Visual spatial aftereffect from prolonged head-tilt.
Subjects with head upright were required to adjust a lighted bar in a dark room until the bar appeared vertical; the task was performed before and after 2 and 3 minutes of lateral head-tilt with their eyes closed. A visual spatial aftereffect was observed which varied as a function of the angle of head-tilt and which was opposite in direction to head-tilt.
D000360:Afterimage; D006801:Humans; D011187:Posture; D013028:Space Perception