Originally Posted by
377 Pete
Somatogravic and Somatogyral Illusions
I have experienced this while driving at night through light to moderate snowfall. Any visual reference to a fixed point is masked by weather, your brain tells you that YOU are the fixed point which creates the odd, unnerving sensation that you are standing still. You look at your tach and speedo, all is normal. I would imagine that as a pilot, with a third axis to deal with, the sensation is several times worse...
i do not think that is a vestibular (inner ear) illusion, but a visual illusion called 'vection'. It is nevertheless unnnerving.