title: ADHD and EEG-neurofeedback: a double-blind randomized placebo-controlled feasibility study Neurofeedback in ADHD: a single-blind randomized controlled trial EEG Neurofeedback for ADHD In-School Neurofeedback Training for ADHD: Sustained Improvements From a Randomized Control Trial A Proposed Multisite Double-Blind Randomized Clinical Trial of Neurofeedback for ADHD Neurofeedback and Cognitive Attention Training for Children with Attention-Deficit Hyperactivity Disorder in Schools What future research should bring to help resolving the debate about the efficacy of EEG-neurofeedback in children with ADHD Is neurofeedback an efficacious treatment for ADHD? A randomised controlled clinical trial. Neurofeedback for the treatment of children and adolescents with ADHD: a randomized and controlled clinical trial using parental reports Effects of neurofeedback versus stimulant medication in attention-deficit/hyperactivity disorder: a randomized pilot study. Low P-Values or Narrow Confidence Intervals: Which Are More Durable? A randomized placebo-controlled trial of electroencephalographic (EEG) neurofeedback in children with attention-deficit/hyperactivity disorder. Reprint of “Neurofeedback and standard pharmacological intervention in ADHD: A randomized controlled trial with six-month follow-up” A randomised controlled trial of combined EEG feedback and methylphenidate therapy for the treatment of ADHD. Neurocognitive effects of neurofeedback in adolescents with ADHD: a randomized controlled trial. Does EEG-neurofeedback improve neurocognitive functioning in children with attention-deficit/hyperactivity disorder? A systematic review and a double-blind placebo-controlled study. Distinct EEG effects related to neurofeedback training in children with ADHD: a randomized controlled trial. Computer-Based Attention Training in the Schools for Children With Attention Deficit/Hyperactivity Disorder: A Preliminary Trial EEG correlates of methylphenidate response among children with ADHD: a preliminary report
abstract: Electroencephalography (EEG)-neurofeedback has been shown to offer therapeutic benefits to patients with attention-deficit/hyperactivity disorder ( ADHD ) in several , mostly uncontrolled studies . This pilot study is design ed to test the feasibility and safety of using a double-blind placebo feedback-controlled design and to explore the initial efficacy of individualized EEG-neurofeedback training in children with ADHD . Fourteen children ( 8–15 years ) with ADHD defined according to the DSM-IV-TR criteria were r and omly allocated to 30 sessions of EEG-neurofeedback ( n = 8) or placebo feedback ( n = 6 ) . Safety measures ( adverse events and sleep problems ) , ADHD symptoms and global improvement were monitored . With respect to feasibility , all children completed the study and attended all study visits and training sessions . No significant adverse effects or sleep problems were reported . Regarding the expectancy , 75 % of children and their parent(s ) in the active neurofeedback group and 50 % of children and their parent(s ) in the placebo feedback group thought they received placebo feedback training . Analyses revealed significant improvements of ADHD symptoms over time , but changes were similar for both groups . This pilot study shows that it is feasible to conduct a rigorous placebo-controlled trial to investigate the efficacy of neurofeedback training  in children with ADHD . However , a double-blind design may not be feasible since using automatic adjusted reward thresholds may not work as effective as manually adjusted reward thresholds . Additionally , implementation of active learning strategies may be an important factor for the efficacy of EEG-neurofeedback training . Based on the results of this pilot study , changes are made in the design of the ongoing study Neurofeedback treatment has been demonstrated to reduce inattention , impulsivity and hyperactivity in children with attention deficit/hyperactivity disorder ( ADHD ) . However , previous studies did not adequately control confounding variables or did not employ a r and omized reinforcer-controlled design . This study addresses those method ological shortcomings by comparing the effects of the following two matched biofeedback training variants on the primary symptoms of ADHD : EEG neurofeedback ( NF ) aim ing at theta/beta ratio reduction and EMG biofeedback ( BF ) aim ing at forehead muscle relaxation . Thirty-five children with ADHD ( 26 boys , 9 girls ; 6–14 years old ) were r and omly assigned to either the therapy group ( NF ; n = 18 ) or the control group ( BF ; n = 17 ) . Treatment for both groups consisted of 30 sessions . Pre- and post-treatment assessment consisted of psychophysiological measures , behavioural rating scales completed by parents and teachers , as well as psychometric measures . Training effectively reduced theta/beta ratios and EMG levels in the NF and BF groups , respectively . Parents reported significant reductions in primary ADHD symptoms , and inattention improvements in the NF group were higher compared to the control intervention ( BF , dcorr = −.94 ) . NF training also improved attention and reaction times on the psychometric measures . The results indicate that NF effectively reduced inattention symptoms on parent rating scales and reaction time in neuropsychological tests . However , regarding hyperactivity and impulsivity symptoms , the results imply that non-specific factors , such as behavioural contingencies , self-efficacy , structured learning environment and feed-forward processes , may also contribute to the positive behavioural effects induced by neurofeedback training Objective : Preparing for a definitive r and omized clinical trial ( RCT ) of neurofeedback ( NF ) for ADHD , this pilot trial explored feasibility of a double-blind , sham-controlled design and adherence/palatability/relative effect of two versus three treatments/week . Method : Unmedicated 6- to 12-year-olds with Diagnostic and Statistical Manual of Mental Disorders ( 4th ed . ; DSM-IV ) ADHD were r and omized to active NF versus sham-NF and to 2X versus 3X/week treatment frequency . Frequency switch was allowed after Treatment 24 . Results : In two school years , 39 participants were recruited and 34 ( 87 % ) completed all 40 treatments . Child/parent guesses about assigned treatment were no better than chance . At Treatment 24 , 38 % chose 2X/week and 62 % chose 3X/week . Both active NF and sham yielded large pre – post improvement on parent ratings  but NF no more than sham . Conclusion : Blinding appears to work , and sham does not prevent recruitment/retention . Treatment frequency of 3X/week seems preferred over 2X/week and was as effective . A large double-blind RCT is feasible and necessary to test specific NF effectiveness OBJECTIVE : To evaluate sustained improvements 6 months after a 40-session , in-school computer attention training intervention using neurofeedback or cognitive training ( CT ) administered to 7- to 11-year-olds with attention-deficit/hyperactivity disorder ( ADHD ) . METHODS : One hundred four children were r and omly assigned to receive neurofeedback , CT , or a control condition and were evaluated 6 months postintervention . A 3-point growth model assessed change over time across the conditions on the Conners 3–Parent Assessment Report ( Conners 3-P ) , the Behavior Rating Inventory of Executive Function Parent Form ( BRIEF ) , and a systematic double-blinded classroom observation ( Behavioral Observation of Students in Schools ) . Analysis of variance assessed community-initiated changes in stimulant medication . RESULTS : Parent response rates were 90 % at the 6-month follow-up . Six months postintervention , neurofeedback participants maintained significant gains on Conners 3-P ( Inattention effect size [ ES ] = 0.34 , Executive Functioning ES = 0.25 , Hyperactivity/Impulsivity ES = 0.23 ) and BRIEF subscales including the Global Executive Composite ( ES = 0.31 ) , which remained significantly greater than gains found among children in CT and control conditions . Children in the CT condition showed delayed improvement over immediate postintervention ratings only on Conners 3-P Executive Functioning ( ES = 0.18 ) and 2 BRIEF subscales . At the 6-month follow-up , neurofeedback participants maintained the same stimulant medication dosage , whereas participants in both CT and control conditions showed statistically and clinical ly significant increases ( 9 mg [ P = .002 ] and 13 mg [ P < .001 ] , respectively ) . CONCLUSIONS : Neurofeedback participants made more prompt and greater improvements in ADHD symptoms , which were sustained at the 6-month follow-up , than did CT participants or those in the control group . This finding suggests that neurofeedback is a promising attention training treatment for children with ADHD Objective : Additional treatments with persisting benefit are needed for ADHD . Because ADHD often shows excessive theta electroencephalogram ( EEG ) power , low beta , and excessive theta-beta ratio ( TBR ) , a promising treatment is neurofeedback ( NF ) downtraining TBR . Although several nonblind r and omized clinical trials ( RCTs ) show a medium-large benefit for NF , a well-blinded , sham-controlled RCT is needed to differentiate specific from nonspecific effects . Method : Experts in NF , ADHD , clinical trials , and statistics collaborated to design a double-blind multisite RCT . Results / Conclusion : At four sites , 180 children aged 7 to 10 years with rigorously diagnosed ADHD and TBR ≥ 5 will be r and omized to active TBR-NF versus sham NF of equal duration , intensity , and appearance . Sham , utilizing prerecorded EEGs with participant artifacts superimposed , will keep participants and staff blind . Treatment fidelity will be trained/monitored by acknowledged NF leaders . Multidomain assessment s before , during , and after treatment ( follow-up to 2 years ) will also include tests of blinding and sham inertness Objective : To evaluate the efficacy of 2 computer attention training systems administered in school for children with attention-deficit hyperactivity disorder ( ADHD ) . Method : Children in second and fourth grade with a diagnosis of ADHD ( n = 104 ) were r and omly assigned to neurofeedback ( NF ) ( n = 34 ) , cognitive training ( CT ) ( n = 34 ) , or control ( n = 36 ) conditions . A 2-point growth model assessed change from pre-post intervention on parent reports ( Conners 3-Parent [ Conners 3-P ] ; Behavior Rating Inventory of Executive Function [ BRIEF ] rating scale ) , teacher reports ( Swanson , Kotkin , Agler , M-Flynn and Pelham scale [ SKAMP ] ; Conners 3-Teacher [ Conners 3-T ] ) , and systematic classroom observations ( Behavioral Observation of Students in Schools [ BOSS ] ) . Paired t tests and an analysis of covariance assessed change in medication . Results : Children who received NF showed significant improvement compared with those in the control condition on the Conners 3-P Attention , Executive Functioning and Global Index , on all BRIEF summary indices , and on BOSS motor/verbal off-task behavior . Children who received CT showed no improvement compared to the control condition . Children in the NF condition showed significant improvements compared to those in the CT condition on Conners 3-P Executive Functioning , all BRIEF summary indices , SKAMP Attention , and Conners 3-T Inattention subscales . Stimulant medication dosage in methylpheni date equivalencies significantly increased for children in the CT ( 8.54 mg ) and control ( 7.05 mg ) conditions but not for those in the NF condition ( 0.29 mg ) . Conclusion : Neurofeedback made greater improvements in ADHD symptoms compared to both the control and CT conditions . Thus , NF is a promising attention training treatment intervention for children with ADHD In recent years a rising amount of r and omized controlled trials , review s , and meta-analyses relating to the efficacy of electroencephalographic-neurofeedback ( EEG-NF ) in children with attention-deficit/hyperactivity disorder ( ADHD ) have been published . Although clinical reports and open treatment studies suggest EEG-NF to be effective , double blind placebo-controlled studies as well as a rigorous meta- analysis failed to find support for the efficacy of EEG-NF . Since absence of evidence does not equate with evidence of absence , we will outline how future research might overcome the present method ological limitations . To provide conclusive evidence for the presence or absence of the efficacy of EEG-NF  in the treatment of ADHD , there is a need to set up a well- design ed study that ensures optimal implementation and embedding of the training , and possibly incorporates different forms of neurofeedback BACKGROUND For children with attention deficit/hyperactivity disorder ( ADHD ) , a reduction of inattention , impulsivity and hyperactivity by neurofeedback ( NF ) has been reported in several studies . But so far , unspecific training effects have not been adequately controlled for and /or studies do not provide sufficient statistical power . To overcome these method ological shortcomings we evaluated the clinical efficacy of neurofeedback in children with ADHD in a multisite r and omised controlled study using a computerised attention skills training as a control condition . METHODS 102 children with ADHD , aged 8 to 12 years , participated in the study . Children performed either 36 sessions of NF training or a computerised attention skills