichtenstein P, Lundström S, Åsberg Johnels J. The co-occurrence of neurodevelopmental problems in dyslexia. DYSLEXIA (CHICHESTER, ENGLAND) 2021; 27:277-293. [PMID: 33759268 DOI: 10.1002/dys.1681] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 01/13/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
The primary aim of this study was to explore the overlaps between dyslexia and a range of neurodevelopmental disorders and problems (NDPs), specifically symptoms of attention-deficit/hyperactivity disorder, autism spectrum disorder, atypical sensory perception and developmental coordination disorder. Capitalizing on a population-based sample of twins, secondary aims included estimating the heritability of dyslexia and reporting on the measurement characteristics of the scale used to assess dyslexia. A telephone interview regarding symptoms of dyslexia and other NDPs was conducted with parents of 1,688 nine-year-old twins. The prevalence and the heritability of dyslexia were estimated at 8 and 52%, respectively. The boy: girl ratio was 1.5:1. Results revealed that there was more than an eight-fold increase in (diagnostic proxy) NDPs prevalence in the dyslexia group as compared to typical readers. Quantitatively measured symptoms of inattention, oral language problems and atypical sensory perception significantly predicted dyslexia status in a multivariate analysis. By contrast, ASD-related inflexibility was inversely associated with dyslexia in the multivariate model. In sum, dyslexia often overlaps with other NDPs. The current study provides new knowledge supporting the position to move beyond isolated diagnostic categories into behavioural profiles of co-occurring problems when trying to understand the pattern of strengths and needs in individuals with dyslexia.
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Affiliation(s)
- Katarzyna Brimo
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Lisa Dinkler
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Christopher Gillberg
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Paul Lichtenstein
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Sebastian Lundström
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Jakob Åsberg Johnels
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
- Speech and Language Pathology unit, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
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Söderlund GBW, Åsberg Johnels J, Rothén B, Torstensson-Hultberg E, Magnusson A, Fälth L. Sensory white noise improves reading skills and memory recall in children with reading disability. Brain Behav 2021; 11:e02114. [PMID: 34096202 PMCID: PMC8323032 DOI: 10.1002/brb3.2114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/28/2021] [Accepted: 03/01/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Reading disability (RD) is characterized by slow and inaccurate word reading development, commonly reflecting underlying phonological problems. We have previously shown that exposure to white noise acutely improves cognitive performance in children with ADHD. The question addressed here is whether white noise exposure yields positive outcomes also for RD. There are theoretical reasons to expect such a possibility: a) RD and ADHD are two overlapping neurodevelopmental disorders and b) since prior research on white noise benefits has suggested that a central mechanism might be the phenomenon of stochastic resonance, then adding certain kinds of white noise might strengthen the signal-to-noise ratio during phonological processing and phoneme-grapheme mapping. METHODS The study was conducted with a group of 30 children with RD and phonological decoding difficulties and two comparison groups: one consisting of skilled readers (n = 22) and another of children with mild orthographic reading problems and age adequate phonological decoding (n = 30). White noise was presented experimentally in visual and auditory modalities, while the children performed tests of single word reading, orthographic word recognition, nonword reading, and memory recall. RESULTS For the first time, we show that visual and auditory white noise exposure improves some reading and memory capacities "on the fly" in children with RD and phonological decoding difficulties. By contrast, the comparison groups displayed either no benefit or a gradual decrease in performance with increasing noise. In interviews, we also found that the white noise exposure was tolerable or even preferred by many children. CONCLUSION These novel findings suggest that poor readers with phonological decoding difficulties may be immediately helped by white noise during reading. Future research is needed to determine the robustness, mechanisms, and long-term practical implications of the white noise benefits in children with reading disabilities.
