ERPs correlates of EEG relative beta training in ADHD children.
Eighty-six children (ages 9-14) with attention deficit hyperactivity disorder (ADHD) participated in this study. Event-related potentials (ERPs) were recorded in auditory GO/NOGO task before and after 15-22 sessions of EEG biofeedback. Each session consisted of 20 min of enhancing the ratio of the EEG power in 15-18 Hz band to the EEG power in the rest of spectrum, and 7-10 min of enhancing of the ratio of the EEG power in 12-15 Hz to the EEG power in the rest of spectrum with C3-Fz electrodes' placements for the first protocol and C4-Pz for the second protocol. On the basis of quality of performance during training sessions, the patients were divided into two groups: good performers and bad performers. ERPs of good performers to GO and NOGO cues gained positive components evoked within 180-420 ms latency. At the same time, no statistically significant differences between pre- and post-training ERPs were observed for bad performers. The ERP differences between post- and pretreatment conditions for good performers were distributed over frontal-central areas and appear to reflect an activation of frontal cortical areas associated with beta training.
Kropotov
Jury D
JD
Laboratory for Neurobiology of Action Programming, Institute of the Human Brain of Russian Academy of Sciences, ul. Academica Pavlova 12a, 197376 St. Petersburg, Russia.
Grin-Yatsenko
Vera A
VA
Ponomarev
Valery A
VA
Chutko
Leonid S
LS
Yakovenko
Elena A
EA
Nikishena
Inna S
IS
D000161:Acoustic Stimulation / Q000379:methods; D000704:Analysis of Variance; D001289:Attention Deficit Disorder with Hyperactivity / Q000503:physiopathology*; D001303:Auditory Cortex / Q000503:physiopathology*; D001611:Beta Rhythm; D001931:Brain Mapping; D002648:Child; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology*; D030141:Feedback, Psychological / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011340:Problem Solving / Q000502:physiology; D011930:Reaction Time / Q000502:physiology