title: Epileptiform abnormalities and quantitative EEG in children with attention-deficit/hyperactivity disorder.
abstract: There is much controversy about the importance of the electroencephalogram (EEG) in assessing the attention-deficit/hyperactivity disorder (ADHD). The objective of this study was to assess the use of EEG and quantitative EEG (qEEG) in ADHD children. Thirty ADHD children and 30 sex- and age-matched controls with no neurological or psychiatric problems were studied. The EEG was recorded from 15 electrode sites during an eyes-closed resting condition. Epileptiform activity was assessed, as were the absolute and relative powers in the classical bands after application of the Fast Fourier transform. Epileptiform activity was found in 3 (10%) ADHD children. As compared to the controls, the ADHD group showed significantly greater absolute delta and theta powers in a diffuse way, and also greater absolute beta power and smaller relative alpha 1 and beta powers at some electrodes. A logistic multiple regression model, allowed for 83.3% sensibility and specificity in diagnosing ADHD.
authors.affiliation: Pontifícia Universidade Católica de Campinas, Campinas, SP, Brazil.
authors.forename: Lineu Corrêa
authors.initials: LC
authors.lastname: Fonseca
authors.forename: Glória Maria A S
authors.initials: GM
authors.lastname: Tedrus
authors.forename: César de
authors.initials: Cd
authors.lastname: Moraes
authors.forename: Amanda de
authors.initials: Ad
authors.lastname: Vicente Machado
authors.forename: Marcela Pupin de
authors.initials: MP
authors.lastname: Almeida
authors.forename: Débora Ortolan Fernandes de
authors.initials: DO
authors.lastname: Oliveira
mesh_terms: D017677:Age Distribution; D001289:Attention Deficit Disorder with Hyperactivity / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology; D016022:Case-Control Studies; D002648:Child; D004566:Electrodes; D004569:Electroencephalography; D004827:Epilepsy / Q000175:diagnosis*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D017678:Sex Distribution