Otoacoustic Emissions, SpontaneousSinusoidal tones originating in the cochlea. These faint sounds, with levels between 10-30 decibels, are usually not recognized by the persons having them. However, the emissions can be recorded using sensitive microphones placed in the ear canals. The clinical significance of having or not having spontaneous otoacoustic emissions is unclear; however, some association between tinnitus and the spontaneous emissions has been reported.
PersonsPersons as individuals (e.g., ABORTION APPLICANTS) or as members of a group (e.g., HISPANIC AMERICANS). It is not used for members of the various professions (e.g., PHYSICIANS) or occupations (e.g., LIBRARIANS) for which OCCUPATIONAL GROUPS is available.
EarNo Entry for Ear
AssociationA functional relationship between psychological phenomena of such nature that the presence of one tends to evoke the other; also, the process by which such a relationship is established.
TinnitusA nonspecific symptom of hearing disorder characterized by the sensation of buzzing, ringing, clicking, pulsations, and other noises in the ear. Objective tinnitus refers to noises generated from within the ear or adjacent structures that can be heard by other individuals. The term subjective tinnitus is used when the sound is audible only to the affected individual. Tinnitus may occur as a manifestation of COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; and other conditions.
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