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Affiliation(s)
- Göran B W Söderlund
- Faculty of Teacher Education Arts and Sports, Western Norway University of Applied Sciences, Sogndal, Norway.,Department of Education and Special Education, University of Gothenburg, Gothenburg, Sweden
| | - Jakob Åsberg Johnels
- Speech and Language Pathology Unit & the Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Silvia Children's Hospital, University of Gothenburg & The Child Neuropsychiatric Clinic, Gothenburg, Sweden
| | - Bodil Rothén
- Department of Pedagogy and Learning, Linnaeus University, Växjö, Sweden
| | | | - Andreas Magnusson
- Complex Adaptive Systems, Chalmers University of Technology, Gothenburg, Sweden
| | - Linda Fälth
- Department of Pedagogy and Learning, Linnaeus University, Växjö, Sweden
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Kakoulidou M, Le Cornu Knight F, Filippi R, Hurry J. The Effects of Choice on the Reading Comprehension and Enjoyment of Children with Severe Inattention and no Attentional Difficulties. Res Child Adolesc Psychopathol 2021; 49:1403-1417. [PMID: 34152501 PMCID: PMC8455393 DOI: 10.1007/s10802-021-00835-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2021] [Indexed: 11/30/2022]
Abstract
It has been proposed that enhancing motivation supports the learning of children with Attention Deficit Hyperactivity Disorder (ADHD). Less is known if inattentive children with no ADHD diagnosis may similarly benefit, when being motivated to engage in an academic task. Using a repeated-measures design, this study investigated the effects of text choice as an intrinsic motivator on the reading comprehension and enjoyment of Year 4 children attending mainstream primary schools (N = 92; aged 8–9 years; 48 boys); comparing those with no attentional difficulties and severe inattention. We hypothesized that 1) choice would increase reading comprehension and enjoyment 2) choice would increase the reading comprehension and enjoyment of children both with severe inattention and no attentional difficulties 3) choice effects would be significantly greater for children with severe inattention than those with no attentional difficulties. Children participated in a reading intervention that included a Choice (experimental) and a No Choice (control) condition. Child inattention was measured via a Virtual Reality Continuous Performance Task (Omission errors, Reaction Time Variability) and Teacher Ratings. Choice significantly increased reading comprehension, but not enjoyment compared with no choice. Choice improved the reading comprehension of children with both severe inattention and no attentional difficulties. Choice did not benefit the reading of severely inattentive children more than that of children with no attentional difficulties. These findings underline the educational benefits of choice for young readers both with severe inattention and no attentional difficulties, which are further discussed drawing on existing theory and research.
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Affiliation(s)
- Myrofora Kakoulidou
- Department of Psychology and Human Development, Institute of Education, UCL, 25, Woburn Square, London, WC1H 0AA, UK.
| | - Frances Le Cornu Knight
- Centre for Psychological Approaches for Studying Education, School of Education, University of Bristol, 35, Berkeley Square, Bristol, BS8 1JA, UK
| | - Roberto Filippi
- Department of Psychology and Human Development, Institute of Education, UCL, 25, Woburn Square, London, WC1H 0AA, UK
| | - Jane Hurry
- Department of Psychology and Human Development, Institute of Education, UCL, 25, Woburn Square, London, WC1H 0AA, UK
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Arnett AB, Wang T, Eichler EE, Bernier RA. Reflections on the genetics-first approach to advancements in molecular genetic and neurobiological research on neurodevelopmental disorders. J Neurodev Disord 2021; 13:24. [PMID: 34148555 PMCID: PMC8215789 DOI: 10.1186/s11689-021-09371-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 05/28/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Neurodevelopmental disorders (NDDs), including autism spectrum disorder (ASD) and intellectual disability (ID), are common diagnoses with highly heterogeneous phenotypes and etiology. The genetics-first approach to research on NDDs has led to the identification of hundreds of genes conferring risk for ASD, ID, and related symptoms. MAIN BODY Although relatively few individuals with NDDs share likely gene-disruptive (LGD) mutations in the same gene, characterization of overlapping functions, protein networks, and temporospatial expression patterns among these genes has led to increased understanding of the neurobiological etiology of NDDs. This shift in focus away from single genes and toward broader gene-brain-behavior pathways has been accelerated by the development of publicly available transcriptomic databases, cell type-specific research methods, and sequencing of non-coding genomic regions. CONCLUSIONS The genetics-first approach to research on NDDs has advanced the identification of critical protein function pathways and temporospatial expression patterns, expanding the impact of this research beyond individuals with single-gene mutations to the broader population of patients with NDDs.
