Discourse module in mind: a biolinguistical hypothesis of macro-structure.

Theoretical linguistics embraces the analytic micro-system of representation as the core of language ability, and thus deals primarily with the computations of phonology, morphology, and syntax for structural processes. Looking into recent progress in human biology, however, there have been continuous indications that the internalized language is organized for creating structural sequences larger than phrases and sentences. Research on the right cerebrum of the brain, for example, shows its neurological tasks for composing a coherent story while the studies of individuals with deficits in underpinning genotypes reveal disruptions in constructing narratives. Moreover, investigations of human evolution are compelled to acknowledge a mysterious gap in psychological capacities of Homo sapiens and their later descendant, Homo sapiens sapiens, implicating a distinct stage of the language origin beyond syntax. What all these pieces of neurobiological evidence suggest is that humans have been bestowed an inherent linguistic capability for computing the synthetic macro-system of representation. [ABSTRACT FROM AUTHOR]