3 rats given avoidance training and then exposed to 7, 13, and 19 ATA breathing nitrogen, then to 25, 31, and 37 ATA breathing helium, showed increased avoidance response rates above established baselines to 19 ATA followed by a decline. Narcotic effects of nitrogen were not reduced differentially by addition of helium.
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References
1.
BrauerR. W.WayO. W.Relative narcotic potencies of hydrogen, helium, nitrogen, and their mixtures. Journal of Applied Physiology, 1970, 29, 23–31.
2.
MillerK. W.Inert gas narcosis, the high pressure neurological syndrome, and the critical volume hypothesis. Science, 1974, 185, 867–869.
3.
ProctorL. D.CareyC. R.LeeR. M.SchaeferK. E.Van Den EndeH.Electroencephalographic changes during saturation excursion dives to a simulated sea water depth of 1000 feet. Aerospace Medicine, 1972, 43, 867–877.
4.
ThomasJ. R.BurghL. S.Inert gas narcosis: Avoidance behavior in rats breathing elevated pressures of nitrogen and helium. Physiological Psychology, 1975, in press.
