Changes in EEG Spectrograms, Event-Related Potentials and Event-Related Desynchronization Induced by Relative Beta Training in ADHD Children

Autor: E. A. Yakovenko, Valery A. Ponomarev, Vera A. Grin-Yatsenko, Chutko Ls, Nikishena Is, Jury D. Kropotov
Rok vydání: 2007
Předmět:
Zdroj: Journal of Neurotherapy. 11:3-11
ISSN: 1530-017X
1087-4208
DOI: 10.1300/j184v11n02_02
Popis: Background. During the last three decades EEG-based biofeedback (neurofeed-back) was used as an alternative treatment for reducing symptoms of ADHD. The goal of this study was to objectively assess the efficacy of biofeedback training by comparing spectrograms, ERPs and ERDs, measured before and after 20 sessions of neurotherapy in a group of ADHD children. Method. Electroencephalogram (EEG), Event related potentials (ERPs) and event related synchronisation/desynchronisation (ERD/ERS) were recorded and computed in auditory GO/ NOGO task before and after 15–22 sessions of EEG biofeedback. Eighty-six ADHD children participated in the study. Each session consisted of 30 min of relative beta training. The patients were divided into two groups (good performers and poor performers) depending on their ability to elevate beta activity during sessions. Results. Amplitude of late positive components of evoked potentials in response to NOGO stimuli increased, and event-related synchronisation in alpha frequ...
Databáze: OpenAIRE