[The differential-diagnostic role of low-frequency spectral characteristics of the bioelectric activity of the brain in epilepsy].
As many as 110 patients with primary-generalized (PG) and secondary-generalized (SG) attacks were examined by means of computer mapping of spectral power of cortical biopotentials within a range of 0.5-30 Hz divided by 22 frequency bands. As shown by differential diagnosis, the PG forms of epilepsy and SG epilepsy with focus localization in different hemispheres turned out dissimilar. The difference lay in cortical topography of an increase of spectral power in certain bands of the low-frequency range 0.5-7.25 Hz. The left hemisphere was noted to play the key role (in the right-handed) in the "trigger" of the processes of epileptic activity generalization.
Selitskiĭ
G V
GV
Sviderskaia
N E
NE
Karlov
V A
VA
D000200:Action Potentials / Q000502:physiology; D001931:Brain Mapping / Q000379:methods; D002540:Cerebral Cortex / Q000503:physiopathology*; D003937:Diagnosis, Differential; D004569:Electroencephalography; D004827:Epilepsy / Q000175:diagnosis* / Q000503:physiopathology; D007839:Functional Laterality / Q000502:physiology; D006801:Humans
Differentsial'no-diagnosticheskaia rol' nizkochastotnykh spektral'nykh kharakteristik bioélektricheskoĭ aktivnosti mozga pri épilepsii.