Hearing impairment
hideA 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.
For more information about Hearing impairment, read the full article at
Wikipedia.
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News tagged with hearing loss
Now hear this: Mouse study sheds light on hearing loss in older adults
Nov 09, 2009 |
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(PhysOrg.com) -- Becoming "hard of hearing" is a standard but unfortunate part of aging: A syndrome called age-related hearing loss affects about 40 percent of people over 65 in the United States, and will afflict an estimated ...
Squeak, squeak -- can you hear me now?
Medicine & Health / Neuroscience
Nov 09, 2009 |
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What do you get when you cross a mouse with poor hearing and a mouse with even worse hearing? Ironically, a new strain of mice with "golden ears" - mice that have outstanding hearing as they age.
Search results for hearing loss
A sound practice: Cochlear implants restore children's hearing
Nov 05, 2009 |
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(PhysOrg.com) -- Ava Martin seems less nervous than her parents as the three sit in an audiologist’s office at UC Irvine Medical Center a few days after Labor Day. In August, the 6-year-old had surgery to place a cochlear ...
More action is needed to support millions of tinnitus sufferers worldwide
Nov 03, 2009 |
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As many as one in seven people will experience tinnitus, or ringing in their ears, at some time of their life, but not enough is being done to support patients who experience this distressing condition, according to an extensive ...
Active hearing process in mosquitoes
Nov 20, 2009 |
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A mathematical model has explained some of the remarkable features of mosquito hearing. In particular, the male can hear the faintest beats of the female's wings and yet is not deafened by loud noises.
Rocket science leads to new whale discovery
Nov 24, 2009 |
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Rocket science is opening new doors to understanding how sounds associated with Navy sonar might affect the hearing of a marine mammal - or if they hear it at all.
Auditory illusion: How our brains can fill in the gaps to create continuous sound
Medicine & Health / Neuroscience
Nov 25, 2009 |
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It is relatively common for listeners to "hear" sounds that are not really there. In fact, it is the brain's ability to reconstruct fragmented sounds that allows us to successfully carry on a conversation in a noisy room. ...
Elderly depression lessened when relatives keep them informed on family matters
Medicine & Health / Psychology & Psychiatry
Nov 04, 2009 |
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The elderly are less likely to feel depressed if their relatives keep them updated about important family matters, a new study indicates.
Long-term testicular cancer survivors at high risk for neurological side effects
Nov 25, 2009 |
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Long-term survivors of testicular cancer who were treated with cisplatin-based chemotherapy had more severe side effects, including neurological side effects and Raynaud-like phenomena, than men who were not treated with ...
Barnes & Noble reports 2Q loss, cuts guidance
Nov 24, 2009 |
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(AP) -- Barnes & Noble on Tuesday posted a larger second-quarter loss than last year and lowered its profit forecast for this quarter in anticipation of weak holiday sales and high costs of launching its ...
Heavy drinkers exercise to burn off alcohol: British study
Nov 26, 2009 |
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More than a quarter of drinkers in England who exercise regularly do so in an attempt to make up for bingeing on alcohol, according to a survey published Thursday.
Sony optimistic on 3-D TVs, in-house display
Nov 26, 2009 |
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(AP) -- A third to a half of the Sony Corp. TV sets sold annually will be packed with 3-D features by the year ending March 2013, a senior executive said Thursday.
List of search results for hearing loss
