Related topics: hearing loss

Innovative hearing protection may protect military working dogs

Military working dogs played a vital role in the recent raid and death of ISIS leader Abu Bakr al-Baghdadi; however, temporary and permanent hearing loss due to high-decibel noise in training, transport and operations put ...

Study 'cures' oldest case of deafness in human evolution

An international team of researchers including faculty at Binghamton University, State University of New York, has published a new study examining a 430,000-year-old cranium of a human ancestor that was previously described ...

Did a common childhood illness take down the Neanderthals?

It is one of the great unsolved mysteries of anthropology. What killed off the Neanderthals, and why did Homo sapiens thrive even as Neanderthals withered to extinction? Was it some sort of plague specific only to Neanderthals? ...

Tracing the evolution of vision in fruit flies

The function of the visual photopigment rhodopsin and its action in the retina to facilitate vision is well understood. However, there remain questions about other biological functions of this family of proteins (opsins) ...

A space cocktail of science, bubbles and sounds

The International Space Station was again the stage for novel European science and routine operations during the first half of August. Plenty of action in the form of bubbles and sounds added to the mix in the run-up to a ...

Noisier waters linked to behaviour change, hearing loss in whales

Studies investigating whale-watching boats and the inner ears of marine mammals could soon provide new insight into the effects of noisier oceans on cetaceans – dolphins, whales and porpoises – who depend on their hearing ...

Artificial neural networks make life easier for hearing aid users

For people with hearing loss, it can very difficult to understand and separate voices in noisy environments. This problem may soon be history thanks to a new groundbreaking algorithm that is designed to recognise and separate ...

GN Hearing hopes to connect Android phones and hearing aids

Modern hearing aids run on digital technology and rechargeable batteries. They come in flashy hues like fashion accessories or can be miniaturized to disappear in the ear. They can communicate over Bluetooth, becoming tiny ...

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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