training within two blocks of about four weeks each ( r and omised group assignment ) . The combined NF treatment consisted of one block of theta/beta training and one block of slow cortical potential ( SCP ) training . Pre-training , intermediate and post-training assessment encompassed several behaviour rating scales ( e.g. , the German ADHD rating scale , FBB-HKS ) completed by parents and teachers . Evaluation ( ' placebo ' ) scales were applied to control for parental expectations and satisfaction with the treatment . RESULTS For parent and teacher ratings , improvements in the NF group were superior to those of the control group . For the parent-rated FBB-HKS total score ( primary outcome measure ) , the effect size was .60 . Comparable effects were obtained for the two NF protocol s ( theta/beta training , SCP training ) . Parental attitude towards the treatment did not differ between NF and control group . CONCLUSIONS Superiority of the combined NF training indicates clinical efficacy of NF in children with ADHD . Future studies should further address the specificity of effects and how to optimise the benefit of NF as treatment module for ADHD Background A r and omized and controlled clinical study was performed to evaluate the use of neurofeedback ( NF ) to treat  attention-deficit/hyperactivity disorder ( ADHD ) in children and adolescents . Methods The ADHD population was selected from an outpatient clinic for Child and Adolescent Mental Health in Norway . Ninety-one of the 275 children and adolescents ranging in age from 6 to 18 years ( 10.5 years ) participated in 30 sessions of an intensive NF program . The reinforcement contingency was based on the subjects ’ production of cortical beta1 activity ( 15–18 Hz ) . The ADHD participants were r and omized into three groups , with 30 in the NF group , 31 controls in a group that was given methylpheni date , and 30 in a group that received NF and methylpheni date .  ADHD core symptoms were reported by parents using the parent form of the Clinician ’s Manual for Assessment by Russell A. Barkley . Results Ninety-one children and adolescents were effectively r and omized by age , sex , intelligence and distribution of ADHD core symptoms . The parents reported significant effects of the treatments , but no significant differences between the treatment groups were observed . Conclusions NF was as effective as methylpheni date at treating the attentional and hyperactivity symptoms of ADHD , based on parental reports . Trial registration Current Controlled Trials OBJECTIVE The purpose of this pilot study was to compare the effects of 30 sessions of neurofeedback ( NF ) with stimulant medication on attention-deficit/hyperactivity disorder ( ADHD ) patients . METHODS Thirty-two medication-naïve ADHD patients , ages 7 - 16 , from a neuropsychiatric clinic , were r and omized to NF ( n=16 ) or drug treatment ( n=16 ) . Other actions , such as parent management training , information , or support in school were given as needed , with no differences between the groups . All participants were assessed before treatment on two rating scales , each with parent and teacher forms . In addition , quantitative electroencephalogram ( QEEG ) and event-related potentials ( ERPs ) , which included behavioral data from a go/no go test were administered . NF training took place in the clinic over a period of 7 - 11 months , and was followed by a repeat of the same assessment tools . The mean time interval between pre- and postassesment was not significantly different in the two groups . The 18 symptoms of ADHD ( American Psychiatric Association , Diagnostic and Statistical Manual of Mental Disorders , 4th ed . ( DSM-IV ) ) were used as the primary outcome measure . RESULTS Analysis of covariance revealed a significant difference between the groups at evaluation in favor of medication , with a large effect size . This picture was confirmed by other outcome measures . The QEEG spectral power in the theta and beta b and s did not change in either group . In ERP , the P3 no go component increased significantly in 8 of 12 patients who had a clinical ly relevant medication effect , but did not increase in the medication nonresponders or the NF group . CONCLUSIONS Our study supports effects for stimulants , but not for NF . Effects of NF may require thorough patient selection , frequent training sessions , a system for excluding nonresponders , and active transfer training . The P3 no go ERP component may be a marker for treatment response What should be the role of P-values and confidence intervals in the interpretation of scientific results ? This question is not new 1 and our field of epidemiology is far from alone in struggling with it . 