Electroencephalographic correlates of cognitive activity, accompanied by the voice noise
The main aim of the present study was to explore spectral characteristics of alpha activity and time parameters of intellectual activity. EEG was registered while right-handed healthy participants (n=43; males, 19-21 years old) passed through Gorbov-Shulte's computer-aided test in form of red-black tables accompanied by the voice noise. It was revealed that noiseproof subjects, who had better time parameters of activity during voice noise, were characterized by high spectral power of alpha rhythm in initial and current EEG and significantly higher coefficient of alpha reactivity on opening the eyes in occipital areas of cortex, compared to those who decreased time parameters of intellectual activity at the same condition. Basing on this date it is suggested that high representation of alpha-activity in initial EEG of subjects may be used as prognostic criteria of noise resistance of subject.