when a young infant hears the same sound over and over such as ba-ba-ba- what will happen
Phonological development Reduplicated babbling contains consonant-vowel (CV) syllables that are repeated in reduplicated series of the same consonant and vowel (e.g., [bababa]). At this stage, infants’ productions resemble speech much more closely in timing and vocal behaviors than at earlier stages. Starting around 6 months babies also show an influence of the ambient language in their babbling, i.e., babies’ babbling sounds different depending on which languages they hear. For example, French learning 9-10 month-olds have been found to produce a bigger proportion of prevoiced stops (which exist in French but not English) in their babbling than English learning infants of the same age.[19] This phenomenon of babbling being influenced by the language being acquired has been called babbling drift.[20]
Hearing loss Hearing loss may be caused by a number of factors, including: genetics, ageing, exposure to noise, some infections, birth complications, trauma to the ear, and certain medications or toxins.[2] A common condition that results in hearing loss is chronic ear infections.[2] Certain infections during pregnancy such as syphilis and rubella may also cause hearing loss.[2] Hearing loss is diagnosed when hearing testing finds that a person is unable to hear 25 decibels in at least one ear.[2] Testing for poor hearing is recommended for all newborns.[6] Hearing loss can be categorised as mild, moderate, moderate-severe, severe, or profound.[2] There are three main types of hearing loss, conductive hearing loss, sensorineural hearing loss, and mixed hearing loss.[3]