Conflict of interest: non-existent newborns at high risk led to the increased rate of survival with growing interest of health professionals in identifying risk factors of child development
[5][6]
[7] .Hearing disorder in childhood can cause various effects in communication and a number of secondary consequences, such as cognitiveperceptual, emotional, social, educational and intellectual changes, being considered a striking factor, especially in the first years of life
[8][9]
[10][11] . In this sense, it severally restricts children's ability to develop spoken language, since this is the period in which occurs the maturation of the auditory system.
Language plays a critical role in the perceptual organization, receipt and structuring of information, learning and social interactions of human being.