Monitoring auditory cortical plasticity in hearing aid users with long latency auditory evoked potentials: a longitudinal study

Clinics
Renata Aparecida LeiteCarla Gentile Matas

Abstract

The objective of this study was to compare long-latency auditory evoked potentials before and after hearing aid fittings in children with sensorineural hearing loss compared with age-matched children with normal hearing. Thirty-two subjects of both genders aged 7 to 12 years participated in this study and were divided into two groups as follows: 14 children with normal hearing were assigned to the control group (mean age 9 years and 8 months), and 18 children with mild to moderate symmetrical bilateral sensorineural hearing loss were assigned to the study group (mean age 9 years and 2 months). The children underwent tympanometry, pure tone and speech audiometry and long-latency auditory evoked potential testing with speech and tone burst stimuli. The groups were assessed at three time points. The study group had a lower percentage of positive responses, lower P1-N1 and P2-N2 amplitudes (speech and tone burst), and increased latencies for the P1 and P300 components following the tone burst stimuli. They also showed improvements in long-latency auditory evoked potentials (with regard to both the amplitude and presence of responses) after hearing aid use. Alterations in the central auditory pathways can be identified using P1-N1 a...Continue Reading

References

Oct 1, 1970·Archives of Otolaryngology·J Jerger
Apr 13, 2011·Brain : a Journal of Neurology·Steven C CramerSophia Vinogradov

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Citations

Apr 12, 2021·International Journal of Pediatric Otorhinolaryngology·Marjan SoleimaniNariman Rahbar

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Methods Mentioned

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cochlear implants
cochlear implant

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