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Affiliation(s)
- Anne B Arnett
- Department of Psychiatry and Behavioral Sciences, University of Washington, CHDD, Box 357920, Seattle, WA, 98195, USA.
- Department of Psychiatry and Behavioral Medicine, Seattle Children's Hospital, Seattle, WA, USA.
| | - Tianyun Wang
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Evan E Eichler
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Howard Hughes Medical Institute, University of Washington, Seattle, WA, USA
| | - Raphael A Bernier
- Department of Psychiatry and Behavioral Sciences, University of Washington, CHDD, Box 357920, Seattle, WA, 98195, USA
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Roberts GJ, Vaughn S, Roberts G, Miciak J. Problem Behaviors and Response to Reading Intervention for Upper Elementary Students With Reading Difficulties. REMEDIAL AND SPECIAL EDUCATION : RASE 2021; 42:169-181. [PMID: 34305302 PMCID: PMC8297789 DOI: 10.1177/0741932519865263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study investigated the extent to which problem behaviors were factors associated with response to a year-long multicomponent reading intervention for fourth- and fifth-grade students with reading difficulties. Students scoring ≤85 standard score on the Test of Silent Reading Efficiency and Comprehension (n = 108), a reading fluency and comprehension screener measure, were randomized to the researcher-provided treatment condition (n = 55) or the business-as-usual comparison condition (n = 53). Results indicated that problem behaviors were associated with lower reading comprehension outcomes. Findings also suggested that students with higher levels of overall problem behaviors and externalizing behaviors in the treatment condition outperformed similar students in the comparison condition on the Gates-MacGinitie Reading Test (p < .05). Future research is needed on how to best identify, develop, and adapt effective interventions for students with reading difficulties and problem behaviors within school-wide response to intervention frameworks.
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Affiliation(s)
| | - Sharon Vaughn
- The University of Texas at Austin, The Meadows Center for Preventing Educational Risk, USA
| | - Greg Roberts
- The University of Texas at Austin, The Meadows Center for Preventing Educational Risk, USA
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Kortteinen H, Eklund K, Eloranta AK, Aro T. Cognitive and non-cognitive factors in educational and occupational outcomes-Specific to reading disability? DYSLEXIA (CHICHESTER, ENGLAND) 2021; 27:204-223. [PMID: 33241620 DOI: 10.1002/dys.1673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/15/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
Low education and unemployment are common adult-age outcomes associated with childhood RD (c-RD). However, adult-age cognitive and non-cognitive factors associated with different outcomes remain unknown. We studied whether these outcomes are equally common among individuals with c-RD and controls and whether these outcomes are related to adult-age literacy skills or cognitive and non-cognitive factors or their interaction with c-RD. We examined adult participants with c-RD (n = 48) and their matched controls (n = 37). Low education was more common among c-RD than the controls, whereas long-term unemployment was equally common in both groups. Moreover, adult-age literacy skills, cognitive skills and non-cognitive factors were related to both low education and long-term unemployment. Only a few c-RD-specific associations emerged: c-RD, especially in interaction with low verbal or reading comprehension, was associated with low education, and c-RD in interaction with slow adult-age reading was associated with long-term unemployment. Avoidant coping style, emotional wellbeing and social functioning were related to education, and life-satisfaction to unemployment irrespective of c-RD. Thus, the non-cognitive factors associated with education and employment are similar in individuals with and without c-RD. Special attention should be paid to training c-RD individuals in basic academic, social and emotional skills.
