In one experiment objects with varying complexity were used as stimuli. On each trial an object or a distorted version is shown at an arbitrary orientation. The subject’s task is to decide whether the object is distorted or not, under several viewing conditions (monocular/binocular, with/without motion parallax, and near/far). The subject’s performance is measured by the detectability d', a conventional dependent variable in signal detection experiments. Highest d’ values were measured for the 3D display when the subject is allowed to walk around the display. |