Genetics

Researcher builds new model to examine Usher syndrome

Usher syndrome, a rare inherited genetic disease, is a leading cause of combined deafness and blindness with type 2A (USH2A) being the most common form. USH2A, caused by mutations in the USH2A gene, can include hearing loss ...

Diseases, Conditions, Syndromes

Is tinnitus making you miserable?

Tinnitus is a frequently reported symptom for audiology patients. It's commonly referred to as ringing in the ears, but it can be different sounds like buzzing, roaring, clicking, hissing or humming.

Pediatrics

Study approves test for babies' hearing aids

Parents of the one in 1,000 newborn babies with hearing loss, might soon be able to have the reassurance that their babies are hearing speech through their hearing aids, thanks to a new test.

page 1 from 40

Hearing impairment

A hearing impairment or deafness is a full or partial decrease in the ability to detect or understand sounds. Caused by a wide range of biological and environmental factors, loss of hearing can happen to any organism that perceives sound. "Hearing impaired" is often used to refer to those who are deaf, although the term is viewed negatively by members of Deaf culture, who prefer the terms "Deaf" and "Hard of Hearing".

Sound waves vary in amplitude and in frequency. Amplitude is the sound wave's peak pressure variation. Frequency is the number of cycles per second of a sinusoidal component of a sound wave. Loss of the ability to detect some frequencies, or to detect low-amplitude sounds that an organism naturally detects, is a hearing impairment.

This text uses material from Wikipedia, licensed under CC BY-SA