Learn More
Transiently evoked otoacoustic emissions (TEOAEs) were recorded from 525 ears (children, 3-11 years). Based on visual evaluation, the recordings were classified as TEOAEs present, absent or uncertain. Within each group the distribution of response level and reproducibility as well as of four derived parameters were calculated. The latter comprised: (1)(More)
The contralateral stapedius reflex elicited by sinusoidal electrostimulation via cochlear implant was investigated in 12 patients. Contraction of the middle ear muscle was monitored by time-resolved synchronized digital sampling of the impedance change in the contralateral ear. The reflex was detected in all patients in whom the uncomfortable loudness level(More)
The growth function of the contralateral stapedius reflex elicited by analog electrostimulation via cochlear implant was investigated in 9 patients and compared to reflex functions obtained for acoustic stimulation in 3 normal-hearing subjects. Sinusoidal signal bursts with the same time pattern were used for the two stimulation modes, the contraction of(More)
We determined the necessary signal-to-noise threshold for 50% sentence discrimination in 130 patients with sensorineural hearing disorders with and without a hearing aid, as well as the minimum monosyllable discrimination loss without hearing aid. A significant correlation coefficient was found to exist of the signal-to-noise threshold with vs. that without(More)
In order to improve the acceptability of universal newborn hearing screening (UNHS) among parents, several authors have proposed that information about hearing screening be provided to them. The purpose of the present study was to test the hypothesis that mothers who are informed about their baby's hearing test are more likely to have a positive attitude(More)
The relation between accessible benefit and hearing loss in combination with age of the patient is analysed. The degree of hearing loss and improvement derived by hearing aid use as found in this work is based on the individually determined speech reception threshold (SRT) for the condition with and without hearing aid in a noiseless environment. It was(More)
The estimation of the maximum comfort loudness levels (MCL) by measurements of the electrically elicited stapedius reflex was examined in six experienced cochlear implant users supplied with the COMBI 40 implant system. The stapedius reflex was tested and loudness scaling was performed simultaneously using an up/down stimulation protocol close to the reflex(More)
Based on a variety of experimental and clinical studies the diagnostic significance of transient evoked otoacoustic emissions (TEOAEs) is well established. This is also due to the availability of commercial hardware and software which is optimized for the recording of click-evoked OAEs. In cases with distortion product otoacoustic emissions (DPOAEs) the(More)
The stapedius reflex elicited by electrical stimulation was investigated in 21 deaf individuals supplied with an inner ear prosthesis. All patients were implanted with the Vienna cochlear implant using intra or extracochlear electrodes. Analog stimulation with sinus bursts of various durations (25, 50, 100, 300, 500 ms) and frequencies (125, 500, 1000, 2000(More)
In a 6-year-old boy with idiopathic unilateral deafness, click-evoked otoacoustic emissions were recorded in both ears with similar amplitudes and time courses. Following stimulation of the deaf ear, no component of auditory-evoked brainstem potentials was recorded. No space-occupying lesion was observed with high-resolution CT. At retest 1 year later these(More)