Bruno Di Biase

Exploring the Typological Plausibility of Processability Theory: Language Development in Italian Second Language and Japanese Second Language.

This article aims to test the typological plausibility of Processability Theory (PT) (Pienemann, 1998). This is ‘a theory of processability of grammatical structures... [which] formally predicts which structures can be processed by the learner at a given level of development’ (p. xv). Up till now the theory has been tested mainly for Germanic languages, while here we propose to test it for two typologically different languages, namely Italian and Japanese. Language specific predictions for these two languages will be derived from PT, and the structures instantiating them will be described within a Lexical Functional Grammar (LFG) framework. The occurrence and distribution of relevant structures will then be analysed in empirical, naturalistic data produced by adult learners. To test whether PT is typologically plausible we will demonstrate the following points for Japanese and Italian: • The notion of ‘exchange of grammatical information’ is a productive concept for typologically different languages. • Predictions that can be derived from the general architecture of the theory for specific languages will be borne out by empirical observation. (Pienemann 1998: 166).