Fig. 8 Radial movement of a visual stellate object that itself remained unchanged throughout the episode. Stellate form appeared near edge of right half of field just below the horizontal and consisted of approximately six pointed leaf-like projections alternately red and blue. It appeared on a small area of darkness, moved slowly toward the left and upward, passing above the fixation point to beyond the middle line. Then it returned to its starting place, retraced this path once or twice and passed to the right edge of the field, suddenly disappearing at the spot where it began. (Gowers WR: Visual sensations in migraine. In Subjective Sensations of Sight and Sound: Abiotrophy and Other Lectures. London: Churchill, 1907)