Hearing is normally evaluated up to 8 kHz, even though testing can easily be performed at higher frequencies (up 16 or 20 kHz). The range beyond kHz often referred as the extended high frequency (EHF) range. This study aimed explore relationship between EHF hearing thresholds (HTs) and distortion product otoacoustic emissions (DPOAEs) in adult subjects. Also of interest were effects presence sp...

The purpose of this study was to investigate the efferent medial olivocochlear system through the use of otoacoustic emissions and especially the modifications that occur at this level with age. The activity of outer hair cells (OHCs) (peripheral) and of the efferent medial olivocochlear (MOC) system (neural and central) was examined by means of distortion product otoacoustic emissions (DPOAEs)...