The fine structure of the Topic field

Based on interface evidence, this paper shows that the interpretation of discourse categories relies on syntactic conditions. Specifically, the existence of a systematic connection between formal properties and discourse functions shows that Topics are licensed in dedicated positions in the C-domain, which correspond to specific realizations at the PF-interface. Different types of Topics thus correspond to specific tonal events and show A’-properties which discard a movement approach. Finally, the interface properties of postverbal subjects are examined, showing that their position does not depend on the argument structure of the verb and is not necessarily different from the position of (referential) preverbal subjects. Though the present analysis is mainly concerned with Italian, a comparison with Bantu data is also proposed in order to show similarities, discuss (apparent) discrepancies and highlight implications for future research.