Module (method.) ; Domain-specificity (cognitive science) ; Aufgabenspezifität (Kognitionsforschung) ; Module (cognitive science) ; Dual language acquisition; Bimodal language acquisition; Spracherwerb (biling.) ; Language acquisition (biling.) ; Bilingual language acquisition ; Differenzierung (Zweisprachiger Spracherwerb) ; Differentiation (bilingual language acquisition) ; Language differentiation (bilingual language acquisition) ; Second language acquisition (psycholing.) ; Transfer (second language acquisition) ; Transfer (Zweitspracherwerb) ; Cross-linguistic influence (second language acquisition) ; Interference (second language acquisition)