title: [The upper hearing limit. A study of its dependence on age and sex with consideration of endogenous and exogenous factors].
abstract: In order to determine the upper limit of the audible frequency range as well as its age-dependency we have examined 198 persons whose ages varied from 3 to 90 years of which 111 were women. To correct for potential errors that might occur due to other factors which may differ from the age only, an additional 28 variables have been recorded besides the measurement of high-tone perception. The hearing experiment was based on the monaural exposition of a monofrequent test signal. Its frequency was continuously varied whereas the sound pressure level was kept as constant as possible. The results show a strong dependency of upper frequency limit at a given sound level with the age and some sex-differences. All the rest of possibly interfering variables (i.e. noise-exposition or ototoxic drugs) remained below the threshold of statistical significance. The approximately linear relationship between the age and the ability of high frequency perception shows a more pronounced and earlier loss of sensitivity (to high frequencies) in males than in females.
authors: Anthropologisches Institut, Universität Giessen.
authors: I
authors: I
authors: Lipp
authors: B
authors: B
authors: Jacobshagen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D001309:Auditory Threshold / Q000187:drug effects; D002648:Child; D002675:Child, Preschool; D004427:Ear Diseases / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009622:Noise; D012044:Regression Analysis; D012727:Sex Characteristics; D012907:Smoking / Q000503:physiopathology
vernacular_title: Die obere Hörgrenze. Eine Studie zu ihrer Abhängigkeit von Alter und Geschlecht unter Berücksichtigung endogener und exogener Faktoren.