The role of linguistic typology, target language proficiency and prototypes in learning aspectual contrasts in Italian as additional language

The study examines how prototypes and typological relationships between the L1, the L2 and the target language (TL) interact with TL proficiency in learning Italian as additional language. Low-proficiency and high-proficiency undergraduate learners of Italian (N = 25) with Swedish as L1 performed an oral retelling story test, aiming to elicit the Italian aspectual contrast perfective-imperfective. Their tense selection was analyzed considering the predicates' lexical aspect and the learners' knowledge of a Romance L2, or lack thereof. The findings show that the typological proximity between the L2 and the TL exerts a differential role depending on TL proficiency. Initially, it is beneficial for accelerating the overall emergence of the imperfetto as an aspectual marker. However, the prototype factor and, more specifically, the predicates' dynamicity influences the selection of past inflectional morphology. At more advanced stages, knowledge of a Romance language helps learners move beyond prototypical associations with the passato prossimo, but it does not seem to influence the use of the imperfetto among high-proficiency learners. These results are discussed in the light of research on the second and additional language learning of aspectual contrasts in Romance languages.