title: [Relations between the summation potential and frequency selectivity].
abstract: In cases of inner ear diseases, e.g.m. Ménière, summation potential (SP) can be measured using the extratympanic elektrocochleographic method. This potential is a consequence of hydrops in the cochlea. In 128 patients with confirmed SP, it was also possible to measure frequency selectivity (FS) using the psychoacoustic method. Reduced FS was found to a greater or lesser degree in the basal and apical turn of the cochlea. It can be assumed that both phenomena are to be attributed to the same cause.
authors.affiliation: Klinik für Hals-Nasen-Ohrenkrankheiten, Martin-Luther-Universität Halle-Wittenberg.
authors.forename: H G
authors.initials: HG
authors.lastname: Demus
mesh_terms: D001300:Audiometry, Evoked Response / Q000379:methods*; D006198:Hair Cells, Auditory / Q000503:physiopathology*; D006801:Humans; D008575:Meniere Disease / Q000175:diagnosis* / Q000503:physiopathology; D010897:Pitch Discrimination / Q000502:physiology*; D011571:Psychoacoustics; D014012:Tinnitus / Q000175:diagnosis
vernacular_title: Beziehungen zwischen Summationspotential und Frequenzselektionsvermögen.