University of Missouri research shows that infant vocalizations are primarily motivated by infants' ability to hear their own babbling. Additionally, infants with profound hearing loss who received cochlear implants soon reached the vocalization levels of their peers, putting them on track for language development.
Early intervention by 6 months of age makes a difference in language acquisition of young deaf children. This article describes what we know and don't know about the impact of early intervention and the implications for policy and practice.
Hearing screening test for all
babies no later than 1 month of age
Diagnostic evaluation by an audiologist no later than 3 months of age if baby did not pass hearing screening test
Early intervention no later than 6 months of age if baby is diagnosed with a hearing loss