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Affiliation(s)
| | - Kenneth Eklund
- Faculty of Education and Psychology, University of Jyväskylä, Jyväskylä, Finland
| | - Anna-Kaija Eloranta
- Department of Psychology, University of Jyväskylä, Jyväskylä, Finland
- Niilo Mäki Institute, University of Jyväskylä, Jyväskylä, Finland
| | - Tuija Aro
- Department of Psychology, University of Jyväskylä, Jyväskylä, Finland
- Niilo Mäki Institute, University of Jyväskylä, Jyväskylä, Finland
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von Wirth E, Kujath K, Ostrowski L, Settegast E, Rosarius S, Döpfner M, Schwenk C, Kuhn JT. The co-occurrence of Attention-Deficit/Hyperactivity Disorder and mathematical difficulties: An investigation of the role of basic numerical skills. RESEARCH IN DEVELOPMENTAL DISABILITIES 2021; 112:103881. [PMID: 33607486 DOI: 10.1016/j.ridd.2021.103881] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/26/2020] [Accepted: 01/23/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Attention-deficit/hyperactivity disorder (ADHD) and dyscalculia, also called mathematics disorder, frequently co-occur, yet the etiology of this comorbidity is poorly understood. AIMS This study investigated whether impairments in the understanding of numbers and magnitudes (basic numerical skills) are a unique risk factor for mathematical difficulties (MD) or a shared risk factor that could help to explain the association between ADHD and MD. METHODS AND PROCEDURES Basic numerical skills were assessed with eight subtests in children (age 6-10 years, N = 86) with clinically significant ADHD symptoms and/or MD and typically developing children (control group). This double dissociation design allowed to test for main and interaction effects of ADHD and MD using both classical and Bayesian analysis of variance (ANOVA). OUTCOMES AND RESULTS Children with MD were impaired in transcoding, complex number and magnitude comparison, and arithmetic fact retrieval. They were not impaired in tasks assessing core markers of numeracy, which might be explained by the sample including children with mathematical difficulties instead of a diagnosed dyscalculia. ADHD was not associated with deficits in any of the tasks. The evidence for an additive combination of cognitive profiles was weak. CONCLUSIONS AND IMPLICATIONS Impairments in basic numerical skills are uniquely associated with MD and do not represent a shared risk factor for ADHD symptoms and MD.
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Affiliation(s)
- Elena von Wirth
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Cologne, Germany; University of Cologne, Faculty of Medicine and University Hospital Cologne, School for Child and Adolescent Cognitive Behavior Therapy (AKiP), Cologne, Germany.
| | - Katharina Kujath
- University of Muenster, Institute of Psychology, Muenster, Germany
| | - Lea Ostrowski
- University of Cologne, Faculty of Medicine and University Hospital Cologne, School for Child and Adolescent Cognitive Behavior Therapy (AKiP), Cologne, Germany
| | - Ellen Settegast
- University of Cologne, Faculty of Medicine and University Hospital Cologne, School for Child and Adolescent Cognitive Behavior Therapy (AKiP), Cologne, Germany
| | - Sarah Rosarius
- University of Cologne, Faculty of Medicine and University Hospital Cologne, School for Child and Adolescent Cognitive Behavior Therapy (AKiP), Cologne, Germany
| | - Manfred Döpfner
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Cologne, Germany; University of Cologne, Faculty of Medicine and University Hospital Cologne, School for Child and Adolescent Cognitive Behavior Therapy (AKiP), Cologne, Germany
| | - Christin Schwenk
- TU Dortmund University, Faculty of Rehabilitation Sciences, Dortmund, Germany
| | - Jörg-Tobias Kuhn
- TU Dortmund University, Faculty of Rehabilitation Sciences, Dortmund, Germany
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Kibby MY, Newsham G, Imre Z, Schlak JE. Is executive dysfunction a potential contributor to the comorbidity between basic reading disability and attention-deficit/hyperactivity disorder? Child Neuropsychol 2021; 27:888-910. [PMID: 33849390 DOI: 10.1080/09297049.2021.1908532] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Our study is one of the few to analyze executive functioning (EF) in a comprehensive, multi-modal fashion as a potential contributor to the comorbidity between attention-deficit/hyperactivity disorder (ADHD) and basic reading disability (RD). We included multiple, traditional, neuropsychological measures of EF, along with the Behavior Rating Inventory of Executive Function (BRIEF) questionnaire, to assess inhibit, shift, working memory (WM), planning, generation fluency, and problem-solving. Participants included 263 children, ages 8-12 years, with RD, ADHD, RD/ADHD, and typically developing controls. When using the traditional measures in a 2 × 2 MANCOVA, we found both RD and ADHD had poor cognitive EF in most areas at the group level, with phonological loop deficits being more specific to RD and behavioral regulation deficits being more specific to ADHD. Children with RD/ADHD performed comparably to those with RD and ADHD alone. Results were similar on the BRIEF. In contrast, only WM predicted both basic reading and inattention when the data were assessed in a continuous fashion. It also explained the correlations between basic reading and inattention, being worthy of longitudinal research to determine if it is a shared contributor to RD/ADHD. When comparing hypotheses as to the nature of RD/ADHD, we found the multiple deficit hypothesis was better supported by our EF data than the phenocopy hypothesis or the cognitive subtype hypothesis.
