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Mukherjee M, Hyde C, Barhoun P, Bianco KM, Singh M, Waugh J, Silk TJ, Lum JA, Caeyenberghs K, Williams J, Enticott PG, Fuelscher I. White matter organisation of sensorimotor tracts is associated with motor imagery in childhood. Brain Struct Funct 2024; 229:1591-1603. [PMID: 38914896 PMCID: PMC11374871 DOI: 10.1007/s00429-024-02813-4] [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: 03/19/2024] [Accepted: 05/28/2024] [Indexed: 06/26/2024]
Abstract
Despite the important role of motor imagery (MI) in motor development, our understanding of the contribution of white matter fibre properties to MI performance in childhood remains limited. To provide novel insight into the white matter correlates of MI performance, this study examined the association between white matter fibre properties and motor imagery performance in a sample of typically developing children. High angular diffusion weighted imaging data were collected from 22 typically developing children aged 6-14 years (12 female, MAge= 10.56). Implicit motor imagery performance was assessed using a mental hand rotation paradigm. The cerebellar peduncles and the superior longitudinal fasciculus were reconstructed using TractSeg, a semi-automated method. For each tract, white matter microstructure (fibre density, FD) and morphology (fibre bundle cross-section, FC) were estimated using Fixel-Based Analysis. Permutation-based inference testing and partial correlation analyses demonstrated that higher FC in the middle cerebellar peduncles was associated with better MI performance. Tract-based region of interest analyses showed that higher FC in the middle and superior cerebellar peduncles were associated with better MI performance. Results suggest that white matter connectivity along the cerebellar peduncles may facilitate MI performance in childhood. These findings advance our understanding of the neurobiological systems that underlie MI performance in childhood and provide early evidence for the relevance of white matter sensorimotor pathways to internal action representations.
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Affiliation(s)
- Mugdha Mukherjee
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia.
| | - Christian Hyde
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Pamela Barhoun
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Kaila M Bianco
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Mervyn Singh
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Jessica Waugh
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Timothy J Silk
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Jarrad Ag Lum
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Karen Caeyenberghs
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Jacqueline Williams
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Peter G Enticott
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
| | - Ian Fuelscher
- School of Psychology, Deakin University, 221 Burwood Hwy, Burwood VIC 3125, Geelong, VIC, Australia
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Yasunaga M, Miyaguchi H, Ishizuki C, Kita Y, Nakai A. Association between Motor Skills, Occupational Performance, and Mental Health in Japanese Children with Neurodevelopmental Disorders: A Cross-Sectional Correlational Study. CHILDREN (BASEL, SWITZERLAND) 2024; 11:899. [PMID: 39201834 PMCID: PMC11353002 DOI: 10.3390/children11080899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/21/2024] [Accepted: 07/24/2024] [Indexed: 09/03/2024]
Abstract
BACKGROUND Motor skills have been linked to executive functions (EFs) in children with developmental coordination disorder (DCD). However, the traits of other neurodevelopmental disorders (NDDs), such as attention-deficit/hyperactivity disorder and autism spectrum disorder, remain overlooked. Therefore, this study explored the association between motor skills, occupational performance, and mental health in older kindergarten children with DCD and other NDDs. Overall, 95 participants aged 5-6 years were included in this study and divided into four groups: DCD traits (DCD-t), DCD-t + NDD traits (DCD-t + NDD-t), NDD-t-only, and typically developing children. Motor skills, EFs, and mental health were assessed using the DCD Questionnaire (DCDQ-J) and Movement Assessment Battery for Children-Second Edition, School Assessment of Motor and Process Skills (S-AMPS), and the Strengths and Difficulties Questionnaire (SDQ), respectively. The DCD-t + NDD-t group exhibited a strong correlation between the S-AMPS motor skill score and the DCDQ-J fine motor skill score (r = 0.88, p < 0.001) and between the total DCDQ-J score and the SDQ Total Difficulties Score (r = -0.94, p < 0.001). The findings indicate that children with DCD-t and NDD-t are more likely to experience EF and mental health problems than those with DCD-t only.
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Affiliation(s)
- Masanori Yasunaga
- Health and Counseling Center, Campus Life Health Support and Consultation Center, Osaka University, Toyonaka 560-0043, Japan;
| | - Hideki Miyaguchi
- Department of Human Behavior Science of Occupational Therapy, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan;
- University of Kochi He alth Scienses, Kochi 781-5103, Japan
| | - Chinami Ishizuki
- Department of Human Behavior Science of Occupational Therapy, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan;
| | - Yosuke Kita
- Department of Psychology, Faculty of Letters, Keio University, Tokyo 108-8345, Japan;
- Cognitive Brain Research Unit (CBRU), Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Akio Nakai
- Research Institute for Education & Graduate School of Clinical Education, Mukogawa Women’s University, Nishinomiya 663-8558, Japan
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Pranjić M, Rahman N, Kamenetskiy A, Mulligan K, Pihl S, Arnett AB. A systematic review of behavioral and neurobiological profiles associated with coexisting attention-deficit/hyperactivity disorder and developmental coordination disorder. Neurosci Biobehav Rev 2023; 153:105389. [PMID: 37704094 DOI: 10.1016/j.neubiorev.2023.105389] [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: 08/12/2023] [Revised: 08/31/2023] [Accepted: 09/10/2023] [Indexed: 09/15/2023]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) and developmental coordination disorder (DCD) co-occur in approximately 50% of cases. This study aimed to characterize the behavioral, cognitive, and neurobiological profiles of co-occurring ADHD and DCD diagnoses by mapping, synthesizing, and providing a critical appraisal of the existing literature. A systematic search was conducted across four databases (MEDLINE, PsycINFO, Embase, and Scopus) to identify studies comparing a coexisting ADHD+DCD diagnosis to ADHD and DCD alone. From 2353 screened articles, 15 behavioral and 10 neuroimaging studies were included. Collectively, these studies suggest that the comorbid ADHD+DCD presentation constitutes a more severe phenotype characterized by neurocognitive differences associated with both conditions. Despite sharing some common neural features, our findings support the separate etiology hypothesis indicating that neural network alterations in individuals with ADHD+DCD represent a unique neural pattern rather than a sum of ADHD and DCD characteristics. Considering the heterogeneity inherent to both ADHD and DCD, future studies should involve rigorous and comprehensive assessment procedures to delineate how different subtypes of each diagnosis relate to distinct performance characteristics.
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Affiliation(s)
- Marija Pranjić
- Division of Developmental Medicine, Boston Children's Hospital, Boston, MA, USA.
| | - Navin Rahman
- Division of Developmental Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Adelia Kamenetskiy
- Division of Developmental Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Kaitlin Mulligan
- Division of Developmental Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Stephen Pihl
- Division of Developmental Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Anne B Arnett
- Division of Developmental Medicine, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA
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Abed M, Mansureh HH, Masoud GAL, Elaheh H, Mohammad-Hossein NHK, Yamin BD, Abdol-Hossein V. Construction of Meta-Thinking Educational Program Based on Mental-Brain Simulation ( MTMBS) and Evaluating its Effectiveness on Executive Functions, Emotion Regulation, and Impulsivity in Children With ADHD: A Resting-State Functional MRI Study. J Atten Disord 2023; 27:1223-1251. [PMID: 36843348 DOI: 10.1177/10870547231155436] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE The aim of present research was to make a Meta-Thinking educational program based on mental-brain simulation and to evaluate its effectiveness on executive functions, emotion regulation and impulsivity in children with ADHD. METHODS The research method was Embedded Design: Embedded Experimental Model. The research sample included 32 children with ADHD who were randomly assigned to two experimental and control groups. The intervention was implemented for eight sessions of 1.5 hr for the experimental group, and fMRI images were taken from them, while the control group didn't receive any treatment. Finally, using semi-structured interviews, coherent information was collected from the parents of the experimental group about the changes made. Data were analyzed with SPSS-24, MAXQDA, fMRIprep, and FSL software. RESULTS The Meta-Thinking Educational Program had effect on performance of ADHD children and suppressed brain regions related to DMN. CONCLUSION The Implementation of this educational program plays a vital role in improving psychological problems of children with ADHD.
