Rhombus Displays




This demo illustrates the insufficiency of either VA, IOC or feature tracking to explain human perception of a horizontially moving rhombus. a. A ``narrow'' rhombus at high contrast appears to move horizontally (consistent with IOC or feature tracking). b. A ``narrow'' rhombus at low contrast appears to move diagonally (consistent with VA). c. Velocity space constraints for a narrow rhombus. d-e. A ``fat'' rhombus at low and high contrast appears to move horizontally (consistent with IOC or feature tracking). f. Velocity space constraints of a fat rhombus.

You can view these displays as Flash animations by clicking here .