[Dynamics of spectral characteristics of theta- and alpha-range EEG during negative emotional reactions].
Power characteristics of the EEG theta and alpha rhythms were studied in a human in neutral state and during a conditioned negative emotional reaction (Fp1, Fp2, F3, F4, C3, C4, P3, P4, O1, O2, F7, F8, T3, T4, T5, and T6 derivations). A significant increase in the relative spectral power in the narrow theta band of 7.4-8.1 Hz in the frontocentral and temporal brain regions was observed during the development of the negative emotional reaction. The alpha-rhythm dynamics during the negative reaction was substantially individual and could be expressed in either an increase, or decrease in relative spectral power of different alpha-frequencies. No pronounced changes in their dynamics could also be observed. In some subjects the spectral power of the medium-frequency alpha-rhythm significantly decreased, that of the high-frequency rhythm increased, and changes in the spectral power of the low-frequency alpha range varied.
Il'iuchenok
I R
IR
Institute of Higher Nerous Activity and Neurophysiology, Russian Academy of Sciences, Moscow.
Savost'ianov
A N
AN
Valeev
R G
RG
D000293:Adolescent; D000328:Adult; D000513:Alpha Rhythm; D004644:Emotions / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D013826:Theta Rhythm
Dinamika spektral'nykh kharakteristik teta- i al'fa-diapazonov EEG pri negativnoĭ émotsional'noĭ reaktsii.