News tagged with hearing
Technology accessibility is improving, but big challenges lie ahead
When the iPad debuted two years ago, there was lots of talk about whether people beyond the iPhone and Mac faithful would use such a thing.
May 16, 2012 |
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Navy study: Sonar, blasts might hurt more sea life
(AP) -- The U.S. Navy may hurt more dolphins and whales by using sonar and explosives in Hawaii and California under a more thorough analysis that reflects new research and covers naval activities in a wider ...
May 11, 2012 |
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Manatee hearing good enough to sense approaching motorboats
Every year, manatees are injured in boat collisions. Why don't they just move when they hear a boat approach? A team of scientists led by Joe Gaspard from Mote Marine Laboratory and Aquarium, USA, have found that manatee ...
Apr 12, 2012 |
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Specialization for underwater hearing by the tympanic middle ear of the turtle
A group of biologists from Denmark and the US led by Jakob Christensen-Dalsgaard, University of Southern Denmark, and Catherine Carr, University of Maryland, have shown that the turtle ear is specialized for underwater hearing. ...
Mar 21, 2012 |
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50 million year old cricket and katydid fossils hint at the origins of insect hearing
How did insects get their hearing? A new study of 50 million year-old cricket and katydid fossils — sporting some of the best preserved fossil insect ears described to date— help trace the evolution ...
Other Sciences / Archaeology & Fossils
Jan 03, 2012 |
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Audio systems pioneer Villchur dies at 94 in NY
(AP) -- Edgar Villchur, who went from repairing radios in his New York City shop to inventing groundbreaking audio equipment and hearing aids, has died. He was 94.
Oct 18, 2011 |
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Ancient whale skulls and directional hearing: A twisted tale
Skewed skulls may have helped early whales discriminate the direction of sounds in water and are not solely, as previously thought, a later adaptation related to echolocation. University of Michigan researchers ...
Other Sciences / Archaeology & Fossils
Aug 22, 2011 |
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Research with tropical frogs shedding light on human hearing and attention disorders
A study conducted by Hamilton Farris, PhD, Research Assistant Professor of Neuroscience and Otorhinolaryngology at LSU Health Sciences Center New Orleans, reveals new information about the way tungara frogs in the tropical ...
Aug 02, 2011 |
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Comfort or conflict: Earlier Down syndrome test
(AP) -- The results of the blood test revealed only a risk, but when she saw them, she still threw up. Now she had to find out for sure.
Jun 13, 2011 |
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Sound safety: Novel device with rock 'n' roll roots may protect listeners
Engineers investigating "listener fatigue" -- the discomfort and pain some people experience while using in-ear headphones, hearing aids and other devices that seal the ear canal from external sound--have ...
May 17, 2011 |
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Laser printing speeds parts on demand to manufacturers
Pull into the auto repair shop with a smashed bumper, and there's no wait while they order a replacement. Instead, the technician downloads specifications from the manufacturer's database. You both watch as a laser beam probing ...
Apr 27, 2011 |
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Sanofi gets expanded meningitis vaccine approval
(AP) -- Sanofi Pasteur, the vaccines division of Sanofi-Aventis, said Monday the Food and Drug Administration approved the company's bacterial meningitis vaccine Menactra for children between the ages of 9 months and 23 months.
Medicine & Health / Medications
Apr 25, 2011 |
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It's not over when it's over: Storing sounds in the inner ear
Research shows that vibrations in the inner ear continue even after a sound has ended, perhaps serving as a kind of mechanical memory of recent sounds. In addition to contributing to the understanding of the complex process ...
Apr 05, 2011 |
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Soldiers screened for potential vulnerability to tinnitus
(PhysOrg.com) -- Hearing loss is common for soldiers coming home from deployments to Iraq and Afghanistan, but another perhaps equally vexing problem is a condition that causes them to hear sound that isn't ...
Medicine & Health / Medical research
Mar 29, 2011 |
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Early detection, intervention key to rehabilitating infant hearing loss
Delaying treatment may hinder speech and language development, University of Michigan audiologist cautions.
Medicine & Health / Diseases, Conditions, Syndromes
Mar 25, 2011 |
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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.
For more information about Hearing impairment, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
