News tagged with hearing

Related topics: hearing loss

Pharma firms turn attention to hearing loss

Hearing loss affects 36 million Americans to some degree, often leaving them feeling isolated, but it has received little attention from the pharmaceutical industry—until now. Small firms have brought a handful of potential ...

Apr 09, 2014
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How the brain processes musical hallucinations

A woman with an "iPod in her head" has helped scientists at Newcastle University and University College London identify the areas of the brain that are affected when patients experience a rare condition called ...

Jan 28, 2014
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Discovering how the brain ages

Researchers at Newcastle University have revealed the mechanism by which neurons, the nerve cells in the brain and other parts of the body, age. The research, published today in Aging Cell, opens up new avenues of understanding ...

Sep 12, 2012
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Hearing loss affects old people's personality

As people approach old age, they generally become less outgoing. New research from the University of Gothenburg shows that this change in personality is amplified among people with impaired hearing. The findings emphasize ...

Mar 31, 2014
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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