2,3 I have four suggestions for authors and readers . The first is quite broad , so I offer that one before describing current practice s. I then turn to the other three . My remarks are confined to setting s in which P-values and confidence intervals accompany estimates of effect measures , such as the relative risk . Briefly , here are my suggestions . One , we should work harder than ever to avoid strict or exact interpretations of P-values and confidence intervals in observational research , where these statistics lack a theoretical basis . Two , we should stop interpreting  P-values and confidence intervals as though they measure the probability of hypotheses . Three , when we want to know the probability of hypotheses , we should use Bayesian methods , which are design ed expressly for that purpose . Four , we should get serious about precision and look for narrow confidence intervals instead of low P-values to identify results that are least influenced by r and om error OBJECTIVE A double-blind , r and omized , placebo-controlled study was design ed to assess the efficacy and safety of electroencephalographic ( EEG ) neurofeedback in children with attention-deficit/hyperactivity disorder ( ADHD ) . The study started in August 2008 and ended in July 2012 and was conducted at Karakter Child and Adolescent Psychiatry University Centre in Nijmegen , The Netherl and s. METHOD Forty-one children ( aged 8 - 15 years ) with a DSM-IV-TR diagnosis of ADHD were r and omly assigned to treatment with either EEG neurofeedback ( n = 22 ) or placebo neurofeedback ( n = 19 ) for 30 sessions , given as 2 sessions per week . The children were stratified by age , electrophysiologic state of arousal , and medication use . Everyone involved in the study , except the neurofeedback therapist and the principal investigator , was blinded to treatment assignment . The primary outcome was severity of ADHD symptoms on the ADHD Rating Scale IV , scored at baseline , during treatment , and at study end . Clinical improvement as measured by the Clinical Global Impressions-Improvement scale ( CGI-I ) was a secondary outcome . RESULTS While total ADHD symptoms improved over time in both groups ( F1,39 = 26.56 , P < .001 ) , there was no significant treatment effect , ie , group × time interaction ( F1,39 = 0.36 , P = .554 ) ; the same was true for clinical improvement as measured by the CGI-I ( P = .092 ) . No clinical ly relevant side effects were observed . Among the children and their parents , guessing treatment assignment was not better than chance level ( P = .224 for children , P = .643 for parents ) . CONCLUSION EEG neurofeedback was not superior to placebo neurofeedback in improving ADHD symptoms in children with ADHD . TRIAL REGISTRATION Clinical Trials.gov identifier : NCT00723684 The present study is a r and omized controlled trial that aims to evaluate the efficacy of Neurofeedback compared to st and ard pharmacological intervention in the treatment of attention deficit/hyperactivity disorder ( ADHD ) . The final sample consisted of 23 children with ADHD ( 11 boys and 12 girls , 7 - 14 years old ) . Participants carried out 40 theta/beta training sessions or received methylpheni date .  Behavioral rating scales were completed by fathers , mothers , and teachers at pre- , post-treatment , two- , and six-month naturalistic follow-up . In both groups , similar significant reductions were reported in ADHD functional impairment by parents ; and in primary ADHD symptoms by parents and teachers . However , significant academic performance improvements were only detected in the Neurofeedback group . Our findings provide new evidence for the efficacy of Neurofeedback , and contribute to enlarge the range of non-pharmacological ADHD intervention choices . To our knowledge , this is the first r and omized controlled trial with a six-month follow-up that compares Neurofeedback and stimulant medication in ADHD PURPOSE To evaluate the efficacy of combined methylpheni date and EEG feedback treatment for children with ADHD . METHODS Forty patients with ADHD were r and omly assigned to the combination group ( methylpheni date therapy and EEG feedback training ) or control group ( methylpheni date therapy and non-feedback attention training ) in a 1:1 ratio using the