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Characterizing different cognitive and neurobiological profiles in a community sample of children using a non-parametric approach: An fMRI study. Dev Cogn Neurosci 2023; 60:101198. [PMID: 36652896 PMCID: PMC9853310 DOI: 10.1016/j.dcn.2023.101198] [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: 12/09/2021] [Revised: 12/06/2022] [Accepted: 01/11/2023] [Indexed: 01/14/2023] Open
Abstract
Executive Functions (EF) is an umbrella term for a set of mental processes geared towards goal-directed behavior supporting academic skills such as reading abilities. One of the brain's functional networks implicated in EF is the Default Mode Network (DMN). The current study uses measures of inhibitory control, a main sub-function of EF, to create cognitive and neurobiological "inhibitory control profiles" and relate them to reading abilities in a large sample (N = 5055) of adolescents aged 9-10 from the Adolescent Brain Cognitive Development (ABCD) study. Using a Latent Profile Analysis (LPA) approach, data related to inhibitory control was divided into four inhibition classes. For each class, functional connectivity within the DMN was calculated from resting-state data, using a non-parametric algorithm for detecting group similarities. These inhibitory control profiles were then related to reading abilities. The four inhibitory control groups showed significantly different reading abilities, with neurobiologically different DMN segregation profiles for each class versus controls. The current study demonstrates that a community sample of children is not entirely homogeneous and is composed of different subgroups that can be differentiated both behaviorally/cognitively and neurobiologically, by focusing on inhibitory control and the DMN. Educational implications relating these results to reading abilities are noted.
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Lachambre C, Proteau-Lemieux M, Lepage JF, Bussières EL, Lippé S. Attentional and executive functions in children and adolescents with developmental coordination disorder and the influence of comorbid disorders: A systematic review of the literature. PLoS One 2021; 16:e0252043. [PMID: 34086687 PMCID: PMC8177544 DOI: 10.1371/journal.pone.0252043] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 05/10/2021] [Indexed: 01/11/2023] Open
Abstract
Developmental coordination disorder (DCD) is a neurodevelopmental disorder affecting primarily motor skills, but attentional and executive impairments are common in affected individuals. Moreover, the presence of neurodevelopmental comorbidities is frequent in this population, which certainly influences the cognitive profile of the children concerned. Previous studies have reported deficits in visuospatial/nonverbal and planning tasks. This systematic review of the literature aims to determine if impairments can be found in other attentional and executive functions as well. The type of cognitive tasks, the tasks’ modality (verbal/nonverbal), and the influence of comorbid disorders on attentional and executive profiles are systematically considered. Forty-one studies were identified through the PubMed/Medline and PsycINFO databases according to pre-established eligibility criteria. The results reveal weaknesses in inhibitory control, working memory, planning, nonverbal fluency, and general executive functioning in children with DCD. The presence of comorbid disorders seemingly contributes to the verbal working memory difficulties findings. This review contributes to a better understanding of the cognitive impairments in DCD and of the needs of children with this disorder, allowing to optimize practitioners’ therapeutic interventions.
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Affiliation(s)
- Catherine Lachambre
- Department of Psychology, Succursale Centre-Ville, University of Montreal, Montreal, Quebec, Canada
- Sainte-Justine Hospital Research Center, Montreal, Quebec, Canada
| | | | | | - Eve-Line Bussières
- Department of Psychology, University of Quebec at Trois-Rivières, Trois-Rivières, Quebec, Canada
| | - Sarah Lippé
- Department of Psychology, Succursale Centre-Ville, University of Montreal, Montreal, Quebec, Canada
- Sainte-Justine Hospital Research Center, Montreal, Quebec, Canada
- * E-mail:
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Scott MW, Wood G, Holmes PS, Williams J, Marshall B, Wright DJ. Combined action observation and motor imagery: An intervention to combat the neural and behavioural deficits associated with developmental coordination disorder. Neurosci Biobehav Rev 2021; 127:638-646. [PMID: 34022280 DOI: 10.1016/j.neubiorev.2021.05.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/09/2021] [Accepted: 05/17/2021] [Indexed: 01/10/2023]
Abstract
Action observation (AO) and motor imagery (MI) have been used separately across different populations to alleviate movement impairment. Recently these two forms of covert motor simulation have been combined (combined action observation and motor imagery; AOMI), resulting in greater neurophysiological activity in the motor system, and more favourable behavioural outcomes when compared to independent AO and MI. This review aims to outline how some of the neural deficits associated with developmental coordination disorder (DCD) are evident during AO and MI, and highlight how these motor simulation techniques have been used independently to improve motor skill learning in children in this population. The growing body of evidence indicating that AOMI is superior to the independent use of either AO and MI is then synthesised and discussed in the context of children with DCD. To conclude, recommendations to optimise the delivery of AOMI for children with DCD are provided and future avenues for research are highlighted.
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Affiliation(s)
- Matthew W Scott
- Research Centre for Health, Psychology and Communities, Department of Psychology, Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, UK.
| | - Greg Wood
- Research Centre for Musculoskeletal Science and Sports Medicine, Department of Sport and Exercise Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK
| | - Paul S Holmes
- Research Centre for Health, Psychology and Communities, Department of Psychology, Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, UK
| | - Jacqueline Williams
- Institute for Health and Sport, College of Sport and Exercise Science, Victoria University, Victoria, Australia
| | - Ben Marshall
- Research Centre for Musculoskeletal Science and Sports Medicine, Department of Sport and Exercise Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK
| | - David J Wright
- Research Centre for Health, Psychology and Communities, Department of Psychology, Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, UK
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Abstract
OBJECTIVES Multiple studies have found evidence of task non-specific slow drift rate in ADHD, and slow drift rate has rapidly become one of the most visible cognitive hallmarks of the disorder. In this study, we use the diffusion model to determine whether atypicalities in visuospatial cognitive processing exist independently of slow drift rate. METHODS Eight- to twelve-year-old children with (n = 207) and without ADHD (n = 99) completed a 144-trial mental rotation task. RESULTS Performance of children with ADHD was less accurate and more variable than non-ADHD controls, but there were no group differences in mean response time. Drift rate was slower, but nondecision time was faster for children with ADHD. A Rotation × ADHD interaction for boundary separation was also found in which children with ADHD did not strategically adjust their response thresholds to the same degree as non-ADHD controls. However, the Rotation × ADHD interaction was not significant for nondecision time, which would have been the primary indicator of a specific deficit in mental rotation per se. CONCLUSIONS Poorer performance on the mental rotation task was due to slow rate of evidence accumulation, as well as relative inflexibility in adjusting boundary separation, but not to impaired visuospatial processing specifically. We discuss the implications of these findings for future cognitive research in ADHD.
