Lisa Brunetti

On the semantic and contextual factors that determine topic selection in Italian and Spanish

Abstract In this article the reasons for an argument to be chosen as sentence topic are discussed. I argue that a topic expression can be prototypical or not, depending on how its thematic/semantic properties reflect humans preference to talk about certain things and not others. Although subjects are mostly prototypical topics, I show that a non-subject topic is prototypical with predicates that select a patient subject and an IO with protoagent properties but volition (psych-verbs, unaccusative verbs). Constructions like passives or arbitrary subjects may also have a prototypical topic object. As for nonprototypical topics, they are generally left dislocated direct objects. Their presence is justified by the fact that discourse needs may overrule the requirement of a topic to be prototypical. In particular, they are used in contrastive contexts. It follows that whenever a topic is non-prototypical, it is automatically interpreted as contrastive.