For example, visual neglect produced by brain damage is duplicated in similar neglect of visual images. This should be expected if imagery utilizes the same anatomical pathways as vision, because one of the major functional goals of vision is to throw as much unneccesary information away as is possible. Images can be rotated, expanded, shrunk, and folded. Individual Differences There are many different aspects of imagery, consistent with the claim that it is subsuemed by many subsystems, which in turn are likely related to many different brain areas. Much effort has been expended in recent years to understand what a mental image is.
Depictive representations differ from propositional representations in almost every respect.
Their syntax is a spatial arrangement of points and empty space. Their semantics comes from resemblance to the things that they represent. Cognitive psychology has conducted numerous experiments to get at this issue. In contrast, space is not an intrinsic property of propositional images. The intrinsic spatial nature of images was tested by Kosslyn and his colleagues via scanning experiments.