Accession Number : AD0763129

Title :   Origin Significance and Amelioration of Coriolis Illusions from the Semicircular Canals: A Non-Mathematical Appraisal,

Corporate Author : MCGILL UNIV MONTREAL (QUEBEC) DRB AVIATION MEDICAL RESEARCH UNIT

Personal Author(s) : Jones,G. Melvill

Report Date : MAY 1970

Pagination or Media Count : 8

Abstract : The physical origin of so-called coriolis illusions deriving from semicircular canal stimulation is examined in the functional context of the aerospace environment. It is shown that in the whole-vestibulo-postural system it is not enough to calculate mechanical cross-coupling effects in the end-organ. Effects such as optokinetic fixation, the direction of prevailing gravitational field, vestibular adaptation and habituation may substantially modify reflex and perceptual responses to the sensory message received in the brain stem. Experimental evidence indicates that reflex vestibular stabilisation of the head probably acts to minimise cross-coupling effects in man's natural life, and this suggests ways of ameliorating these effects in flight. (Author)

Descriptors :   (*AEROSPACE MEDICINE, CORIOLIS EFFECT), (*SEMICIRCULAR CANALS, *CORIOLIS EFFECT), VESTIBULAR APPARATUS, AVIATION MEDICINE, ROTATION, REFLEXES, ADAPTATION(PHYSIOLOGY), END ORGANS, CANADA

Subject Categories : Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE