[Effect of acute hypoxia on the EEG and neuronal pulse activity of various brain structures in rats].
The initial phase of hypoxia effect involves activation of the EEG (2000---6000 m) and unit impulse activity (7500--10 000 m). The 7500--10 000 m induced a change towards a predominant slow rhythm of the delta-type while the unit impulse activity gradually diminished, the cortical neurons displaying a higher hypoxia sensitivity and an earlier suppression than the cells of the hypothalamus and the medulla. In all phases of the hypoxia effect the EEG waves showed a greater sensitivity to the rapid peripheral signals than the unit impulse activity of the cortex and other brain structures.
D000208:Acute Disease; D000818:Animals; D002540:Cerebral Cortex / Q000503:physiopathology; D003700:Delta Rhythm; D004569:Electroencephalography; D007031:Hypothalamus / Q000503:physiopathology; D000860:Hypoxia / Q000503:physiopathology*; D008526:Medulla Oblongata / Q000503:physiopathology; D009474:Neurons / Q000502:physiology*; D051381:Rats
Vliianie ostroi gipoksii na EEG i impul'snuiu aktivnost' neironov razlichnykh struktur mozga u krys.