Language developmental milestones in sign language

Linguistics and neuroscience studies generally show that language acquisition and development in sign language L1 (as a first language) are on similar developmental timeline as spoken languages.


Scan language developmental milestones in Ausralian Sign Language (Auslan) from birth to 8 years old. Excellent detailed descriptions of bilingual developmetn scale in English and Auslan.

Levesque, Elizabeth (2008). "Bilingual English and Auslan Development Scale."

Babbling in sign language.