Adaptation to bizarre stimulation of the semicircular canals as indicated by the oculogyral illusion. (Sub. 1, No. 53).

Abstract
Four healthy male subjects nineteen to twenty-three years of age were exposed to tilt in a specially constructed chair mounted in a rotating room which is built around the center of a human centrifuge. Determinations of the course of their adaptation to the oculogyral illusion are reported. Also compared are the effects of their voluntary head movements. Information obtained appears to have application to anticipated problems in manned orbiting satelites and to any rotating installation where personnel will be exposed to angular velocities above 2.0 rpm.