Attrition at the interfaces in bilectal acquisition (Italian/Gallipolino)

The aim of this study is to investigate whether native speakers of Gallipolino, bilectals who have acquired Gallipolino as L1 (together with standard Italian) in their childhood, who have left Gallipoli after puberty and currently use standard Italian as their primary language, display effects of attrition with respect to subordinate clauses embedded under the complementizers ku and ka. Our hypothesis is that complementizer selection in Gallipolino exhibits emergent optionality (that leads to ungrammaticality) due to influence of standard Italian. To test this hypothesis, a grammaticality judgment task has been designed and administered to 14 participants