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Reactions to hypoxia and hypoknesia were compared by measuring charges in the amount of ribonucleic acid (RNA) in the cytoplasm of neurons of the intumescentia cervicalis and lumbalis. Animals were subjected to hypoxia, hypokinesia and both combined and a control group to neither. A total of two groups of motoneurons were compared, one innervating the respiratory musculature, the other the musculature of the lower extremities, so that hypoxic hypoxia would probably affect the first group primarily and hypokinesia the second. Results indicate that neither affect the amount of RNA in the neurons of the first group but a significant increase is noted in neurons of the second group. Other significant results are reported.

Electroencephalogram classification of bioelectric activity in human brain

Effect of acclimatization to hypoxia on mice resistance to acute hypoxia and radial acceleration and on heart morphology

Diurnal periodic changes in human electroencephalogram

Human performance during prolonged stay in low pressure chamber

Human physiological reactions to radial acceleration

Diagnosis of changes in electroencephalogram to establish human resistance to acute hypoxia for long period of time

Respiration and gas exchange in acute hypoxic test

Bioelectric current potentials and oxygen pressure in brain tissues during hypoxia of space flight