Skip to main content
Top
Published in: Trials 1/2015

Open Access 01-12-2015 | Study protocol

Cognitive computer training in children with attention deficit hyperactivity disorder (ADHD) versus no intervention: study protocol for a randomized controlled trial

Authors: Aida Bikic, James F. Leckman, Jane Lindschou, Torben Ø. Christensen, Søren Dalsgaard

Published in: Trials | Issue 1/2015

Login to get access

Abstract

Background

Attention Deficit Hyperactivity Disorder (ADHD) is a common neurodevelopmental disorder characterized by symptoms of inattention and impulsivity and/or hyperactivity and a range of cognitive dysfunctions. Pharmacological treatment may be beneficial; however, many affected individuals continue to have difficulties with cognitive functions despite medical treatment, and up to 30 % do not respond to pharmacological treatment. Inadequate medical compliance and the long-term effects of treatment make it necessary to explore nonpharmacological and supplementary treatments for ADHD. Treatment of cognitive dysfunctions may prove particularly important because of the impact of these dysfunctions on the ability to cope with everyday life. Lately, several trials have shown promising results for cognitive computer training, often referred to as cognitive training, which focuses on particular parts of cognition, mostly on the working memory or attention but with poor generalization of training on other cognitive functions and functional outcome. Children with ADHD have a variety of cognitive dysfunctions, and it is important that cognitive training target multiple cognitive functions.

Methods/Design

This multicenter randomized clinical superiority trial aims to investigate the effect of “ACTIVATE™,” a computer program designed to improve a range of cognitive skills and ADHD symptoms. A total of 122 children with ADHD, aged 6 to 13 years, will be randomized to an intervention or a control group. The intervention group will be asked to use ACTIVATE™ at home 40 minutes per day, 6 days per week for 8 weeks. Both intervention and control group will receive treatment as usual. Outcome measures will assess cognitive functions, symptoms, and behavioral and functional measures before and after the 8 weeks of training and in a 12- and 24-week follow-up.

Discussion

Results of this trial will provide useful information on the effectiveness of computer training focusing on several cognitive functions. Cognitive training has the potential to reduce cognitive dysfunctions and to become a new treatment option, which can promote a more normal neural development in young children with ADHD and thus reduce cognitive dysfunctions and symptoms. This could help children with ADHD to perform better in everyday life and school.