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Barhoun P, Fuelscher I, Do M, He JL, Bekkali S, Cerins A, Youssef GJ, Williams J, Enticott PG, Hyde C. Mental rotation performance in young adults with and without developmental coordination disorder. Hum Mov Sci 2021; 77:102787. [PMID: 33798929 DOI: 10.1016/j.humov.2021.102787] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
While there have been consistent behavioural reports of atypical hand rotation task (HRT) performance in adults with developmental coordination disorder (DCD), this study aimed to clarify whether this deficit could be attributed to specific difficulties in motor imagery (MI), as opposed to broad deficits in general mental rotation. Participants were 57 young adults aged 18-30 years with (n = 22) and without DCD (n = 35). Participants were compared on the HRT, a measure of MI, and the letter number rotation task (LNRT), a common visual imagery task. Only participants whose behavioural performance on the HRT suggested use of a MI strategy were included in group comparisons. Young adults with DCD were significantly less efficient compared to controls when completing the HRT yet showed comparable performance on the LNRT relative to adults with typical motor ability. Our data are consistent with the view that atypical HRT performance in adults with DCD is likely to be attributed to specific difficulties engaging in MI, as opposed to deficits in general mental rotation. Based on the theory that MI provides insight into the integrity of internal action representations, these findings offer further support for the internal modelling deficit hypothesis of DCD.
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Affiliation(s)
- Pamela Barhoun
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia.
| | - Ian Fuelscher
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia
| | - Michael Do
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia
| | - Jason L He
- Department of Forensic and Neurodevelopmental Sciences, Sackler Institute for Translational Neurodevelopment, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, United Kingdom
| | - Soukayna Bekkali
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia
| | - Andris Cerins
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia
| | - George J Youssef
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia; Murdoch Children's Research Institute, Centre for Adolescent Health, Royal Children's Hospital, Melbourne, Australia
| | - Jacqueline Williams
- Institute for Health and Sport, College of Sport and Exercise Science, Victoria University, Melbourne, Australia
| | - Peter G Enticott
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia
| | - Christian Hyde
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Australia
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van de Walle de Ghelcke A, Skoura X, Edwards MG, Quercia P, Papaxanthis C. Action representation deficits in adolescents with developmental dyslexia. J Neuropsychol 2020; 15:215-234. [PMID: 32816402 DOI: 10.1111/jnp.12220] [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: 11/01/2019] [Revised: 07/07/2020] [Indexed: 11/28/2022]
Abstract
Developmental dyslexia (DD), a severe and frequent disorder of reading acquisition, is characterized by a diversity of cognitive and motor deficits whose interactions still remain under debate. Although deficits in the automatization of sensorimotor control have been highlighted, internal action representation allowing prediction has never before been investigated. In this study, we considered action representation of 18 adolescents with pure DD and 18 age-matched typical readers. Participants actually and mentally performed a visually guided pointing task involving strong spatiotemporal constraints (speed/accuracy trade-off paradigm). While actual and mental movement times of typical readers were isochronous and both conformed to Fitts' law, the movement times of dyslexics differed between conditions, and only the actual movement times conformed to Fitts' law. Furthermore, the quality of motor imagery correlated with word reading abilities. This suggests that the process of action representation is impaired in pure DD and supports the sensorimotor perspective of DD. Theoretical implications are discussed.
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Affiliation(s)
- Alice van de Walle de Ghelcke
- Psychological Sciences Research Institute and Institute of Neuroscience, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Xanthi Skoura
- INSERM UMR1093-CAPS, UFR des Sciences du Sport, Université Bourgogne Franche-Comté, Dijon, France
| | - Martin Gareth Edwards
- Psychological Sciences Research Institute and Institute of Neuroscience, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Patrick Quercia
- INSERM UMR1093-CAPS, UFR des Sciences du Sport, Université Bourgogne Franche-Comté, Dijon, France
| | - Charalambos Papaxanthis
- INSERM UMR1093-CAPS, UFR des Sciences du Sport, Université Bourgogne Franche-Comté, Dijon, France
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11
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Training-Induced Neuroplasticity in Children with Developmental Coordination Disorder. CURRENT DEVELOPMENTAL DISORDERS REPORTS 2020. [DOI: 10.1007/s40474-020-00191-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Motor imagery in children with DCD: A systematic and meta-analytic review of hand-rotation task performance. Neurosci Biobehav Rev 2019; 99:282-297. [DOI: 10.1016/j.neubiorev.2019.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 01/21/2019] [Accepted: 02/04/2019] [Indexed: 02/05/2023]
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13
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Licari MK, Finlay-Jones A, Reynolds JE, Alvares GA, Spittle AJ, Downs J, Whitehouse AJO, Leonard H, Evans KL, Varcin K. The Brain Basis of Comorbidity in Neurodevelopmental Disorders. CURRENT DEVELOPMENTAL DISORDERS REPORTS 2019. [DOI: 10.1007/s40474-019-0156-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Fuchs CT, Caçola P. Differences in accuracy and vividness of motor imagery in children with and without Developmental Coordination Disorder. Hum Mov Sci 2018; 60:234-241. [DOI: 10.1016/j.humov.2018.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 06/23/2018] [Accepted: 06/25/2018] [Indexed: 11/25/2022]
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15
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Abuin-Porras V, Villafañe JH, Jiménez-Antona C, Palacios A, Martínez-Pascual B, Rodríguez-Costa I. Relationship between attention and balance: a dual-task condition study in children. J Exerc Rehabil 2018; 14:349-355. [PMID: 30018917 PMCID: PMC6028223 DOI: 10.12965/jer.1836142.071] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 04/25/2018] [Indexed: 12/04/2022] Open
Abstract
This study explored the relationship between motor functions and attention in children aged 4-5 years. A sample of 85 children was collected from a primary school (44 boys and 41 girls). We applied a standardized continuous attention performance test, the Kiddie Continuous Performance Test, under two conditions (sitting and balancing). Data were collected from two standardized balance tests, the Battelle and Pediatric Balance Scale. There was a significant relationship between attention and balance and gender differences that may condition the way to address balance issues in boys and girls. Gender should be considered when addressing balance problems to get efficient interventions. Balance skill may be a contributing factor in attention-deficit/hyperactivity disorder.
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Affiliation(s)
- Vanesa Abuin-Porras
- Grupo de investigación en dolor musculoesquelético y control motor UE, Universidad Europea de Madrid, Madrid, Spain
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Nobusako S, Sakai A, Tsujimoto T, Shuto T, Nishi Y, Asano D, Furukawa E, Zama T, Osumi M, Shimada S, Morioka S, Nakai A. Deficits in Visuo-Motor Temporal Integration Impacts Manual Dexterity in Probable Developmental Coordination Disorder. Front Neurol 2018; 9:114. [PMID: 29556211 PMCID: PMC5844924 DOI: 10.3389/fneur.2018.00114] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 02/14/2018] [Indexed: 11/13/2022] Open
Abstract
The neurological basis of developmental coordination disorder (DCD) is thought to be deficits in the internal model and mirror-neuron system (MNS) in the parietal lobe and cerebellum. However, it is not clear if the visuo-motor temporal integration in the internal model and automatic-imitation function in the MNS differs between children with DCD and those with typical development (TD). The current study aimed to investigate these differences. Using the manual dexterity test of the Movement Assessment Battery for Children (second edition), the participants were either assigned to the probable DCD (pDCD) group or TD group. The former was comprised of 29 children with clumsy manual dexterity, while the latter consisted of 42 children with normal manual dexterity. Visuo-motor temporal integration ability and automatic-imitation function were measured using the delayed visual feedback detection task and motor interference task, respectively. Further, the current study investigated whether autism-spectrum disorder (ASD) traits, attention-deficit hyperactivity disorder (ADHD) traits, and depressive symptoms differed among the two groups, since these symptoms are frequent comorbidities of DCD. In addition, correlation and multiple regression analyses were performed to extract factors affecting clumsy manual dexterity. In the results, the delay-detection threshold (DDT) and steepness of the delay-detection probability curve, which indicated visuo-motor temporal integration ability, were significantly prolonged and decreased, respectively, in children with pDCD. The interference effect, which indicated automatic-imitation function, was also significantly reduced in this group. These results highlighted that children with clumsy manual dexterity have deficits in visuo-motor temporal integration and automatic-imitation function. There was a significant correlation between manual dexterity, and measures of visuo-motor temporal integration, and ASD traits and ADHD traits and ASD. Multiple regression analysis revealed that the DDT, which indicated visuo-motor temporal integration, was the greatest predictor of poor manual dexterity. The current results supported and provided further evidence for the internal model deficit hypothesis. Further, they suggested a neurorehabilitation technique that improved visuo-motor temporal integration could be therapeutically effective for children with DCD.
