[The dynamic shifts in the parameters of the traditional frequency-range of the EEG during learning in dogs].
Parameters of EEG recorded from some areas of the cortex and olfactory bulbs were studied during lever-pressing alimentary conditioning in dogs and analysed using FFT in a wide frequency range (1-100 Hz). Parameters of electrical activity in the cortex ans olfactory bulbs were shown to have different dynamics. Power level of cortical potentials increased in the high frequency band (40 Hz and upwards) and that of the olfactory bulbs increased in both high frequency and alpha bands. Coherent-phase characteristics of the cortical potentials give evidence that in the process of conditioning more stable relations establish between activities of different cortical areas in both high frequency and alpha bands than in the state of quiet wakefulness. At the same time relations between potentials in the cortex and in the bulbs were characterized by the larger phase shifts, increase of coherence attributed only to the high frequency but not traditional bands. Possible role of the alpha frequencies along with the high frequency band in the process of information processing is discussed.
Dumenko
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D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology; D016009:Chi-Square Distribution; D003214:Conditioning, Classical / Q000502:physiology; D004285:Dogs; D004567:Electrodes, Implanted; D004569:Electroencephalography / Q000706:statistics & numerical data; D005071:Evoked Potentials / Q000502:physiology; D007858:Learning / Q000502:physiology*; D009830:Olfactory Bulb / Q000502:physiology; D014851:Wakefulness / Q000502:physiology
Dinamicheskie sdvigi parametrov traditsionnogo chastotnogo diapazona EEG v protsesse obucheniia u sobak.