Trial registration

ClinicalTrials.gov: NCT01752530, date of registration: 10 December 2012
Literature
1.
go back to reference American Psychiatric Association. Diagnostic and statistical manual of mental disorders, fourth edition, text revision (DSM-IV-TR). 4th ed, text revision. Washington, DC: American Psychiatric Association; 2000 American Psychiatric Association. Diagnostic and statistical manual of mental disorders, fourth edition, text revision (DSM-IV-TR). 4th ed, text revision. Washington, DC: American Psychiatric Association; 2000
2.
go back to reference American Psychiatric Association. Diagnostic and statistical manual of mental disorders (5th edition). Arlington: American Psychiatric Publishing; 2013. American Psychiatric Association. Diagnostic and statistical manual of mental disorders (5th edition). Arlington: American Psychiatric Publishing; 2013.
7.
9.
go back to reference Maibing CM, Pedersen CB, Benros ME, Mortensen PB, Dalsgaard S, Nordentoft M. Risk of schizophrenia increases after all child and adolescent psychiatric disorders – a nationwide study, Schizophr Bull. 2014. epub September 5. Maibing CM, Pedersen CB, Benros ME, Mortensen PB, Dalsgaard S, Nordentoft M. Risk of schizophrenia increases after all child and adolescent psychiatric disorders – a nationwide study, Schizophr Bull. 2014. epub September 5.
10.
go back to reference Dalsgaard S, Mortensen PB, Frydenberg M, Thomsen PH. Long-term criminal outcome of children with attention deficit hyperactivity disorder. Crim Behav Ment Health. 2013;23:86–98. doi:10.1002/cbm.1860.CrossRefPubMed Dalsgaard S, Mortensen PB, Frydenberg M, Thomsen PH. Long-term criminal outcome of children with attention deficit hyperactivity disorder. Crim Behav Ment Health. 2013;23:86–98. doi:10.​1002/​cbm.​1860.CrossRefPubMed
11.
go back to reference Mannuzza S, Klein RG, Bessler A, Malloy P, LaPadula M. Adult outcome of hyperactive boys. Educational achievement, occupational rank, and psychiatric status. Arch Gen Psychiatry. 1993;50:565–76.CrossRefPubMed Mannuzza S, Klein RG, Bessler A, Malloy P, LaPadula M. Adult outcome of hyperactive boys. Educational achievement, occupational rank, and psychiatric status. Arch Gen Psychiatry. 1993;50:565–76.CrossRefPubMed
12.
go back to reference Dalsgaard S, Østergaard SD, Leckman JF, Mortensen PB, Pedersen MG. Mortality in children, adolescents, and adults with attention deficit hyperactivity disorder: a nationwide cohort study. Lancet. 2015. doi:10.1016/S0140-6736(14)61684-6. Dalsgaard S, Østergaard SD, Leckman JF, Mortensen PB, Pedersen MG. Mortality in children, adolescents, and adults with attention deficit hyperactivity disorder: a nationwide cohort study. Lancet. 2015. doi:10.​1016/​S0140-6736(14)61684-6.
13.
go back to reference Faraone SV. Genetics of childhood disorders: XX. ADHD, Part 4: is ADHD genetically heterogeneous? J Am Acad Child Adolesc Psychiatry. 2000;39:1455–7.CrossRefPubMed Faraone SV. Genetics of childhood disorders: XX. ADHD, Part 4: is ADHD genetically heterogeneous? J Am Acad Child Adolesc Psychiatry. 2000;39:1455–7.CrossRefPubMed
14.
go back to reference Shaw P, Eckstrand K, Sharp W, Blumenthal J, Lerch JP, Greenstein D, et al. Attention-deficit/hyperactivity disorder is characterized by a delay in cortical maturation. Proc Natl Acad Sci U S A. 2007;104:19649–54.PubMedCentralCrossRefPubMed Shaw P, Eckstrand K, Sharp W, Blumenthal J, Lerch JP, Greenstein D, et al. Attention-deficit/hyperactivity disorder is characterized by a delay in cortical maturation. Proc Natl Acad Sci U S A. 2007;104:19649–54.PubMedCentralCrossRefPubMed
15.
go back to reference Castellanos FX, Lee PP, Sharp W, Jeffries NO, Greenstein DK, Clasen LS, et al. Developmental trajectories of brain volume abnormalities in children and adolescents with attention-deficit/hyperactivity disorder. JAMA. 2002;288:1740–8.CrossRefPubMed Castellanos FX, Lee PP, Sharp W, Jeffries NO, Greenstein DK, Clasen LS, et al. Developmental trajectories of brain volume abnormalities in children and adolescents with attention-deficit/hyperactivity disorder. JAMA. 2002;288:1740–8.CrossRefPubMed
16.
go back to reference Gopin CB, Healey DM. The neural and neurocognitive determinants of ADHD. J Infant Child Adolesc Psychother. 2011;10:13–31.CrossRef Gopin CB, Healey DM. The neural and neurocognitive determinants of ADHD. J Infant Child Adolesc Psychother. 2011;10:13–31.CrossRef