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Affiliation(s)
- Satoshi Nobusako
- Neurorehabilitation Research Center, Kio University, Nara, Japan.,Graduate School of Health Science, Kio University, Nara, Japan
| | - Ayami Sakai
- Department of Rehabilitation, Higashi Osaka Yamaji Hospital, Osaka, Japan
| | - Taeko Tsujimoto
- Department of Rehabilitation, Nanso-no-Sato, Nursing Care Insurance Facilities, Osaka, Japan
| | - Takashi Shuto
- Department of Rehabilitation, Nogami Hospital, Osaka, Japan
| | - Yuki Nishi
- Department of Home-Visit Rehabilitation, Ishida Clinic, Osaka, Japan
| | - Daiki Asano
- Department of Rehabilitation, Japan Baptist Hospital, Kyoto, Japan
| | - Emi Furukawa
- Faculty of Education, Kio University, Nara, Japan
| | - Takuro Zama
- Department of Electrical Engineering, Graduate School of Science and Technology, Meiji University, Kanagawa, Japan
| | - Michihiro Osumi
- Neurorehabilitation Research Center, Kio University, Nara, Japan.,Graduate School of Health Science, Kio University, Nara, Japan
| | - Sotaro Shimada
- Department of Electronics and Bioinformatics, School of Science and Technology, Meiji University, Kanagawa, Japan
| | - Shu Morioka
- Neurorehabilitation Research Center, Kio University, Nara, Japan.,Graduate School of Health Science, Kio University, Nara, Japan
| | - Akio Nakai
- Hyogo Children's Sleep and Development Medical Research Center, Kobe, Japan
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17
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Hyde C, Fuelscher I, Williams J, Lum JAG, He J, Barhoun P, Enticott PG. Corticospinal excitability during motor imagery is reduced in young adults with developmental coordination disorder. RESEARCH IN DEVELOPMENTAL DISABILITIES 2018; 72:214-224. [PMID: 29195158 DOI: 10.1016/j.ridd.2017.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 11/01/2017] [Accepted: 11/19/2017] [Indexed: 06/07/2023]
Abstract
While a compelling body of behavioral research suggests that individuals with developmental coordination disorder (DCD) experience difficulties engaging motor imagery (MI), very little is known about the neural correlates of this deficit. Since corticospinal excitability is a predictor of MI proficiency in healthy adults, we reasoned that decreased MI efficiency in DCD may be paralleled by atypical primary motor cortex (PMC) activity. Participants were 29 young adults aged 18- 36 years: 8 with DCD (DCD) and 21 controls. Six participants with DCD and 15 controls showed behavioral profiles consistent with the use of a MI strategy (MI users) while performing a novel adaptation of the classic hand laterality task (HLT). Single-pulse transcranial magnetic stimulation (TMS) was administered to the hand node of the left PMC (hPMC) at 50ms, 400ms or 650ms post stimulus presentation during the HLT. Motor-evoked potentials (MEPs) were recorded from the right first dorsal interosseous (FDI) via electromyography. As predicted, MI users with DCD were significantly less efficient than MI using controls, shown by poorer performance on the HLT. Importantly, unlike healthy controls, no evidence of enhanced hPMC activity during MI was detected in our DCD group. Our data are consistent with the view that inefficient MI in DCD may be subserved by decreased hPMC activity. These findings are an important step towards clarifying the neuro-cognitive correlates of poor MI ability and motor skill in individuals with DCD.
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Affiliation(s)
- C Hyde
- Deakin Child Study Centre, School of Psychology, Deakin University, Geelong, Australia.
| | - I Fuelscher
- Deakin Child Study Centre, School of Psychology, Deakin University, Geelong, Australia
| | - J Williams
- Institute of Sport, Exercise and Active Living, Victoria University, Melbourne, Australia
| | - J A G Lum
- Deakin Child Study Centre, School of Psychology, Deakin University, Geelong, Australia
| | - J He
- Deakin Child Study Centre, School of Psychology, Deakin University, Geelong, Australia
| | - P Barhoun
- Deakin Child Study Centre, School of Psychology, Deakin University, Geelong, Australia
| | - P G Enticott
- Deakin Child Study Centre, School of Psychology, Deakin University, Geelong, Australia
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18
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Adams ILJ, Lust JM, Steenbergen B. Development of motor imagery ability in children with developmental coordination disorder - A goal-directed pointing task. Br J Psychol 2017; 109:187-203. [DOI: 10.1111/bjop.12274] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 09/19/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Imke L. J. Adams
- Behavioural Science Institute; Radboud University; Nijmegen The Netherlands
| | - Jessica M. Lust
- Behavioural Science Institute; Radboud University; Nijmegen The Netherlands
| | - Bert Steenbergen
- Behavioural Science Institute; Radboud University; Nijmegen The Netherlands
- School of Psychology; Australian Catholic University; Sydney New South Wales Australia
- Centre for Disability and Development Research; Australian Catholic University; Sydney New South Wales Australia
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19
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Wilson PH, Smits-Engelsman B, Caeyenberghs K, Steenbergen B, Sugden D, Clark J, Mumford N, Blank R. Cognitive and neuroimaging findings in developmental coordination disorder: new insights from a systematic review of recent research. Dev Med Child Neurol 2017; 59:1117-1129. [PMID: 28872667 DOI: 10.1111/dmcn.13530] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/17/2017] [Indexed: 11/29/2022]
Abstract
AIM To better understand the neural and performance factors that may underlie developmental coordination disorder (DCD), and implications for a multi-component account. METHOD A systematic review of the experimental literature published between June 2011 and September 2016 was conducted using a modified PICOS (population, intervention, comparison, outcomes, and study type) framework. A total of 106 studies were included. RESULTS Behavioural data from 91 studies showed a broad cluster of deficits in the anticipatory control of movement, basic processes of motor learning, and cognitive control. Importantly, however, performance issues in DCD were often shown to be moderated by task type and difficulty. As well, we saw new evidence of compensatory processes and strategies in several studies. Neuroimaging data (15 studies, including electroencephalography) showed reduced cortical thickness in the right medial orbitofrontal cortex and altered brain activation patterns across functional networks involving prefrontal, parietal, and cerebellar regions in children with DCD than those in comparison groups. Data from diffusion-weighted magnetic resonance imaging suggested reduced white matter organization involving sensorimotor structures and altered structural connectivity across the whole brain network. INTERPRETATION Taken together, results support the hypothesis that children with DCD show differences in brain structure and function compared with typically developing children. Behaviourally, these differences may affect anticipatory planning and reduce automatization of movement skill, prompting greater reliance on slower feedback-based control and compensatory strategies. Implications for future research, theory development, and clinical practice are discussed.
