[Evoked potentials of the human brain during prolonged fasting].
Dynamics of the visual evoked potentials of human brain during a long-term alimentary starvation is studied. During a 14-day fasting in healthy male volunteers abrupt changes are found in an amplitude and shape of the evoked potentials in the site of occipital leads: increase of time and maximum amplitude of the response; level of residual murmur; duration and square of slow negative wave; integrated spectral densities (ISDs), ranged 0.1-1; 1-4 and 4-8 Hz; decrease of ISDs ranged 8-13 Hz. On a 14th day of food consumption, the measurements of all the evoke potential parameters are somewhat declined but significantly exceed the baseline levels. Also, fasting results in changing a pattern of spatial sequence of the evoked potentials: an increase of the mean values of response time in all the lead sites; a rise of maximum amplitude of response in occipital lead sites, and a slight statistically insignificant trend to a diminished amplitude of response in temporal lead sites.
Gorozhanin
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D000328:Adult; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D004585:Electrooculography; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005215:Fasting / Q000502:physiology*; D006801:Humans; D008297:Male; D011930:Reaction Time / Q000502:physiology; D013997:Time Factors
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