18.
go back to reference Doyle AE, Willcutt EG, Seidman LJ, Biederman J, Chouinard VA, Silva J, et al. Attention-deficit/hyperactivity disorder endophenotypes. Biol Psychiatry. 2005;57:1324–35.CrossRefPubMed Doyle AE, Willcutt EG, Seidman LJ, Biederman J, Chouinard VA, Silva J, et al. Attention-deficit/hyperactivity disorder endophenotypes. Biol Psychiatry. 2005;57:1324–35.CrossRefPubMed
20.
go back to reference Ceci SJ, Tishman J. Hyperactivity and incidental memory: evidence for attentional diffusion. Child Dev. 1984;55:2192–203.CrossRefPubMed Ceci SJ, Tishman J. Hyperactivity and incidental memory: evidence for attentional diffusion. Child Dev. 1984;55:2192–203.CrossRefPubMed
21.
go back to reference Landau S, Lorch EP, Milich R. Visual attention to and comprehension of television in attention-deficit hyperactivity disordered and normal boys. Child Dev. 1992;63:928–37.CrossRefPubMed Landau S, Lorch EP, Milich R. Visual attention to and comprehension of television in attention-deficit hyperactivity disordered and normal boys. Child Dev. 1992;63:928–37.CrossRefPubMed
22.
go back to reference Hooks K, Milich R, Lorch EP. Sustained and selective attention in boys with attention deficit hyperactivity disorder. J Clin Child Psychol. 1994;23:69–77.CrossRef Hooks K, Milich R, Lorch EP. Sustained and selective attention in boys with attention deficit hyperactivity disorder. J Clin Child Psychol. 1994;23:69–77.CrossRef
23.
go back to reference Brodeur DA, Pond M. The development of selective attention in children with attention deficit hyperactivity disorder. J Abnorm Child Psychol. 2001;29:229–39.CrossRefPubMed Brodeur DA, Pond M. The development of selective attention in children with attention deficit hyperactivity disorder. J Abnorm Child Psychol. 2001;29:229–39.CrossRefPubMed
24.
go back to reference Nigg JT, Butler KM, Huang-Pollock CL, Henderson JM. Inhibitory processes in adults with persistent childhood onset ADHD. J Consult Clin Psychol. 2002;70:153–7.CrossRefPubMed Nigg JT, Butler KM, Huang-Pollock CL, Henderson JM. Inhibitory processes in adults with persistent childhood onset ADHD. J Consult Clin Psychol. 2002;70:153–7.CrossRefPubMed
26.
27.
go back to reference Weiss G, Hechtman LT. Hyperactive children grown up. New York: Guilford; 1993. Weiss G, Hechtman LT. Hyperactive children grown up. New York: Guilford; 1993.
30.
go back to reference Waschbusch DA, Hill GP, Lilienfield SO, Jay Lynn S, Lohr JM. Empirically supported, promising and unsupported treatments for children with Attention-Deficit/Hyperactivity Disorder. In: Science and pseudoscience in clinical psychology. New York: Guilford Press; 2003. Waschbusch DA, Hill GP, Lilienfield SO, Jay Lynn S, Lohr JM. Empirically supported, promising and unsupported treatments for children with Attention-Deficit/Hyperactivity Disorder. In: Science and pseudoscience in clinical psychology. New York: Guilford Press; 2003.
36.
go back to reference Castellanos FX, Giedd JN, Marsh WL, Hamburger SD, Vaituzis AC, Dickstein DP, et al. Quantitative brain magnetic resonance imaging in attention-deficit hyperactivity disorder. Arch Gen Psychiatry. 1996;53:607–16.CrossRefPubMed Castellanos FX, Giedd JN, Marsh WL, Hamburger SD, Vaituzis AC, Dickstein DP, et al. Quantitative brain magnetic resonance imaging in attention-deficit hyperactivity disorder. Arch Gen Psychiatry. 1996;53:607–16.CrossRefPubMed
37.
go back to reference Filipek PA, Semrud-Clikeman M, Steingard RJ, Renshaw PF, Kennedy DN, Biederman J. Volumetric MRI analysis comparing subjects having attention-deficit hyperactivity disorder with normal controls. Neurology. 1997;48:589–601.CrossRefPubMed Filipek PA, Semrud-Clikeman M, Steingard RJ, Renshaw PF, Kennedy DN, Biederman J. Volumetric MRI analysis comparing subjects having attention-deficit hyperactivity disorder with normal controls. Neurology. 1997;48:589–601.CrossRefPubMed
38.
39.
go back to reference Kerns KA, Eso K, Thomson J. Investigation of a direct intervention for improving attention in young children with ADHD. Dev Neuropsychol. 1999;16:273–95.CrossRef Kerns KA, Eso K, Thomson J. Investigation of a direct intervention for improving attention in young children with ADHD. Dev Neuropsychol. 1999;16:273–95.CrossRef
