Effects of cochlear hypoxia on otoacoustic emissions compared with auditory evoked potentials

Auteurs-es

  • Shoichi Sawada Univ of Toronto, Toronto, Canada
  • Claudine Gysin Univ of Toronto, Toronto, Canada
  • Richard Mount Univ of Toronto, Toronto, Canada
  • Robert V. Harrison Univ of Toronto, Toronto, Canada

Mots-clés :

Bioelectric potentials, Cells, Diseases, Living systems studies, Neurophysiology, Pediatrics, Auditory evoked potentials, Cochlear hypoxia, Otoacoustic emissions

Résumé

The effects of mild systemic hypoxia on inner haircell (IHC) and outer haircell (OHC) function were investigated in adult chinchillas free from ear disease. IHC/cochlear afferent function, as reflected in measured neural evoked responses, are found more sensitive to prolonged mild cochlear hypoxia than the activity of OHCs, as revealed in measured otoacoustic emissions. That hypoxia can have an initial effect on the INC/cochlear afferents confirm that it is an important etiological factor in some types of auditory neuropathy.

Fichiers supplémentaires

Publié-e

1998-09-01

Comment citer

1.
Sawada S, Gysin C, Mount R, Harrison RV. Effects of cochlear hypoxia on otoacoustic emissions compared with auditory evoked potentials. Canadian Acoustics [Internet]. 1 sept. 1998 [cité 18 juill. 2024];26(3):78-9. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1166

Numéro

Vol. 26 No. 3 (1998)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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