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Affiliation(s)
- Michelle Y Kibby
- School of Psychological and Behavioral Sciences, Southern Illinois University-Carbondale, Carbondale, IL, USA
| | - Genni Newsham
- School of Psychological and Behavioral Sciences, Southern Illinois University-Carbondale, Carbondale, IL, USA
| | - Zsofia Imre
- School of Psychological and Behavioral Sciences, Southern Illinois University-Carbondale, Carbondale, IL, USA
| | - Jennifer E Schlak
- School of Psychological and Behavioral Sciences, Southern Illinois University-Carbondale, Carbondale, IL, USA
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Crisci G, Caviola S, Cardillo R, Mammarella IC. Executive Functions in Neurodevelopmental Disorders: Comorbidity Overlaps Between Attention Deficit and Hyperactivity Disorder and Specific Learning Disorders. Front Hum Neurosci 2021; 15:594234. [PMID: 33732121 PMCID: PMC7958764 DOI: 10.3389/fnhum.2021.594234] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 01/13/2021] [Indexed: 11/29/2022] Open
Abstract
The present study examines the comorbidity between specific learning disorders (SLD) and attention deficit and hyperactivity disorder (ADHD) by comparing the neuropsychological profiles of children with and without this comorbidity. Ninety-seven schoolchildren from 8 to 14 years old were tested: a clinical sample of 49 children with ADHD (n = 18), SLD (n = 18) or SLD in comorbidity with ADHD (n = 13), and 48 typically-developing (TD) children matched for age and intelligence. Participants were administered tasks and questionnaires to confirm their initial diagnosis, and a battery of executive function (EF) tasks testing inhibition, shifting, and verbal and visuospatial updating. Using one-way ANOVAs, our results showed that all children in the clinical samples exhibited impairments on EF measures (inhibition and shifting tasks) when compared with TD children. A more specific pattern only emerged for the updating tasks. Only children with SLD had significant impairment in verbal updating, whereas children with ADHD, and those with SLD in comorbidity with ADHD, had the worst performance in visuospatial updating. The clinical and educational implications of these findings are discussed.
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Affiliation(s)
- Giulia Crisci
- Department of Developmental and Social Psychology, University of Padua, Padua, Italy
| | - Sara Caviola
- Department of Developmental and Social Psychology, University of Padua, Padua, Italy
- School of Psychology, University of Leeds, Leeds, United Kingdom
| | - Ramona Cardillo
- Department of Developmental and Social Psychology, University of Padua, Padua, Italy
| | - Irene C. Mammarella
- Department of Developmental and Social Psychology, University of Padua, Padua, Italy
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Genome-wide association study reveals new insights into the heritability and genetic correlates of developmental dyslexia. Mol Psychiatry 2021; 26:3004-3017. [PMID: 33057169 PMCID: PMC8505236 DOI: 10.1038/s41380-020-00898-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 07/26/2020] [Accepted: 09/18/2020] [Indexed: 02/06/2023]
Abstract
Developmental dyslexia (DD) is a learning disorder affecting the ability to read, with a heritability of 40-60%. A notable part of this heritability remains unexplained, and large genetic studies are warranted to identify new susceptibility genes and clarify the genetic bases of dyslexia. We carried out a genome-wide association study (GWAS) on 2274 dyslexia cases and 6272 controls, testing associations at the single variant, gene, and pathway level, and estimating heritability using single-nucleotide polymorphism (SNP) data. We also calculated polygenic scores (PGSs) based on large-scale GWAS data for different neuropsychiatric disorders and cortical brain measures, educational attainment, and fluid intelligence, testing them for association with dyslexia status in our sample. We observed statistically significant (p < 2.8 × 10-6) enrichment of associations at the gene level, for LOC388780 (20p13; uncharacterized gene), and for VEPH1 (3q25), a gene implicated in brain development. We estimated an SNP-based heritability of 20-25% for DD, and observed significant associations of dyslexia risk with PGSs for attention deficit hyperactivity disorder (at pT = 0.05 in the training GWAS: OR = 1.23[1.16; 1.30] per standard deviation increase; p = 8 × 10-13), bipolar disorder (1.53[1.44; 1.63]; p = 1 × 10-43), schizophrenia (1.36[1.28; 1.45]; p = 4 × 10-22), psychiatric cross-disorder susceptibility (1.23[1.16; 1.30]; p = 3 × 10-12), cortical thickness of the transverse temporal gyrus (0.90[0.86; 0.96]; p = 5 × 10-4), educational attainment (0.86[0.82; 0.91]; p = 2 × 10-7), and intelligence (0.72[0.68; 0.76]; p = 9 × 10-29). This study suggests an important contribution of common genetic variants to dyslexia risk, and novel genomic overlaps with psychiatric conditions like bipolar disorder, schizophrenia, and cross-disorder susceptibility. Moreover, it revealed the presence of shared genetic foundations with a neural correlate previously implicated in dyslexia by neuroimaging evidence.
