ABSTRACT

A disadvantage in identifying foreshortened relative to more canonical views of objects has been widely reported, both for normal subjects and for neuropsychological patients. This chapter investigates the nature of the relation between the degree of foreshortening of the main axis of the object and the ease of identification of the object from that view. If the availability of the main axis is important for identification, then views of objects in which the main axis is more difficult to assign should be harder to identify. This was tested by comparing the ease of identification of familiar objects across a range of depth-rotated views which were foreshortened to varying degrees. If the main axis is assigned using image cues that are derived solely from the occluding contour of the object, then stimuli which differ only in the availability of internal detail should produce equivalent view effects.