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  • Title: [Effect of intermittent photostimulation of varying frequency on the formation of trace processes and spectral components in the human EEG].
    Author: Bondar' AT, Konovalov VF, Fedotchev AI.
    Journal: Fiziol Zh SSSR Im I M Sechenova; 1988 Apr; 74(4):466-77. PubMed ID: 3396711.
    Abstract:
    The EEG of occipital areas was recorded in adult healthy male subjects on presentation of haphazardly alternating intermittent light stimuli with frequencies varying from 15 to 5 Hz and from 15 to 25 Hz every 5 sec. Two groups were distinguished in respect to a greater or lesser domineering of the main frequency band of the range. Dynamic spectral analysis revealed obvious shifts of the EEG spectral composition in respect to the background under the effect of the stimulation, an enhancement of different bands of the range in light flickering, and the suppression of the EEG trace responses to the time in the EEG range coinciding in frequency with the frequency range of the photostimulation. The above changes were mainly characteristic of the 2nd group of subjects and mostly of the left hemisphere of the brain.
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