Abstract
This study includes eight normal, not at-risk for deafness, neonates and infants of age ranging from 2 days to 1 year. BERA was done at 2 kHz. frequency at 80 dB intensity. In the majority of the subjects, only wave I, II, III and V could be definitely identified. It was observed that latencies of waves decreased as age of neonate/infant increased. Decrease of latency was more marked in first 6 months of life (wave V from 7.2 ms to 6. / ms) as compared to next six months (wave V from 6. 1 ms to 5.9 ms). This could be because of rapid myelination in the first six months of life.
Full Text
The Full Text of this article is available as a PDF (178.0 KB).
References
- 1.Deka R. C,, Deka D., Kacker S. K. Maturation of cochlea, auditory nerve and brainstem as observed by Auditory Brainstem Evoked Potentials in human infants and children. Indian Journal of Otolaryngology. 1986;38:56–58. [Google Scholar]
- 2.Fria T. J., Doyle W. J. Maturation of Auditory brainstem responses (ABR), additional perspectives. Ear Hear. 1984;5:361–365. doi: 10.1097/00003446-198411000-00008. [DOI] [PubMed] [Google Scholar]
- 3.Salamy A., Mckean C. M. Postnatal development of human brainstem potentials during the first year of life. EEG and Clinical Neurophysiology. 1976;40:418–426. doi: 10.1016/0013-4694(76)90193-0. [DOI] [PubMed] [Google Scholar]
- 4.Teas D. C, Klein A. J., Karmer S. J. An analysis of auditory brainstem responses in infants. Hearing Research. 1982;7:19–24. doi: 10.1016/0378-5955(82)90080-6. [DOI] [PubMed] [Google Scholar]
- 5.Zimmerman M. C, Morgan D. E., Dubo J. R. Auditory brainstem evoked response characteristics in developing infants. Annals of Otology Rhinclogy & Laryngology. 1987;96:291–299. doi: 10.1177/000348948709600311. [DOI] [PubMed] [Google Scholar]