double-blind method . These patients , who met the DSM-IV diagnostic criteria and were aged between 7 and 16 years , had obtained optimal therapeutic effects by titrating the methylpheni date dose prior to the trial . The patients were assessed using multiple parameters at baseline , after 20 treatment sessions , after 40 treatment sessions , and in 6-month follow-up studies . RESULTS Compared to the control group , patients in the combination group had reduced ADHD symptoms and improved in related behavioural and brain functions . CONCLUSION The combination of EEG feedback and methylpheni date treatment is more effective than methylpheni date alone . The combined therapy is especially suitable for children and adolescents with ADHD who insufficiently respond to single drug treatment or experience drug side effects OBJECTIVE Neurofeedback aims to reduce symptoms of attention-deficit/hyperactivity disorder ( ADHD ) , mainly attention problems . However , the additional influence of neurofeedback over treatment as usual ( TAU ) on neurocognitive functioning for adolescents with ADHD remains unclear . METHOD By using a multicenter parallel r and omized controlled trial ( RCT ) design , male adolescents with a DSM-IV-TR diagnosis of ADHD ( mean age = 16.1 years ; range , 12 - 24 ) were r and omized to receive either a combination of TAU and neurofeedback ( n = 45 ) or TAU ( n = 26 ) . R and omization was computer generated and stratified by age group ( ages 12 through 15 , 16 through 20 , and 21 through 24 years ) . The neurofeedback intervention consisted of approximately 37 sessions over a period of 25 weeks of theta/sensorimotor rhythm training on the vertex ( Cz ) . Primary neurocognitive outcomes included performance parameters derived from the D2 Test of Attention , the Digit Span backward , the Stroop Color-Word Test and the Tower of London , all assessed preintervention and postintervention . Data were collected between December 2009 and July 2012 . RESULTS At postintervention , outcomes of attention and /or motor speed were improved , with faster processing times for both intervention conditions and with medium to large effect sizes ( range , ηp2 = .08-.54 ; P values < .023 ) . In both groups , no improvements for higher executive functions were observed . Results might partly resemble practice effects . CONCLUSIONS Although neurocognitive outcomes improved in all adolescents receiving treatment for ADHD , no additional value for neurofeedback over TAU was observed . Hence , this study does not provide evidence for using theta/sensorimotor rhythm neurofeedback to enhance neurocognitive performance as additional intervention to TAU for adolescents with ADHD symptoms . TRIAL REGISTRATION Trialregister.nl identifier : 1759 BACKGROUND The number of placebo-controlled r and omized studies relating to EEG-neurofeedback and its effect on neurocognition in attention-deficient/hyperactivity disorder ( ADHD ) is limited . For this reason , a double blind , r and omized , placebo-controlled study was design ed to assess the effects of  EEG-neurofeedback  on neurocognitive functioning in children with ADHD , and a systematic review on this topic was performed . METHODS Forty-one children ( 8 - 15 years ) with a DSM-IV-TR diagnosis of ADHD were r and omly allocated to EEG-neurofeedback or placebo-neurofeedback treatment for 30 sessions , twice a week . Children were stratified by age , electrophysiological state of arousal , and medication use . Neurocognitive tests of attention , executive functioning , working memory , and time processing were administered before and after treatment . Research ers , teachers , children and their parents , with the exception of the neurofeedback-therapist , were all blind to treatment assignment . Outcome measures were the changes in neurocognitive performance before and after treatment . CLINICAL TRIAL REGISTRATION www . clinical trials.gov : NCT00723684 . RESULTS No significant treatment effect on any of the neurocognitive variables was found . A systematic review of the current literature also did not find any systematic beneficial effect of EEG-neurofeedback on neurocognitive functioning . CONCLUSION Overall , the existing literature and this study fail to support any benefit of neurofeedback on neurocognitive functioning in ADHD , possibly due to small sample sizes and other study limitations In a r and omized controlled trial , neurofeedback ( NF ) training was found to be superior to a computerised attention skills training concerning the reduction of ADHD symptomatology ( Gevensleben et al. , 2009 ) . The aims of this investigation were to assess the impact of different NF protocol s ( theta/beta training and training of slow cortical potentials , SCPs ) on the resting EEG and the association between distinct EEG measures and behavioral improvements . In 72 ( of initially 102 ) children with ADHD , aged 8 - 12 , EEG changes after either a NF training ( n=46 ) or the control training ( n=26 ) could be studied . The combined NF training consisted of one block of theta/beta training and one block of SCP training , each block comprising 18 units of 50 minutes ( balanced order ) .  