| خلاصه مقاله | Introduction: The aim of this study was to assess the effect of cochlear implantation on auditory and speech perception and the effect of intervention on the acquisition of auditory and speech and language skills.
Materials and methods: We conducted a search in PMC, Science Direct and Neuroscience, PubMed and Medline databases. The present information was retrieved from articles published from 1985 to 2018.
Results: Speech perception ability is a complex and multidimensional phenomenon that has a close relationship with hearing in humans. Speech perception tests include the recognition of stress patterns, consonants, vowels, words, and sentences. Sound awareness is a capability that develops rapidly, while speech comprehension is the final and most important ability and is required for communication. Hearing loss affects all aspects of a person's life, including auditory perceptual function in particular, and may reduce general attention to speech sounds compared with normal-hearing peers. Speech perception and comprehension in deaf children is poorer than in normal children, and auditory intervention is necessary to accelerate the development of auditory skills. The findings show that infants who undergo cochlear implantation are able to recognize and identify speech sounds.
Conclusion: Cochlear implantation has a beneficial effect in improving auditory perception in deaf children, and the results have been satisfactory in increasing their verbal auditory performance. When children with congenital hearing loss are fitted with implants at a younger age and the duration of rehabilitation after cochlear implantation is longer, the child's performance is better in terms of the acquisition of language and speech skills. Therefore, according to recent studies, both factors are recommended. |