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De la Charie A, Delteil F, Labrell F, Colas P, Vigneras J, Câmara-Costa H, Mikaeloff Y. Time knowledge impairments in children with ADHD. Arch Pediatr 2020; 28:129-135. [PMID: 33358371 DOI: 10.1016/j.arcped.2020.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 07/21/2020] [Accepted: 11/21/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND A large number of studies have shown time perception impairment and reaction time (RT) variability in children with attention deficit hyperactivity disorder (ADHD), and have discussed the causes of such difficulties. However, very few studies have investigated time knowledge (i.e., the correct representation and use of time units) in children with ADHD. METHODS We evaluated time knowledge in 33 children with ADHD, aged 8-12 years, who had consulted a reference center for learning disabilities in Paris, matched for age and gender with 33 typically developing (TD) children. We used a simple questionnaire-based survey and neuropsychological tests for cognitive and attentional skills. RESULTS The acquisition of time knowledge was delayed in children with ADHD compared with TD children (P<0.01). At the end of primary school, children with ADHD obtained time knowledge scores that were close to those of TD children at the beginning of primary school. In children with ADHD, time knowledge was significantly related to the working memory index (P<0.05), but not to ADHD presentation (with or without hyperactivity). CONCLUSION This study shows time knowledge impairment in children with ADHD, and paves the way for new screening tests and rehabilitation focused on time knowledge and time-related skills, in order to improve patient care and autonomy.
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Affiliation(s)
- A De la Charie
- Centre de référence des troubles du langage et des apprentissages (CRTLA), hôpital Kremlin Bicêtre, Assistance publique-Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France.
| | - F Delteil
- Centre de référence des troubles du langage et des apprentissages (CRTLA), hôpital Kremlin Bicêtre, Assistance publique-Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France; Inserm, CESP (U1178), faculté de médecine, university Paris-Sud, faculté de médecine-UVSQ, université Paris-Saclay, 94805 Villejuif, France
| | - F Labrell
- Inserm, CESP (U1178), faculté de médecine, university Paris-Sud, faculté de médecine-UVSQ, université Paris-Saclay, 94805 Villejuif, France; INSHEA (national higher institute for training and research on special needs education), Grhapes (EA 7287), Suresnes, France
| | - P Colas
- Centre de référence des troubles du langage et des apprentissages (CRTLA), hôpital Kremlin Bicêtre, Assistance publique-Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France
| | - J Vigneras
- Centre de référence des troubles du langage et des apprentissages (CRTLA), hôpital Kremlin Bicêtre, Assistance publique-Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France
| | - H Câmara-Costa
- Inserm, CESP (U1178), faculté de médecine, university Paris-Sud, faculté de médecine-UVSQ, université Paris-Saclay, 94805 Villejuif, France
| | - Y Mikaeloff
- Centre de référence des troubles du langage et des apprentissages (CRTLA), hôpital Kremlin Bicêtre, Assistance publique-Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France; Inserm, CESP (U1178), faculté de médecine, university Paris-Sud, faculté de médecine-UVSQ, université Paris-Saclay, 94805 Villejuif, France
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