40.
go back to reference Murray DW, Skinner AT, Malone PS. A randomized trial of two promising computer-based interventions for students with attention difficulties J Abnorm Child Psychol. 2010 Jan;38(1):131-42. doi:10.1007/s10802-009-9353-x. Murray DW, Skinner AT, Malone PS. A randomized trial of two promising computer-based interventions for students with attention difficulties J Abnorm Child Psychol. 2010 Jan;38(1):131-42. doi:10.​1007/​s10802-009-9353-x.
44.
go back to reference Shipstead Z, Hicks KL, Engle RW. Cogmed working memory training: does the evidence support the claims? J Appl Res Mem Cogn. 2012;1:185–93.CrossRef Shipstead Z, Hicks KL, Engle RW. Cogmed working memory training: does the evidence support the claims? J Appl Res Mem Cogn. 2012;1:185–93.CrossRef
46.
go back to reference Gray SA, Chaban P, Martinussen R, Goldberg R, Gotlieb H, Kronitz R, et al. Effects of a computerized working memory training program on working memory, attention, and academics in adolescents with severe LD and comorbid ADHD: a randomized controlled trial. J Child Psychol Psychiatry. 2012;53:1277–84. doi:10.1111/j.1469-7610.2012.02592.x.CrossRefPubMed Gray SA, Chaban P, Martinussen R, Goldberg R, Gotlieb H, Kronitz R, et al. Effects of a computerized working memory training program on working memory, attention, and academics in adolescents with severe LD and comorbid ADHD: a randomized controlled trial. J Child Psychol Psychiatry. 2012;53:1277–84. doi:10.​1111/​j.​1469-7610.​2012.​02592.​x.CrossRefPubMed
47.
go back to reference Chacko A, Bedard AC, Marks DJ, Feirsen N, Uderman JZ, Chimiklis A, et al. A randomized clinical trial of Cogmed Working Memory Training in school-age children with ADHD: a replication in a diverse sample using a control condition. J Child Psychol Psychiatry. 2014;55:247–55. doi:10.1111/jcpp.12146.PubMedCentralCrossRefPubMed Chacko A, Bedard AC, Marks DJ, Feirsen N, Uderman JZ, Chimiklis A, et al. A randomized clinical trial of Cogmed Working Memory Training in school-age children with ADHD: a replication in a diverse sample using a control condition. J Child Psychol Psychiatry. 2014;55:247–55. doi:10.​1111/​jcpp.​12146.PubMedCentralCrossRefPubMed
48.
go back to reference Redick TS, Shipstead Z, Harrison TL, Hicks KL, Fried DE, Hambrick DZ, et al. No evidence of intelligence improvement after working memory training: a randomized, placebo-controlled study. J Exp Psychol Gen. 2013;142:359–79. doi:10.1037/a0029082.CrossRefPubMed Redick TS, Shipstead Z, Harrison TL, Hicks KL, Fried DE, Hambrick DZ, et al. No evidence of intelligence improvement after working memory training: a randomized, placebo-controlled study. J Exp Psychol Gen. 2013;142:359–79. doi:10.​1037/​a0029082.CrossRefPubMed
49.
go back to reference van der Oord S, Ponsioen AJ, Geurts HM, Ten Brink EL, Prins PJ. A pilot study of the efficacy of a computerized executive functioning remediation training with game elements for children with ADHD in an outpatient setting: outcome on parent- and teacher-rated executive functioning and ADHD behavior. J Atten Disord. 2014;18:699–712. doi:10.1177/1087054712453167.CrossRefPubMed van der Oord S, Ponsioen AJ, Geurts HM, Ten Brink EL, Prins PJ. A pilot study of the efficacy of a computerized executive functioning remediation training with game elements for children with ADHD in an outpatient setting: outcome on parent- and teacher-rated executive functioning and ADHD behavior. J Atten Disord. 2014;18:699–712. doi:10.​1177/​1087054712453167​.CrossRefPubMed
51.
go back to reference Chevalier N, Poissant H, Bergeron H, Girard-Lajoie A. The effect of visual-motor imagery training on CPT performance in children with attention deficit hyperactivity disorder. J Cogn Educ Psychol. 2003;3:120–36.CrossRef Chevalier N, Poissant H, Bergeron H, Girard-Lajoie A. The effect of visual-motor imagery training on CPT performance in children with attention deficit hyperactivity disorder. J Cogn Educ Psychol. 2003;3:120–36.CrossRef
54.
