Representations of Spatial Form
In the preceding chapter we argued that our knowledge of the world was stored in terms of sets of structural descriptions. Recognition of an object occurs when that object matches some stored structural description. Further, we suggested that the object concept consists of both this structural description, or recognition procedure, and a set of intentions or meanings which motivates the construction of and search through the stored structural descriptions. This conceptual system of structural descriptions plus meanings is organized at the level of everyday objects, what Brown (1958) calls the "level of usual utility" and Rosch (1977) calls "basic level objects." A lollipop, for example, is recognized as such because it can take the particular structural description for lollipop which includes visual/spatial properties such as portable, sweet, and so on, and satisfy the significance or intention or meaning of "things to eat".