Piaget's system of spatial logic: The semiosis of index
Donna E. E. West · Semiotica · 2014
Piaget's system of cognitive development is analyzed, namely, the semiosis of indexical representation and use. His notion of scheme is discussed, capitalizing on index as the most primary semiotic tool in early ontogeny; afterward, advances in spatial skills (topological and projective reasoning) are discussed in light of the foundational role of index in unfolding these spatial concepts. Finally, index's primary function in the onset and perpetuation of perspective-taking competencies constitutes the essential thrust. The claim is that index is the most essential component to ascertain advancements in spatial logic, in that it organizes and triggers the coalescence of temporal memories of different perceptual states. These memories, in turn, serve as the foundation for complex spatial cognitions (decentration and reversibility) necessary to understand points of view.