[Coherent-phase characteristics of the cortical potentials over a wide frequency range in dogs in a state of calm wakefulness].
The spectra of coherence (Coh) and phasic shifts (PhS) of cortical potentials were studied by correlation-spectral analysis in a wide frequency range (1--100 Hz) in dogs in a state of quiet wakefulness. Estimation was made by parameters: significant Coh (above 0.5), high Coh (above 0.75), considered PhS (not above +/- 30 degrees), small PhS (not above +/- 15 degrees C). The presence is shown of individual features in coherent-phasic characteristics of neocortex potentials. High values of cross-correlation coefficients (Cc) between cortical potentials correspond in Coh spectra to a great part (90--100% peaks) of significant Coh, in which the great part (90--70% peaks) belongs to the high Coh with small PhS (in most cases). A certain correspondence, though expressed weaker, persisted also for lower values of Cc, Coh, and considered PhS. Coherent-phasic relations between potentials of certain cortical areas are characterized by stability in each animal; a tendency to it is manifest in all animals, despite individual differences of the brain electrical activity.
Dumenklo
V N
VN
Kozlov
M K
MK
D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology*; D004285:Dogs; D004567:Electrodes, Implanted; D008564:Membrane Potentials; D014851:Wakefulness / Q000502:physiology*
Kogerentno-fazovye kharakteristiki korkovykh potentsialov v shirokom chastotnom diapazone u sobak v sostoianii spokoĭnogo bodstvovaniia.