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Research Journal of Pharmaceutical , Biological and Chemical Sciences Development of Binaural Hearing in Children 4-11 Years Old

Present study addresses the development of binaural hearing in ontogenesis. In children, during their development from 4 to 11 years of age, the accuracy of localization increases, which is caused by the establishment of inter-hemispheric connections of the cortex. Imperfection of the acoustic-localizing function in small children (4-6 years old) is explained by the fact that, in this age, sound localization is mainly conducted with binaural mono-hemispheric mechanism. Along the development of inter-hemispheric connections, cortical involvement in the sound localization processes significantly increases, and precise differentiation of the sensations, including acoustical-spatial sensations, becomes possible. And in the age of 10-11 years old, when the myelination of trans-callosal tracts is completed, sound locating mechanism gradually becomes binaural bi-hemispheric, as in adults.