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Affiliation(s)
- Peter H Wilson
- School of Psychology, Australian Catholic University, Melbourne, Victoria, Australia.,Centre for Disability and Development Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Bouwien Smits-Engelsman
- Department of Health and Rehabilitation Services, University of Cape Town, Cape Town, South Africa
| | - Karen Caeyenberghs
- School of Psychology, Australian Catholic University, Melbourne, Victoria, Australia.,Centre for Disability and Development Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Bert Steenbergen
- Centre for Disability and Development Research, Australian Catholic University, Melbourne, Victoria, Australia.,Behavioural Science Institute, Radboud University, Nijmegen, the Netherlands
| | - David Sugden
- School of Special Needs Education, University of Leeds, Leeds, UK
| | - Jane Clark
- School of Public Health, University of Maryland, College Park, MD, USA
| | - Nick Mumford
- Centre for Disability and Development Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Rainer Blank
- Institute of Public Health, University of Heidelberg, Heidelberg, Germany.,Child Centre, Maulbronn, Germany
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20
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Adams IL, Lust JM, Wilson PH, Steenbergen B. Development of motor imagery and anticipatory action planning in children with developmental coordination disorder – A longitudinal approach. Hum Mov Sci 2017; 55:296-306. [DOI: 10.1016/j.humov.2017.08.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 10/18/2022]
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21
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Kashuk S, Williams J, Thorpe G, Wilson P, Egan G. Diminished motor imagery capability in adults with motor impairment: An fMRI mental rotation study. Behav Brain Res 2017; 334:86-96. [DOI: 10.1016/j.bbr.2017.06.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 06/18/2017] [Accepted: 06/26/2017] [Indexed: 11/30/2022]
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22
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Adams ILJ, Smits-Engelsman B, Lust JM, Wilson PH, Steenbergen B. Feasibility of Motor Imagery Training for Children with Developmental Coordination Disorder - A Pilot Study. Front Psychol 2017; 8:1271. [PMID: 28798707 PMCID: PMC5526967 DOI: 10.3389/fpsyg.2017.01271] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 07/12/2017] [Indexed: 01/12/2023] Open
Abstract
Children with Developmental Coordination Disorder (DCD) experience movement difficulties that may be linked to processes involved in motor imagery (MI). This paper discusses recent advances in theory that underpin the use of MI training for children with DCD. This knowledge is translated in a new MI training protocol which is compared with the cognitive orientation to daily occupational performance (CO-OP). Children meeting DSM-5 criteria for DCD were assigned to MI (n = 4) or CO-OP (n = 4) interventions and completed nine treatment sessions, including homework exercises. Results were positive, with two children in the MI group and three in the CO-OP group improving their m-ABC-2 score by ≥ 2 standard scores, interpreted as a clinically meaningful change. Moreover, all children and parents noticed improvements in motor skills after training. This is the first study to demonstrate the feasibility of a theoretically principled treatment protocol for MI training in children with DCD, and extends earlier work. Trial registration: The complete trial is registered at the Dutch trial register, www.trialregister.nl (NTR5471). http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=5471
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Affiliation(s)
- Imke L J Adams
- Behavioural Science Institute, Radboud UniversityNijmegen, Netherlands
| | - Bouwien Smits-Engelsman
- Department of Health and Rehabilitation Sciences, Faculty of Health Sciences, University of Cape TownCape Town, South Africa
| | - Jessica M Lust
- Behavioural Science Institute, Radboud UniversityNijmegen, Netherlands
| | - Peter H Wilson
- School of Psychology, Australian Catholic University, MelbourneVIC, Australia.,Centre for Disability and Development Research, Australian Catholic University, MelbourneVIC, Australia
| | - Bert Steenbergen
- Behavioural Science Institute, Radboud UniversityNijmegen, Netherlands.,School of Psychology, Australian Catholic University, MelbourneVIC, Australia.,Centre for Disability and Development Research, Australian Catholic University, MelbourneVIC, Australia
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23
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Fourneret P, Poissant H. [Learning disorders in ADHD: How are they related?]. Arch Pediatr 2017; 23:1276-1283. [PMID: 28492169 DOI: 10.1016/j.arcped.2016.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 08/03/2016] [Accepted: 09/19/2016] [Indexed: 11/29/2022]
Abstract
Learning difficulties in general and learning disabilities in particular are almost constant in attention deficit disorder with or without hyperactivity (ADHD). Despite a major research effort, the extent and diversity of these comorbid events still raise many questions about the exact nature of their pathogenetic condition (simple consequences of ADHD or specific related disorders?) and consequently the best way to support them. This article aims to present a brief review of the current data.
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Affiliation(s)
- P Fourneret
- Service psychopathologie du développement, hôpital Femme-Mère-Enfant, hospices civils de Lyon, 59, boulevard Pinel, 69677 Bron cedex, France; Laboratoire L2C2 UMR 5304 CNRS, université Claude-Bernard-Lyon 1, 69677 Bron, France; Département d'éducation et de pédagogie, faculté des sciences humaines, institut des sciences cognitives, UQAM, Montréal, Canada.
| | - H Poissant
- Département d'éducation et de pédagogie, faculté des sciences humaines, institut des sciences cognitives, UQAM, Montréal, Canada
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24
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Mirabella G, Del Signore S, Lakens D, Averna R, Penge R, Capozzi F. Developmental Coordination Disorder Affects the Processing of Action-Related Verbs. Front Hum Neurosci 2017; 10:661. [PMID: 28119585 PMCID: PMC5222863 DOI: 10.3389/fnhum.2016.00661] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 12/12/2016] [Indexed: 11/16/2022] Open
Abstract
Processing action-language affects the planning and execution of motor acts, which suggests that the motor system might be involved in action-language understanding. However, this claim is hotly debated. For the first time, we compared the processing of action-verbs in children with Developmental Coordination Disorder (DCD), a disease that specifically affects the motor system, with children with a typical development (TD). We administered two versions of a go/no-go task in which verbs expressing either hand, foot or abstract actions were presented. We found that only when the semantic content of a verb has to be retrieved, TD children showed an increase in reaction times if the verb involved the same effector used to give the response. In contrast, DCD patients did not show any difference between verb categories irrespective of the task. These findings suggest that the pathological functioning of the motor system in individuals with DCD also affects language processing.
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Affiliation(s)
- Giovanni Mirabella
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, University of Rome "Sapienza"Rome, Italy; IRCCS Neuromed HospitalPozzilli, Italy
| | - Sara Del Signore
- Department of Pediatrics and Neuropsichiatry of Children and Adolescents, University of Rome "Sapienza" Rome, Italy
| | - Daniel Lakens
- School of Innovation Sciences, Department of Industrial Engineering & Innovation Sciences, Eindhoven University of Technology, Eindhoven Netherlands
| | - Roberto Averna
- Department of Pediatrics and Neuropsichiatry of Children and Adolescents, University of Rome "Sapienza"Rome, Italy; IRCCS Children Hospital Bambino GesùRome, Italy
| | - Roberta Penge
- Department of Pediatrics and Neuropsichiatry of Children and Adolescents, University of Rome "Sapienza" Rome, Italy
| | - Flavia Capozzi
- Department of Pediatrics and Neuropsichiatry of Children and Adolescents, University of Rome "Sapienza" Rome, Italy
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25
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Biotteau M, Chaix Y, Blais M, Tallet J, Péran P, Albaret JM. Neural Signature of DCD: A Critical Review of MRI Neuroimaging Studies. Front Neurol 2016; 7:227. [PMID: 28018285 PMCID: PMC5159484 DOI: 10.3389/fneur.2016.00227] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/28/2016] [Indexed: 11/13/2022] Open
Abstract
The most common neurodevelopmental disorders (e.g., developmental dyslexia (DD), autism, attention-deficit hyperactivity disorder (ADHD)) have been the subject of numerous neuroimaging studies, leading to certain brain regions being identified as neural correlates of these conditions, referring to a neural signature of disorders. Developmental coordination disorder (DCD), however, remains one of the least understood and studied neurodevelopmental disorders. Given the acknowledged link between motor difficulties and brain features, it is surprising that so few research studies have systematically explored the brains of children with DCD. The aim of the present review was to ascertain whether it is currently possible to identify a neural signature for DCD, based on the 14 magnetic resonance imaging neuroimaging studies that have been conducted in DCD to date. Our results indicate that several brain areas are unquestionably linked to DCD: cerebellum, basal ganglia, parietal lobe, and parts of the frontal lobe (medial orbitofrontal cortex and dorsolateral prefrontal cortex). However, research has been too sparse and studies have suffered from several limitations that constitute a serious obstacle to address the question of a well-established neural signature for DCD.
