Influence of risk indicators for hearing loss at birth on the development of hearing abilities

• Grant number: 09/10577-8
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2009
• End date: October 31, 2011
• Field of knowledge: Health Sciences - Speech Therapy
• Principal Investigator: Alessandra Spada Durante
• Grantee: Alessandra Spada Durante
• Host Institution: Faculdade de Ciências Médicas da Santa Casa de São Paulo (FCMSCSP). Fundação Arnaldo Vieira de Carvalho. São Paulo , SP, Brazil

Abstract

Children with a history of risk indicators for hearing at birth should be monitored in the development of the auditory system. Recent studies have pointed to a cochlear and cortical reduced physiology when compared with children matched by age and health, uneventful. This reduced physiology could be an indication of risk for the development of auditory processing disorders. The audiological evaluation by objective methods of assessment, highlighting the auditory evoked potential and suppression of otoacoustic emissions, and behavioral tests of auditory temporal processing can be used as an index of development of the auditory system, the perception of speech and auditory discrimination. The objective of this work is to compare the latency, amplitude and morphology in the records of the auditory evoked potentials of medium and long latency and the magnitude of suppression of otoacoustic emissions and performance tests of auditory temporal processing in children from 8 to 14 years with risk indicators for hearing at birth with the performance of hearing children the same age, born at term with low risk for the development and amendment without learning difficulties and hearing subject to the same protocol of assessment. (AU)