go back to reference Steiner NJ, Sheldrick RC, Gotthelf D, Perrin EC. Computer-based attention training in the schools for children with attention deficit/hyperactivity disorder: a preliminary trial. Clin Pediatr (Phila). 2011;50:615–22. doi:10.1177/0009922810397887.CrossRef Steiner NJ, Sheldrick RC, Gotthelf D, Perrin EC. Computer-based attention training in the schools for children with attention deficit/hyperactivity disorder: a preliminary trial. Clin Pediatr (Phila). 2011;50:615–22. doi:10.​1177/​0009922810397887​.CrossRef
55.
go back to reference Hoekzema E, Carmona S, Tremols V, Gispert JD, Guitart M, Fauquet J, et al. Enhanced neural activity in frontal and cerebellar circuits after cognitive training in children with attention-deficit/hyperactivity disorder. Hum Brain Mapp. 2010;31:1942–50. doi:10.1002/hbm.20988.CrossRefPubMed Hoekzema E, Carmona S, Tremols V, Gispert JD, Guitart M, Fauquet J, et al. Enhanced neural activity in frontal and cerebellar circuits after cognitive training in children with attention-deficit/hyperactivity disorder. Hum Brain Mapp. 2010;31:1942–50. doi:10.​1002/​hbm.​20988.CrossRefPubMed
56.
go back to reference Hoekzema E, Carmona S, Ramos-Quiroga JA, Barba E, Bielsa A, Tremols V, et al. Training-induced neuroanatomical plasticity in ADHD: a tensor-based morphometric study. Hum Brain Mapp. 2011;32:1741–9. doi:10.1002/hbm.21143.CrossRefPubMed Hoekzema E, Carmona S, Ramos-Quiroga JA, Barba E, Bielsa A, Tremols V, et al. Training-induced neuroanatomical plasticity in ADHD: a tensor-based morphometric study. Hum Brain Mapp. 2011;32:1741–9. doi:10.​1002/​hbm.​21143.CrossRefPubMed
58.
go back to reference Obel C, Dalsgaard S, Stax HP, Bilenberg N. Strengths and Difficulties Questionnaire (SDQ-Dan). A new instrument for psychopathologic screening of children aged 4–16 years. Ugeskr Laeger. 2003;165:462–5.PubMed Obel C, Dalsgaard S, Stax HP, Bilenberg N. Strengths and Difficulties Questionnaire (SDQ-Dan). A new instrument for psychopathologic screening of children aged 4–16 years. Ugeskr Laeger. 2003;165:462–5.PubMed
59.
go back to reference Goodman R, Ford T, Simmons H, Gatward R, Meltzer H. Using the Strengths and Difficulties Questionnaire (SDQ) to screen for child psychiatric disorders in a community sample. The British Journal of Psychiatry Dec. 2000:177(6);534-539; doi:10.1192/bjp.177.6.534. Goodman R, Ford T, Simmons H, Gatward R, Meltzer H. Using the Strengths and Difficulties Questionnaire (SDQ) to screen for child psychiatric disorders in a community sample. The British Journal of Psychiatry Dec. 2000:177(6);534-539; doi:10.​1192/​bjp.​177.​6.​534.
60.
go back to reference Goodman R, Ford T, Richards H, Gatward R, Meltzer H. The development and well-being assessment: description and initial validation of an integrated assessment of child and adolescent psychopathology. J Child Psychol Psychiatry. 2000;41(5):645–55.CrossRefPubMed Goodman R, Ford T, Richards H, Gatward R, Meltzer H. The development and well-being assessment: description and initial validation of an integrated assessment of child and adolescent psychopathology. J Child Psychol Psychiatry. 2000;41(5):645–55.CrossRefPubMed
61.
go back to reference Goodman R. The strengths and difficulties questionnaire: a research note. J Child Psychol Psychiatry. 1997;38:581–6.CrossRefPubMed Goodman R. The strengths and difficulties questionnaire: a research note. J Child Psychol Psychiatry. 1997;38:581–6.CrossRefPubMed
62.
go back to reference Kaufman J, Birmaher B, Brent D, Rao U, Flynn C, Moreci P, et al. Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version (K-SADS-PL): initial reliability and validity data. J Am Acad Child Adolesc Psychiatry. 1997;36:980–8.CrossRefPubMed Kaufman J, Birmaher B, Brent D, Rao U, Flynn C, Moreci P, et al. Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version (K-SADS-PL): initial reliability and validity data. J Am Acad Child Adolesc Psychiatry. 1997;36:980–8.CrossRefPubMed
63.
go back to reference Reynolds R, Kamphaus C. Reynolds intellectual assessment scales and Reynolds intellectual screening test professional manual. Lutz, FL: Psychological Assessment Resources; 2003. Reynolds R, Kamphaus C. Reynolds intellectual assessment scales and Reynolds intellectual screening test professional manual. Lutz, FL: Psychological Assessment Resources; 2003.
64.
