[Frequency-dependent cochlear microphonics in inner ear hearing loss with various pitch thresholds].
Promontory recordings of the cochlear microphonics (CM) after stimulation with 0.5, 1 and 2 kHz tone bursts at 120 dB SPL were performed on normal subjects and patients with various, levels of sensory hearing loss. A significant correlation was found between frequency-related CM amplitudes and the configuration of the pure-tone audiogram. Such recordings provide objective information on hearing abilities at low and middle frequencies and are thus a relevant tool in clinical audiometry.
Marangos
N
N
HNO-Klinik, Medizinischen Hochschule Hannover.
Hesse
G
G
Mausolf
A
A
D001309:Auditory Threshold / Q000502:physiology*; D003055:Cochlear Microphonic Potentials; D003056:Cochlear Nerve / Q000503:physiopathology; D005072:Evoked Potentials, Auditory; D006316:Hearing Loss, High-Frequency / Q000503:physiopathology; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology*; D006801:Humans; D010897:Pitch Discrimination / Q000502:physiology*
Frequenzabhängige Cochlear Microphonics bei Innenohrschwerhörigkeiten mit unterschiedlichen Tonschwellen.