Heritage language speakers inform the critical period hypothesis
for first and second language acquisition
This chapter considers how heritage language speakers,
bilinguals exposed to their L1 since birth either exclusively or
simultaneously with the majority language, shed new light on the
role of age in language acquisition. Investigating the ultimate
attainment of bilinguals with early and late exposure to their L1
and L2 helps disentangle how the roles of previous linguistic
knowledge and of quantity and quality of input interact with age of
onset of bilingualism. Comparing the linguistic and processing
abilities of heritage speakers and L2 learners allows us to
understand how the timing of input interacts with situational
factors and elucidates the developmental schedule of different
modules of the grammar. Early exposure is critical for aspects of
phonology, syntax, and morphology.
Article outline
- 1.Introduction
- 2.Age effects in child bilingual acquisition: Maturation or
language exposure?
- 3.Are heritage speakers like second language learners?
- 4.The impact of age of acquisition in different linguistic
modules
- 4.1Phonology
- 4.2Syntax and morphology
- 4.3Processing morphology
- 5.Discussion
-
References