de Jong H A, Oosterveld W J
University of Amsterdam, Academisch Medisch Centrum, The Netherlands.
Aviat Space Environ Med. 1987 Sep;58(9 Pt 2):A253-6.
Human test-persons and pigs were subjected to pendular swing movements during parabolic flight. The rotary-induced nystagmus frequency in pigs increased during a G-load of more than 1.5 G. In the trajectory from zero G to 1.5 G the nystagmus SPV in pigs increased. In human subjects weightlessness suppressed the rotary-induced nystagmus, and gravitational conditions over 2 G increased the nystagmus amplitude. Nystagmus responses in experienced test-persons proved to be independent of changes in G-load. The differences in the results in man and pig support the assumption that rotary-induced nystagmus is not solely a response of the cupulae and the otoliths, but is also affected by tactile and somatosensory stimulation.
人类受试者和猪在抛物线飞行过程中接受了摆动运动。猪在超过1.5G的重力负荷期间,旋转诱发的眼球震颤频率增加。在从零重力到1.5G的轨迹中,猪的眼球震颤慢相速度增加。在人类受试者中,失重抑制了旋转诱发的眼球震颤,超过2G的重力条件增加了眼球震颤的幅度。经验丰富的受试者的眼球震颤反应被证明与重力负荷的变化无关。人类和猪的结果差异支持了这样一种假设,即旋转诱发的眼球震颤不仅是壶腹嵴和耳石的反应,还受到触觉和体感刺激的影响。