go back to reference Luciana M. Practitioner review: computerized assessment of neuropsychological function in children: clinical and research applications of the Cambridge Neuropsychological Testing Automated Battery (CANTAB). J Child Psychol Psychiatry. 2003;44:649–63.CrossRefPubMed Luciana M. Practitioner review: computerized assessment of neuropsychological function in children: clinical and research applications of the Cambridge Neuropsychological Testing Automated Battery (CANTAB). J Child Psychol Psychiatry. 2003;44:649–63.CrossRefPubMed
67.
go back to reference DuPaul GJ, Reid R, Anastopoulos AD, Lambert MC, Watkins MW, Power TJ. Parent ratings of attention-deficit/hyperactivity disorder symptoms: factor structure and normative data. J Psychopathol Behav Assess. 1998;20:83–102.CrossRef DuPaul GJ, Reid R, Anastopoulos AD, Lambert MC, Watkins MW, Power TJ. Parent ratings of attention-deficit/hyperactivity disorder symptoms: factor structure and normative data. J Psychopathol Behav Assess. 1998;20:83–102.CrossRef
71.
go back to reference Dmitrienko A, Tamhane AC, Bretz F. Multiple testing problems in pharmaceutical statistics. Boca Raton, FL: Chapman and Hall/CRC; 2009. Dmitrienko A, Tamhane AC, Bretz F. Multiple testing problems in pharmaceutical statistics. Boca Raton, FL: Chapman and Hall/CRC; 2009.
72.
73.
go back to reference DeMets DL, Lan KK. Interim analysis: the alpha spending function approach. Stat Med. 1994;13:1341–52. discussion 1353–6.CrossRefPubMed DeMets DL, Lan KK. Interim analysis: the alpha spending function approach. Stat Med. 1994;13:1341–52. discussion 1353–6.CrossRefPubMed
75.
go back to reference Thorlund K, Engstrøm J, Wetterslev J, Brok J, Imberger G, Gluud C, et al. User manual for trial sequential analysis (TSA). Copenhagen: Copenhagen Trial Unit, Centre for Clinical Intervention Research; 2011. Thorlund K, Engstrøm J, Wetterslev J, Brok J, Imberger G, Gluud C, et al. User manual for trial sequential analysis (TSA). Copenhagen: Copenhagen Trial Unit, Centre for Clinical Intervention Research; 2011.
76.
go back to reference Wetterslev J, Thorlund K, Brok J, Gluud C. Trial sequential analysis may establish when firm evidence is reached in cumulative metaanalysis. J Clin Epidemiol. 2008;61:64–75.CrossRefPubMed Wetterslev J, Thorlund K, Brok J, Gluud C. Trial sequential analysis may establish when firm evidence is reached in cumulative metaanalysis. J Clin Epidemiol. 2008;61:64–75.CrossRefPubMed
79.
go back to reference Savovic J, Jones H, Altman D, Harris R, Jűni P, Pildal J, et al. Influence of reported study design characteristics on intervention effect estimates from randomised controlled trials: combined analysis of meta-epidemiological studies. Health Technol Assess. 2012;16:1–82. doi:10.3310/hta16350.CrossRefPubMed Savovic J, Jones H, Altman D, Harris R, Jűni P, Pildal J, et al. Influence of reported study design characteristics on intervention effect estimates from randomised controlled trials: combined analysis of meta-epidemiological studies. Health Technol Assess. 2012;16:1–82. doi:10.​3310/​hta16350.CrossRefPubMed
83.
go back to reference Dalsgaard S, Nielsen HS, Simonsen M. Five-fold increase in national prevalence rates of attention-deficit/hyperactivity disorder medications for children and adolescents with autism spectrum disorder, attention-deficit/hyperactivity disorder, and other psychiatric disorders: a Danish register-based study. J Child Adolesc Psychopharmacol. 2013;23:432–9. doi:10.1089/cap.2012.0111.PubMedCentralCrossRefPubMed Dalsgaard S, Nielsen HS, Simonsen M. Five-fold increase in national prevalence rates of attention-deficit/hyperactivity disorder medications for children and adolescents with autism spectrum disorder, attention-deficit/hyperactivity disorder, and other psychiatric disorders: a Danish register-based study. J Child Adolesc Psychopharmacol. 2013;23:432–9. doi:10.​1089/​cap.​2012.​0111.PubMedCentralCrossRefPubMed
Metadata
Title
Cognitive computer training in children with attention deficit hyperactivity disorder (ADHD) versus no intervention: study protocol for a randomized controlled trial
Authors
Aida Bikic
James F. Leckman
Jane Lindschou
Torben Ø. Christensen
Søren Dalsgaard
Publication date
01-12-2015
Publisher
BioMed Central
Published in
Trials / Issue 1/2015
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-015-0975-8

Other articles of this Issue 1/2015

Trials 1/2015 Go to the issue