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Affiliation(s)
- Maëlle Biotteau
- URI Octogone-Lordat (EA 4156), Université Toulouse II Jean Jaurès , Toulouse , France
| | - Yves Chaix
- Toulouse NeuroImaging Center, INSERM, University of Toulouse Paul Sabatier, Toulouse, France; Children's Hospital, Toulouse-Purpan University Hospital, Toulouse, France
| | - Mélody Blais
- Toulouse NeuroImaging Center, INSERM, University of Toulouse Paul Sabatier , Toulouse , France
| | - Jessica Tallet
- Toulouse NeuroImaging Center, INSERM, University of Toulouse Paul Sabatier , Toulouse , France
| | - Patrice Péran
- Toulouse NeuroImaging Center, INSERM, University of Toulouse Paul Sabatier , Toulouse , France
| | - Jean-Michel Albaret
- Toulouse NeuroImaging Center, INSERM, University of Toulouse Paul Sabatier , Toulouse , France
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26
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Mosca SJ, Langevin LM, Dewey D, Innes AM, Lionel AC, Marshall CC, Scherer SW, Parboosingh JS, Bernier FP. Copy-number variations are enriched for neurodevelopmental genes in children with developmental coordination disorder. J Med Genet 2016; 53:812-819. [DOI: 10.1136/jmedgenet-2016-103818] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 07/08/2016] [Accepted: 07/11/2016] [Indexed: 01/24/2023]
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27
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Abstract
Several neurological variables have been investigated as premorbid biomarkers of vulnerability for schizophrenia and other related disorders. The current study examined whether childhood dyspraxia predicted later adult nonaffective-psychosis-spectrum disorders. From a standardized neurological examination performed with children (aged 10-13) at genetic high risk of schizophrenia and controls, several measures of dyspraxia were used to create a scale composed of face/head dyspraxia, oral articulation, ideomotor dyspraxia (clumsiness), and dressing dyspraxia (n = 244). Multinomial logistic regression showed higher scores on the dyspraxia scale predict nonaffective-psychosis-spectrum disorders relative to other psychiatric disorders and no mental illness outcomes, even after controlling for genetic risk, χ2 (4, 244) = 18.61, p < .001. Findings that symptoms of dyspraxia in childhood (reflecting abnormalities spanning functionally distinct brain networks) specifically predict adult nonaffective-psychosis-spectrum disorders are consistent with a theory of abnormal connectivity, and they highlight a marked early-stage vulnerability in the pathophysiology of nonaffective-psychosis-spectrum disorders.
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28
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Rosa Neto F, Goulardins JB, Rigoli D, Piek JP, Oliveira JAD. Motor development of children with attention deficit hyperactivity disorder. ACTA ACUST UNITED AC 2016; 37:228-34. [PMID: 26376053 DOI: 10.1590/1516-4446-2014-1533] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To compare both global and specific domains of motor development of children with attention deficit hyperactivity disorder (ADHD) with that of typically developing children. METHODS Two hundred children (50 children with clinical diagnoses of ADHD, according to the DSM-IV-TR and 150 typically developing controls), aged 5 to 10 years, participated in this cross-sectional study. The Motor Development Scale was used to assess fine and global motricity, balance, body schema, and spatial and temporal organization. RESULTS Between-group testing revealed statistically significant differences between the ADHD and control groups for all domains. The results also revealed a deficit of nearly two years in the motor development of children with ADHD compared with the normative sample. CONCLUSION The current study shows that ADHD is associated with a delay in motor development when compared to typically developing children. The results also suggested difficulties in certain motor areas for those with ADHD. These results may point to plausible mechanisms underlying the relationship between ADHD and motor difficulties.
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Affiliation(s)
- Francisco Rosa Neto
- Department of Human Movement, Universidade do Estado de Santa Catarina, Florianópolis, SC, BR
| | - Juliana B Goulardins
- Laboratory of Motor Behavior, School of Physical Education and Sport, Universidade de São Paulo, São Paulo, SP, BR
| | - Daniela Rigoli
- School of Psychology and Speech Pathology, Curtin University, Perth, AU
| | - Jan P Piek
- School of Psychology and Speech Pathology, Curtin University, Perth, AU
| | - Jorge A de Oliveira
- Laboratory of Motor Behavior, School of Physical Education and Sport, Universidade de São Paulo, São Paulo, SP, BR
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29
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Adams ILJ, Lust JM, Wilson PH, Steenbergen B. Testing predictive control of movement in children with developmental coordination disorder using converging operations. Br J Psychol 2016; 108:73-90. [DOI: 10.1111/bjop.12183] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 10/28/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Imke L. J. Adams
- Behavioural Science Institute; Radboud University Nijmegen; The Netherlands
| | - Jessica M. Lust
- Behavioural Science Institute; Radboud University Nijmegen; The Netherlands
| | - Peter H. Wilson
- School of Psychology; Australian Catholic University; Melbourne Victoria Australia
| | - Bert Steenbergen
- Behavioural Science Institute; Radboud University Nijmegen; The Netherlands
- School of Psychology; Australian Catholic University; Melbourne Victoria Australia
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30
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Kaneko M, Yamashita Y, Iramina K. Quantitative Evaluation System of Soft Neurological Signs for Children with Attention Deficit Hyperactivity Disorder. SENSORS 2016; 16:s16010116. [PMID: 26797613 PMCID: PMC4732149 DOI: 10.3390/s16010116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 12/25/2015] [Accepted: 01/07/2016] [Indexed: 11/16/2022]
Abstract
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by symptoms of inattention, hyperactivity, and impulsivity. Soft neurological signs (SNS) are minor neurological abnormalities in motor performance, and are used as one evaluation method for neurodevelopmental delays in children with ADHD. Our aim is to establish a quantitative evaluation system for children with ADHD. We focused on the arm movement called pronation and supination, which is one such soft neurological sign. Thirty three children with ADHD aged 7–11 years (27 males, six females) and twenty five adults participants aged 21–29 years old (19 males, six females) participated in our experiments. Our results suggested that the pronation and supination function in children with ADHD has a tendency to lag behind that of typically developing children by several years. From these results, our system has a possibility to objectively evaluate the neurodevelopmental delay of children with ADHD.
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Affiliation(s)
- Miki Kaneko
- Graduate School of Systems Life Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-Shi, Fukuoka 812-8582, Japan.
| | - Yushiro Yamashita
- Department of Pediatrics and Child Health, Kurume University School of Medicine, 67 Asahi-Machi, Kurume-Shi, Fukuoka 830-0011, Japan.
| | - Keiji Iramina
- Graduate School of Systems Life Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-Shi, Fukuoka 812-8582, Japan.
- Faculty of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka-Shi, Fukuoka 819-0395, Japan.
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31
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Caçola P, Ibana M, Ricard M, Gabbard C. Children with developmental coordination disorder demonstrate a spatial mismatch when estimating coincident-timing ability with tools. RESEARCH IN DEVELOPMENTAL DISABILITIES 2016; 48:124-131. [PMID: 26555384 DOI: 10.1016/j.ridd.2015.10.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 10/20/2015] [Accepted: 10/23/2015] [Indexed: 06/05/2023]
Abstract
Coincident timing or interception ability can be defined as the capacity to precisely time sensory input and motor output. This study compared accuracy of typically developing (TD) children and those with Developmental Coordination Disorder (DCD) on a task involving estimation of coincident timing with their arm and various tool lengths. Forty-eight (48) participants performed two experiments where they imagined intercepting a target moving toward (Experiment 1) and target moving away (Experiment 2) from them in 5 conditions with their arm and tool lengths: arm, 10, 20, 30, and 40 cm. In Experiment 1, the DCD group overestimated interception points approximately twice as much as the TD group, and both groups overestimated consistently regardless of the tool used. Results for Experiment 2 revealed that those with DCD underestimated about three times as much as the TD group, with the exception of when no tool was used. Overall, these results indicate that children with DCD are less accurate with estimation of coincident-timing; which might in part explain their difficulties with common motor activities such as catching a ball or striking a baseball pitch.
