For most people, our ears work in tandem, delivering sounds as one "unit" to our brain. Even if the ears perceive slightly different pitches, our brain still can interpret it as the same source of sound.
Close to half a million people around the world suffer from a serious hearing impairment. In some cases, they can find relief with hearing aids, cochlear and other types of implants. Yet these devices do not help people whose inner ear is damaged or whose cochlear nerve does not function properly.
Chronic conductive hearing loss, which can result from middle-ear infections, has been linked to speech recognition deficits, according to the results of a new study, led by scientists at Massachusetts Eye and Ear and published September 6 in the journal Ear and Hearing.
One of the most common types of hearing loss is known as high-frequency hearing loss. This means high-pitch sounds are harder to hear. It can affect anyone of any age, but is common in older adults with age-related hearing loss, as well as people exposed to loud noises.
Ototoxicity is when a person develops hearing or balance problems due to a medicine. This can happen when someone is on a high dose of a drug that treats cancer, infections, or other illnesses.