title: EEG characteristics and visual cognitive function of children with attention deficit hyperactivity disorder (ADHD).
abstract: Using visual and auditory continuous performance tests (CPT) and EEG, cognitive function and EEG power were investigated in patients with attention deficit hyperactivity disorder (ADHD). CPT and EEG were conducted for 44 ADHD children and 44 healthy controls of comparable age and sex. The EEG power tests include relative power of theta, alpha, and beta, and theta/beta and theta/alpha ratios. ADHD patients showed significantly higher theta relative power, lower beta relative power, and higher theta/beta ratio (p<0.05). ADHD patients showed a significantly lower score of auditory CPT (p<0.05). The EEG power characteristics were correlated significantly with the visual attention function in ADHD children (p<0.01). Higher-order level cognitive dysfunction affects ADHD pathogenesis. Cortical hypoarousal effects on several mechanisms including the fronto-striatal circuitry may be implicated in the inhibition of prepotent and premature responses.
authors.affiliation: Department of Child and Adolescent Health, Public Health College, Harbin Medical University, Harbin, PR China.
authors.forename: Tongkun
authors.initials: T
authors.lastname: Shi
authors.forename: Xia
authors.initials: X
authors.lastname: Li
authors.forename: Jia
authors.initials: J
authors.lastname: Song
authors.forename: Na
authors.initials: N
authors.lastname: Zhao
authors.forename: Caihong
authors.initials: C
authors.lastname: Sun
authors.forename: Wei
authors.initials: W
authors.lastname: Xia
authors.forename: Lijie
authors.initials: L
authors.lastname: Wu
authors.forename: Akemi
authors.initials: A
authors.lastname: Tomoda
mesh_terms: D000293:Adolescent; D000513:Alpha Rhythm / Q000502:physiology; D001289:Attention Deficit Disorder with Hyperactivity / Q000503:physiopathology*; D001611:Beta Rhythm / Q000502:physiology; D002648:Child; D003071:Cognition / Q000502:physiology* / Q000528:radiation effects; D004569:Electroencephalography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D013647:Task Performance and Analysis; D013826:Theta Rhythm / Q000502:physiology; D014796:Visual Perception