Spatial properties, include attributes of scenes such as location and depth. Object properties include attributes such as color and shape. Some studies suggest that the same neural mechanisms that process images in perception also exist in imagery and memory. This means that object properties and spatial properties may be disassociated when we remember a scene. For example, we may remember where a particular passage of text is or a diagram in a book, but may forget what the passage is, or what the diagram looks like.
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Perceptual Organization . T he layout of individual elements, such as letters, can determine how they group, perceptually. For example, in some circumstances, letters that are close to each other may group, regardless of their individual shapes. In other circumstances, letters of the same shape may group. C lick here for examples , bibliography.