地球上和失重状态下的眼球扭转。

Ocular torsion on earth and in weightlessness.

作者信息

Young L R, Lichtenberg B K, Arrott A P, Crites T A, Oman C M, Edelman E R

出版信息

Ann N Y Acad Sci. 1981;374:80-92. doi: 10.1111/j.1749-6632.1981.tb30862.x.

DOI:10.1111/j.1749-6632.1981.tb30862.x

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.

摘要

在实验室中，对人体受试者在雪橇上进行水平线性加速时以及在美国国家航空航天局（NASA）KC - 135飞机的抛物线飞行中从失重状态恢复时的眼扭转（OT）进行了测量。对地球上OT对正弦水平振荡的频率响应分析表明，结果与恒定倾斜率研究以及基于加速度感知的早期模型一致。将OT对横向加速度的阶跃响应与来自飞机测试的类似曲线进行比较，这些测试中内耳石不存在预先存在的重力惯性力。比较了地球和失重状态下OT对产生视动的旋转宽视野和触觉线索的敏感性。描述了一种使用软接触镜目标进行OT高带宽视频测量的新仪器。