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Affiliation(s)
- Priscila Caçola
- Department of Kinesiology, University of Texas at Arlington, United States.
| | - Melvin Ibana
- Department of Kinesiology, University of Texas at Arlington, United States
| | - Mark Ricard
- Department of Kinesiology, University of Texas at Arlington, United States
| | - Carl Gabbard
- Department of Health and Kinesiology, Texas A&M University, United States
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32
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Miles CAL, Wood G, Vine SJ, Vickers JN, Wilson MR. Quiet eye training aids the long-term learning of throwing and catching in children: Preliminary evidence for a predictive control strategy. Eur J Sport Sci 2015; 17:100-108. [DOI: 10.1080/17461391.2015.1122093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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33
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Reynolds JE, Thornton AL, Elliott C, Williams J, Lay BS, Licari MK. A systematic review of mirror neuron system function in developmental coordination disorder: Imitation, motor imagery, and neuroimaging evidence. RESEARCH IN DEVELOPMENTAL DISABILITIES 2015; 47:234-283. [PMID: 26458259 DOI: 10.1016/j.ridd.2015.09.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 09/15/2015] [Accepted: 09/16/2015] [Indexed: 06/05/2023]
Abstract
PURPOSE The aim of this systematic review was to investigate the evidence of abnormal functioning of the mirror neuron system (MNS) in children and adults with developmental coordination disorder (DCD), through examination of imitation, motor imagery, and neuroimaging literature. METHODS The following databases were comprehensively searched for relevant articles: CINAHL Plus, Embase, MEDLINE, PsycINFO, Pubmed, and Web of Science. Full-text articles of all potentially relevant citations were obtained and assessed for eligibility by two authors. Outcome measures of interest at a motor behaviour level were any measures of imitation or motor imagery proficiency and, at a neurological level, were any measures of neural activity in MNS brain regions. Due to differences in outcome measures between studies and the variables reported, a narrative review was undertaken to synthesise findings from the studies. RESULTS Overall, 31 articles met the inclusion criteria. Children and adults with DCD display deficits imitating meaningful and novel gestures and demonstrate different response patterns to controls when undertaking complex motor imagery tasks. Children with DCD present reduced activation and connectivity of frontal, parietal, and temporal MNS regions. CONCLUSIONS Preliminary evidence indicates some deficit in the functioning of the MNS at a motor behaviour and neurological level. As no published neuroimaging studies have been designed specifically to explore MNS function, these results must be interpreted with caution. Further research to explore the MNS hypothesis in greater detail, particularly from a neuroimaging perspective, has the potential to provide information on the underlying mechanisms of DCD, inform future research into the aetiology of this disorder, and inform intervention approaches.
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Affiliation(s)
- Jess E Reynolds
- School of Sport Science, Exercise & Health, The University of Western Australia, Australia.
| | - Ashleigh L Thornton
- School of Sport Science, Exercise & Health, The University of Western Australia, Australia
| | | | - Jacqueline Williams
- Institute of Sport, Exercise and Active Living, and School of Sport and Exercise Science, Victoria University, Melbourne, Australia
| | - Brendan S Lay
- School of Sport Science, Exercise & Health, The University of Western Australia, Australia
| | - Melissa K Licari
- School of Sport Science, Exercise & Health, The University of Western Australia, Australia
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Ferguson G, Wilson P, Smits-Engelsman B. The influence of task paradigm on motor imagery ability in children with Developmental Coordination Disorder. Hum Mov Sci 2015; 44:81-90. [DOI: 10.1016/j.humov.2015.08.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 06/30/2015] [Accepted: 08/23/2015] [Indexed: 11/26/2022]
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35
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The ability of 6- to 8-year-old children to use motor imagery in a goal-directed pointing task. J Exp Child Psychol 2015; 139:221-33. [DOI: 10.1016/j.jecp.2015.06.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 06/15/2015] [Accepted: 06/15/2015] [Indexed: 11/17/2022]
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Gomez A, Sirigu A. Developmental coordination disorder: core sensori-motor deficits, neurobiology and etiology. Neuropsychologia 2015; 79:272-87. [PMID: 26423663 DOI: 10.1016/j.neuropsychologia.2015.09.032] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 09/24/2015] [Accepted: 09/25/2015] [Indexed: 12/31/2022]
Abstract
Among developmental disorders, DCD is one of the least studied and less understood one (Bishop, 2010). This review summarizes the current understanding of developmental coordination disorder in neuropsychology with a focus mainly on high level sensorimotor impairments, its etiology and its neural bases. We summarize these core deficits in the framework of an influent motor control model (Blakemore et al., 2002). DCD has several environmental risk factors which probably interplay with genetic factors but those have not been sufficiently identified. High-level sensori-motor deficits are probably multifactorial in DCD and involve predictive coding deficits as well as weaknesses in perceptual and sensory integration. At the brain level, DCD is associated with impaired structure and functions within the motor network. Throughout the review we highlight exciting new findings as well as potential future lines of research to provide a more comprehensive understanding of this disorder.
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Affiliation(s)
- Alice Gomez
- Centre de Neuroscience Cognitive, CNRS, UMR 5229, 67 Boulevard Pinel, 69675 Bron, France; Université Claude Bernard Lyon 1, ESPE, Lyon, France.
| | - Angela Sirigu
- Centre de Neuroscience Cognitive, CNRS, UMR 5229, 67 Boulevard Pinel, 69675 Bron, France.
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Banca P, Sousa T, Duarte IC, Castelo-Branco M. Visual motion imagery neurofeedback based on the hMT+/V5 complex: evidence for a feedback-specific neural circuit involving neocortical and cerebellar regions. J Neural Eng 2015; 12:066003. [PMID: 26401684 DOI: 10.1088/1741-2560/12/6/066003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Current approaches in neurofeedback/brain-computer interface research often focus on identifying, on a subject-by-subject basis, the neural regions that are best suited for self-driven modulation. It is known that the hMT+/V5 complex, an early visual cortical region, is recruited during explicit and implicit motion imagery, in addition to real motion perception. This study tests the feasibility of training healthy volunteers to regulate the level of activation in their hMT+/V5 complex using real-time fMRI neurofeedback and visual motion imagery strategies. APPROACH We functionally localized the hMT+/V5 complex to further use as a target region for neurofeedback. An uniform strategy based on motion imagery was used to guide subjects to neuromodulate hMT+/V5. MAIN RESULTS We found that 15/20 participants achieved successful neurofeedback. This modulation led to the recruitment of a specific network as further assessed by psychophysiological interaction analysis. This specific circuit, including hMT+/V5, putative V6 and medial cerebellum was activated for successful neurofeedback runs. The putamen and anterior insula were recruited for both successful and non-successful runs. SIGNIFICANCE Our findings indicate that hMT+/V5 is a region that can be modulated by focused imagery and that a specific cortico-cerebellar circuit is recruited during visual motion imagery leading to successful neurofeedback. These findings contribute to the debate on the relative potential of extrinsic (sensory) versus intrinsic (default-mode) brain regions in the clinical application of neurofeedback paradigms. This novel circuit might be a good target for future neurofeedback approaches that aim, for example, the training of focused attention in disorders such as ADHD.
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Affiliation(s)
- Paula Banca
- Institute for Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, and Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Portugal. PhD Programme in Experimental Biology and Biomedicine, Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
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Smits-Engelsman B, Schoemaker M, Delabastita T, Hoskens J, Geuze R. Diagnostic criteria for DCD: Past and future. Hum Mov Sci 2015; 42:293-306. [DOI: 10.1016/j.humov.2015.03.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Spruijt S, van der Kamp J, Steenbergen B. Current insights in the development of children's motor imagery ability. Front Psychol 2015; 6:787. [PMID: 26113832 PMCID: PMC4461854 DOI: 10.3389/fpsyg.2015.00787] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 05/26/2015] [Indexed: 11/30/2022] Open
Abstract
Over the last two decades, the number of studies on motor imagery in children has witnessed a large expansion. Most studies used the hand laterality judgment paradigm or the mental chronometry paradigm to examine motor imagery ability. The main objective of the current review is to collate these studies to provide a more comprehensive insight in children’s motor imagery development and its age of onset. Motor imagery is a form of motor cognition and aligns with forward (or predictive) models of motor control. Studying age-related differences in motor imagery ability in children therefore provides insight in underlying processes of motor development during childhood. Another motivation for studying age-related differences in motor imagery is that in order to effectively apply motor imagery training in children (with motor impairments), it is pertinent to first establish the age at which children are actually able to perform motor imagery. Overall, performance in the imagery tasks develops between 5 and 12 years of age. The age of motor imagery onset, however, remains equivocal, as some studies indicate that children of 5 to 7 years old can already enlist motor imagery in an implicit motor imagery task, whereas other studies using explicit instructions revealed that children do not use motor imagery before the age of 10. From the findings of the current study, we can conclude that motor imagery training is potentially a feasible method for pediatric rehabilitation in children from 5 years on. We suggest that younger children are most likely to benefit from motor imagery training that is presented in an implicit way. Action observation training might be a beneficial adjunct to implicit motor imagery training. From 10 years of age, more explicit forms of motor imagery training can be effectively used.
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Affiliation(s)
- Steffie Spruijt
- Behavioural Science Institute, Radboud University Nijmegen Nijmegen, Netherlands
| | - John van der Kamp
- Research Institute Move, VU University Amsterdam Amsterdam, Netherlands ; Institute of Human Performance, University of Hong Kong Hong Kong, China
| | - Bert Steenbergen
- Behavioural Science Institute, Radboud University Nijmegen Nijmegen, Netherlands ; School of Psychology, Australian Catholic University Melbourne, Australia
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Spruijt S, Jongsma MLA, van der Kamp J, Steenbergen B. Predictive models to determine imagery strategies employed by children to judge hand laterality. PLoS One 2015; 10:e0126568. [PMID: 25965271 PMCID: PMC4428702 DOI: 10.1371/journal.pone.0126568] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 03/25/2015] [Indexed: 11/18/2022] Open
Abstract
A commonly used paradigm to study motor imagery is the hand laterality judgment task. The present study aimed to determine which strategies young children employ to successfully perform this task. Children of 5 to 8 years old (N = 92) judged laterality of back and palm view hand pictures in different rotation angles. Response accuracy and response duration were registered. Response durations of the trials with a correct judgment were fitted to a-priori defined predictive sinusoid models, representing different strategies to successfully perform the hand laterality judgment task. The first model predicted systematic changes in response duration as a function of rotation angle of the displayed hand. The second model predicted that response durations are affected by biomechanical constraints of hand rotation. If observed data could be best described by the first model, this would argue for a mental imagery strategy that does not involve motor processes to solve the task. The second model reflects a motor imagery strategy to solve the task. In line with previous research, we showed an age-related increase in response accuracy and decrease in response duration in children. Observed data for both back and palm view showed that motor imagery strategies were used to perform hand laterality judgments, but that not all the children use these strategies (appropriately) at all times. A direct comparison of response duration patterns across age sheds new light on age-related differences in the strategies employed to solve the task. Importantly, the employment of the motor imagery strategy for successful task performance did not change with age.
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Affiliation(s)
- Steffie Spruijt
- Radboud University Nijmegen, Behavioural Science Institute, Nijmegen, The Netherlands
- * E-mail:
| | | | - John van der Kamp
- VU University Amsterdam, Research Institute Move, Amsterdam, The Netherlands
- University of Hong Kong, Institute of Human Performance, Hong Kong, China
| | - Bert Steenbergen
- Radboud University Nijmegen, Behavioural Science Institute, Nijmegen, The Netherlands
- Australian Catholic University, School of Psychology, Melbourne, Australia
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Kaiser ML, Schoemaker MM, Albaret JM, Geuze RH. What is the evidence of impaired motor skills and motor control among children with attention deficit hyperactivity disorder (ADHD)? Systematic review of the literature. RESEARCH IN DEVELOPMENTAL DISABILITIES 2015; 36C:338-357. [PMID: 25462494 DOI: 10.1016/j.ridd.2014.09.023] [Citation(s) in RCA: 192] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/08/2014] [Accepted: 09/10/2014] [Indexed: 05/16/2023]
Abstract
This article presents a review of the studies that have analysed the motor skills of ADHD children without medication and the influence of medication on their motor skills. The following two questions guided the study: What is the evidence of impairment of motor skills and aspects of motor control among children with ADHD aged between 6 and 16 years? What are the effects of ADHD medication on motor skills and motor control? The following keywords were introduced in the main databases: attention disorder and/or ADHD, motor skills and/or handwriting, children, medication. Of the 45 articles retrieved, 30 described motor skills of children with ADHD and 15 articles analysed the influence of ADHD medication on motor skills and motor control. More than half of the children with ADHD have difficulties with gross and fine motor skills. The children with ADHD inattentive subtype seem to present more impairment of fine motor skills, slow reaction time, and online motor control during complex tasks. The proportion of children with ADHD who improved their motor skills to the normal range by using medication varied from 28% to 67% between studies. The children who still show motor deficit while on medication might meet the diagnostic criteria of developmental coordination disorder (DCD). It is important to assess motor skills among children with ADHD because of the risk of reduced participation in activities of daily living that require motor coordination and attention.
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Affiliation(s)
- M-L Kaiser
- Clinical and Developmental Neuropsychology, University of Groningen, Grote Kruisstraat 2/1, 9712 TS Groningen, The Netherlands; University Hospital of Lausanne, Pierre-Decker 5, 1011 Lausanne, Switzerland.
| | - M M Schoemaker
- University of Groningen, University Medical Center Groningen, Centre for Human Movement Science, PO Box 30,001, 9700 RB Groningen, The Netherlands
| | - J-M Albaret
- University of Toulouse III - Paul Sabatier, PRISSMH-EA4561, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France
| | - R H Geuze
- Clinical and Developmental Neuropsychology, University of Groningen, Grote Kruisstraat 2/1, 9712 TS Groningen, The Netherlands
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Assessing motor imagery using the hand rotation task: Does performance change across childhood? Hum Mov Sci 2014; 35:50-65. [DOI: 10.1016/j.humov.2014.03.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 01/21/2014] [Accepted: 03/31/2014] [Indexed: 11/20/2022]
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Caçola P, Gabbard C, Ibana M, Romero M. Tool length influences reach distance estimation via motor imagery in children with developmental coordination disorder. J Clin Exp Neuropsychol 2014; 36:596-606. [DOI: 10.1080/13803395.2014.918092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Using the ICF Framework to Explore the Multiple Interacting Factors Associated with Developmental Coordination Disorder. CURRENT DEVELOPMENTAL DISORDERS REPORTS 2014. [DOI: 10.1007/s40474-014-0013-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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