Abstract
In immobilized rabbits the fatal course asphyxiated by the cessation of artificial respiration was characterized by the sequence of events: disappearance of surface EEG, final bradycardia on ECG, disappearance of deep EEG (midbrain reticular formation) and final tachycardia. It was demonstrated that the stage of final tachycardia virtually might coincide with the stage of deprivation of brain stem function.