In addition to providing an account of the empirical facts of language, a theory that aspires to account for language as a biologically based human faculty should seek a graceful integration of linguistic phenomena with what is known about other human cognitive capacities and about the character of brain computation. The present discussion note…

The right roof constraint'' is the assumption that rightward-movement rules are always upward-bounded; see J.R. Ross' dissertation, Constraints on Variables in Syntax'' (MIT, 1967). (RS)

Through corpus analysis and experimentation, this article demonstrates that both grammatical complexity (heaviness) and discourse status (newness) simultaneously and independently influence word order in two English constructions. Argues that heavy and new constituents facilitate the processes of planning and production. (Author/VWL)