ABSTRACT
This chapter lists out the major emerging principles of perceptual research. It represents the present state of perceptual science by the list of principles presented here. The chapter discusses distinguish between two levels of emerging principle, the metaprinciple and the general principle. The metaprinciple makes a statement that extends across many issues and describes a global aspect of perceptual processing. As its name suggests, a metaprinciple is a major organizing conclusion that encompasses many of the less "general" principles themselves. Meta-principles are the universais that emerge when one studies visual perception; they reflect the tenets of a global epistemology of visual knowledge acquisition. Visual perception, in large part, is an active process dependent on global properties, multiple dimensions, and the state of the perceiver. Colors are certainly not coded by isomorphic representations; this disassociation raises doubts about the necessity of isomorphism where it does fortuitously occur, for example, in the spatial domain.
