J. Phys. IV France 02 (1992) C1-169-C1-172
OTOÉMISSIONS ET AUDIOMÉTRIE DES TRAUMATISMES ACOUSTIQUES : CONSÉQUENCES POUR LES MODÈLES DE GENÈSE D'OTOÉMISSIONSP. AVAN, D. LOTH, M. TEYSSOU and C. MENGUY
Département de Biophysique (P.A.M. Neuro-sensoriel), Faculté de Médecine Lariboisière, Université Paris VII, 10 avenue de Verdun, F-75010 Paris, France
The amplitudes and detection thresholds of click-evoked otoacoustic emissions (c-EOE) and SFE were determined in 58 patients suffering from acoustic trauma. A multivariate statistical analysis was performed in order to investigate the relationships between EOE around 0.75, 1 and 2 kHz, and the various audiometric thresholds. Only one significant correlation was found between EOE threshold at F and auditory threshold at 2F, suggesting that some EOE properties are not frequency-specific. It is shown that the alternative hypothesis assuming that EOE amplitudes are proportional to the total number of residual active sites along the basal cochlea provides a much better fit to experimental data and is consistent with several models and experimental results.
© EDP Sciences 1992