The concept of a "sensitive period" for language learning in humans means that:
A) if language is not learned by a certain age, it will never be learned
B) first languages can be learned at any age, but second languages must be acquired by middle adulthood
C) if a first language is not learned by a certain age, language acquisition will become more difficult
D) vocabulary can be learned at any age, but there is a small window during development when grammar can be acquired

Question

Quizplus · Accepted Answer

The concept of a "sensitive period" for language learning means that if a first language is not learned by a certain age, language acquisition will become more difficult. This does not mean that language cannot be learned after this period, but it may require more effort and may not be as automatic or fluid as if it had been learned during the sensitive period.

The Concept of a "Sensitive Period" for Language Learning in Humans