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.
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