[Generators of the rhythmic alpha activity in the human EEG].
An attempt to localize brain mechanisms of the rhythmic activity in the alpha-rhythm range was made using the equivalent dipole model. It is known that light flickering stimuli with the frequency close to that of the individual alpha rhythm induce an increase in its spectral power ("photic-driving" phenomenon). It was shown that the activity of the neuronal structures generating the alpha rhythm can be identified by specific frequency of the light stimulation and localized by means of construction of dipole models. Two sources of the alpha rhythm in the narrow-frequency bands with the maximal resonance responses in the frequencies of 10.1 and 10.5 Hz were localized in the thalamic structures.
Isaĭchev
S A
SA
Lomonosov State University, Moscow.
Dereviankin
V T
VT
Koptelov
Iu M
IuM
Sokolov
E N
EN
D000513:Alpha Rhythm / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods; D006801:Humans; D008959:Models, Neurological; D009474:Neurons / Q000502:physiology; D010507:Periodicity; D010775:Photic Stimulation / Q000379:methods