FACTORS AFFECTING THE ONSET AND MAGNITUDE OF LINEAR VECTION

The role of central and peripheral vision in the production of linear vection was assessed by using displays in which flow structure and sou rces of internal and external depth information were manipulated. Radi al optical flow was more effective for inducing self-motion in both ce ntral and peripheral visual fields than was lamellar flow in displays of the same size. The presence of external occlusion information was n ecessary to induce linear vection when small displays were composed of lamellar flow, whereas the effectiveness of small radial displays did not depend on the availability of occlusion edges.