| THE EFFECTS OF EXPOSURE TO A ROTATING ENVIRONMENT (10RPM) ON FOUR AVIATORS FOR A PERIOD OF TWELVE DAYS, |
30 MAR 1965 |
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| Authors:
A. Graybiel; R. S. Kennedy; E. C. Knoblock; F. E. Guedry Jr.; W. mertz; NAVAL SCHOOL OF AVIATION MEDICINE PENSACOLA FLA
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 | Four carefully selected military personnel undergoing flight training were exposed to constant rotation at a speed of 10 RPM for 12 days in the Pensacola Slow Rotation Room. Environmental and working conditions simulated in many respects those which might obtain in a rotating orbiting spacecraft. The findings are discussed under three headings: clinical symptoms, clinical laboratory findings, and psychophysiological performance. The experiment has demonstrated that countermeasured in addition to adaptation ... |
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| CHANGES IN SPONTANEOUS ACTIVITY AS A MEASURE OF SENSITIVITY TO ROTATION IN THE WHITE RAT, |
11 JAN 1965 |
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| Authors:
Arnold Eskin; David C. Riccio; NAVAL SCHOOL OF AVIATION MEDICINE PENSACOLA FLA
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| Fifty-six unrestrained rats were individually exposed to a rotation speed between 0-18 RPM. Their activity was measured using a fourpoint scale: (0) no activity, (1) grooming and sniffing, (2) moderate running, and (3) rapid running. Amount of activity decreased as a function of rotation speed from 6 to 14 RPM, where it reached a lower limit plateau. Rate of decline within this speed range was also directly related to velocity. ... |
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| ROTATIONS AND LORENTZ TRANSFORMATIONS, |
02 FEB 1964 |
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| Authors:
Peter Rastall; TEXAS UNIV AUSTIN DEPT OF MATHEMATICS
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| Any complex three-dimensional rotation is determined by a complex vector and by a complex angle of rotation. New, short proofs are given of the homomorphisms between the three-dimensional complex rotation group, the group of unimodular quaternions (or unimodular 2 X 2 matrices) and the restricted Lorentz group. A correspondence is established between certain complex three-dimensional rotation vectors and two-dimensional subspaces of Lorentz vectors. The twodimensional subspaces which are invariant under ... |
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| STUDIES ON HABITUATION OF VESTIBULAR REFLEXES. EFFECT OF CALORIC STIMULATION IN DECORTICATED CATS, |
SEP 1963 |
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| Authors:
C. Fernandez; R. S. Schmidt; CHICAGO UNIV ILL MEDICAL SCHOOL
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| Habituation of nystagmus elicited by repetitive caloric stimulation was studied in seven decorticated cats. The histopathologic studies revealed total ablation of neocortex, excepting small remnants in two cases, and extensive damage to basal ganglia and diencephalon. All animals exhibited response decline of nystagmus, demonstrating that neocortex and probably basal ganglia and diencephalon are not essential for inducing habituation. There was no conclusive data regarding transfer and long-lasting retention of the ... |
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