Graybiel A, Johnson W H, Money K E, Malcolm R E, Jennings G L
Aviat Space Environ Med. 1979 Apr;50(4):382-6.
Experimental subjects wore goggles that restricted monocular vision to a luminous line fixed relative to the head, and they were exposed on one occasion to a straight-ahead acceleration of an aircraft and on another occasion to a tilting chair. The magnitude of change of direction of the resultant accleration was the same on both occasions, but the perceived movement of the luminous line from the two stimuli was very different. In response to the aircraft stimulus, the oculogravic illusion was experienced and the luminous line was perceived as tilting relative to the subject, in response to the tilting chair stimulus, the line was perceived as remaining fixed relative to the subject. It was concluded that the oculogravic illusion, as experienced in the aircraft (and previously in centrifuges), is a true illusion and not merely a fact of physics.
实验对象佩戴了护目镜，这些护目镜将单眼视觉限制在相对于头部固定的一条发光线上，他们有一次经历了飞机的直线加速，另一次经历了倾斜椅实验。两次实验中合成加速度的方向变化幅度相同，但来自两种刺激的发光线的感知运动却非常不同。对于飞机刺激，实验对象体验到了眼重力错觉，发光线被感知为相对于实验对象倾斜；对于倾斜椅刺激，线被感知为相对于实验对象保持固定。得出的结论是，在飞机上（以及之前在离心机中）体验到的眼重力错觉是一种真正的错觉，而不仅仅是一个物理现象。