Spontaneous EEG  was recorded in a two-minute resting condition before the start of the training , between the two training blocks and after the end of the training . Activity in the different EEG frequency b and s was analyzed . In contrast to the control condition , the combined NF training was accompanied by a reduction of theta activity . Protocol -specific EEG changes ( theta/beta training : decrease of posterior-midline theta activity ; SCP training : increase of central -midline alpha activity ) were associated with improvements in the German ADHD rating scale . Related EEG-based predictors were obtained . Thus , differential EEG patterns for theta/beta and SCP training provide further evidence that distinct neuronal mechanisms may contribute to similar behavioral improvements in children with ADHD Objective . This study examined the efficacy of 2 computer-based training systems to teach children with attention deficit/hyperactivity disorder ( ADHD ) to attend more effectively . Design / methods . A total of 41 children with ADHD from 2 middle schools were r and omly assigned to receive 2 sessions a week at school of either neurofeedback ( NF ) or attention training through a st and ard computer format ( SCF ) , either immediately or after a 6-month wait ( waitlist control group ) . Parents , children , and teachers completed question naires pre- and postintervention . Results . Primary parents in the NF condition reported significant ( P < .05 ) change on Conners ’s Rating Scales — Revised ( CRS-R ) and Behavior Assessment Scales for Children ( BASC ) subscales ; and in the SCF condition , they reported significant ( P < .05 ) change on the CRS-R Inattention scale and ADHD index , the BASC Attention Problems Scale , and on the Behavioral Rating Inventory of Executive Functioning ( BRIEF ) . Conclusion . This r and omized control trial provides preliminary evidence of the effectiveness of computer-based interventions for ADHD and supports the feasibility of offering them in a school setting BACKGROUND Recent electrophysiologic studies have found fairly consistent differences between children with attention-deficit/hyperactivity disorder ( ADHD ) and age-matched control subjects . The present study examined electroencephalogram ( EEG ) changes associated with a double blind , placebo-controlled administration of methylpheni date among children with ADHD . METHODS Subjects were 10 children , ages 8 to 13 , with a primary diagnosis of ADHD .  Brain electrical activity was recorded with 7 electrodes in the frontal , central , and midline areas during baseline and cognitive activation conditions . RESULTS Repeated- measures ANOVAs indicate that children exhibiting a positive medication response had reductions of theta and alpha as well as increased beta in the frontal regions , while nonresponders showed the opposite pattern ( p < .05 ) . Significant correlations between improvement on a vigilance task and changes in beta activity in the frontal electrodes emerged as well . CONCLUSIONS These preliminary findings indicate that there are different electrophysiologic correlates to methylpheni date among ADHD children who are medication responders and nonresponders
target: Conclusions : This meta- analysis of EEG-NF in children with ADHD highlights improvement in the inattention dimension of ADHD symptoms .
background: Objective : We undertook a meta- analysis of published R and omized Controlled Trials ( RCT ) with semi-active control and sham-NF groups to determine whether Electroencephalogram-neurofeedback ( EEG-NF ) significantly improves the overall symptoms , inattention and hyperactivity/impulsivity dimensions for probably unblinded assessment ( parent assessment ) and probably blinded assessment ( teacher assessment ) in children with Attention Deficit Hyperactivity Disorder ( ADHD ) .