Accession Number : AD0617752

Title :   CHANGES IN SPONTANEOUS ACTIVITY AS A MEASURE OF SENSITIVITY TO ROTATION IN THE WHITE RAT,

Corporate Author : NAVAL SCHOOL OF AVIATION MEDICINE PENSACOLA FLA

Personal Author(s) : Eskin,Arnold ; Riccio,David C.

Report Date : 11 JAN 1965

Pagination or Media Count : 13

Abstract : 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. Postrotation activity was suppressed up to five minutes. The rats showed considerable sensitivity to Coriolis stimuli generated during constant speed of rotation. A relationship was found between duration and magnitude of stimulation. These findings are encouraging for the use of behavioral methods in studying sensitivity to motion. (Author)

Descriptors :   (*ROTATION, SENSITIVITY), (*ACCELERATION TOLERANCE, RATS), BEHAVIOR, MOTION, VESTIBULAR APPARATUS, STIMULATION(PHYSIOLOGY), PSYCHOPHYSIOLOGY, AVIATION MEDICINE, STRESS(PHYSIOLOGY)

Distribution Statement : APPROVED FOR PUBLIC RELEASE