The present article provides an exploration of ultimate attainment in second language (L2) and its limitations. It is argued that the question of maturational constraints can best be investigated when the reference population is bilingual and exposed on a regular basis to varieties of their first language (L1) that show cross-linguistic influence.…

Develops criteria to establish whether a second language (L2) speaker has achieved native-like proficiency. The study compares the performance of near-native speakers of English, non-native speakers, and controls on two tasks designed to tap aspects of Universal Grammar claimed to be subject to critical period effects. Findings reveal that…