PMID: 6978659Jan 1, 1981Paper

Ocular torsion on earth and in weightlessness

Annals of the New York Academy of Sciences
L R YoungE R Edelman

Abstract

Ocular torsion (OT) was measured in human subjects during horizontal linear acceleration on a sled in the laboratory and when emerging from weightlessness during parabolic flights in NASA's KC-135 aircraft. Analysis of the frequency response of OT to sinusoidal horizontal oscillation on earth shows results consistent with constant tilt rate studies and with earlier models based on perception of acceleration. Step responses of OT to lateral acceleration are compared to similar profiles from aircraft tests with no preexisting gravitoinertial force on the otoliths. The sensitivity of OT to rotating wide fields producing vection and to tactile cues is compared for earth and weightlessness. A new instrument for high bandwidth video measurement of OT using a soft-contact-lens target is described.

References

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Citations

Jan 1, 1986·Annals of Biomedical Engineering·J W Grant, W A Best
Jul 1, 1995·Annals of Biomedical Engineering·L R Young
Jan 1, 1991·Vision Research·B S Cheung, I P Howard
Oct 31, 1998·Brain Research. Brain Research Reviews·A H Clarke
Feb 5, 2003·Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc·A H ClarkeC Steineke
Jan 1, 1985·IEEE Transactions on Bio-medical Engineering·J A ParkerL R Young
Apr 1, 1994·IEEE Transactions on Bio-medical Engineering·J E Bos, B de Graaf
Mar 1, 1987·Acta Oto-laryngologica·T Viéville, D Masse
Apr 19, 2002·Annals of the New York Academy of Sciences·Robert S Jampel
May 27, 2005·Brain : a Journal of Neurology·Christophe LopezMichel Lacour
Jan 1, 1981·Annals of the New York Academy of Sciences·L DeeckeD Plester
Jan 1, 1991·Acta Oto-laryngologica. Supplementum·T SeoT Matsunaga
Apr 4, 2002·Journal of Neurophysiology·Erich SchneiderMarianne Dieterich
Jan 1, 1986·Acta Oto-laryngologica·P L HuygenW Kuijpers

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