[The self-stimulation reaction of rabbits in a helium-oxygen environment under increased pressure]

Change of intensity of hypothalamic self-stimulation was determined in rabbits during their stay in normoxic helium-oxygen medium under the pressures of 10, 15 and 40 kgf/cm2 at various speeds of compression. The experiments conducted testify to depressive influence on the hypothalamus self-stimulation of helium-oxygen medium under increased pressure; the influence was more expressed at higher pressures and great speed of compression. It is supposed that the decrease in frequency of pedal pressures was connected with the appearance of nervous syndrome of high pressures.