Visual Spatial Aftereffect from Prolonged Head-Tilt

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Science  02 Dec 1966:
Vol. 154, Issue 3753, pp. 1201-1202
DOI: 10.1126/science.154.3753.1201


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.