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Eighty percent of Americans over 50 say their primary care doctor hasn't asked about their hearing in the past two years, and nearly as many - 77% -- haven't had their hearing checked by a professional in that same time, according to a new national poll report.
They can hear well up to about forty years old, but then suddenly deafness strikes people with DFNA9. The cells of the inner ear can no longer reverse the damage caused by a genetic defect in their DNA. Researchers at Radboud university medical center have now developed a ''genetic patch'' for this type of hereditary deafness, with which they can eliminate the problems in the hearing cells. Further research in animals and humans is needed.
Neandertals -- the closest ancestor to modern humans -- possessed the ability to perceive and produce human speech, according to a new study published by an international multidisciplinary team of researchers including Binghamton University anthropology professor Rolf Quam and graduate student Alex Velez.
E-Mail IMAGE: Ear membrane and auditory nerve in the cochlea. The octave bands have been given different colours. Humans can perceive frequencies from 20 Hz (the top of the coil) to 20,000... view more Credit: Hao Li Peer review/Experimental study/Cells Researchers at Uppsala University have created the first 3D map of the hearing nerve showing where the various sound frequencies are captured. Using what is known as synchrotron X-ray imaging, they were able to trace the fine nerve threads and the vibrating auditory organ, the cochlea, and find out exactly how the frequencies of in...
E-Mail In the first few months of their lives, babies cry, babble, gurgle and make a variety of other peculiar sounds. It can be difficult to imagine that they are actually laying the foundations for later speech with these utterances. However, there is a determining element that proves that even their cries can be assigned to a particular language: the speech melody - or, more accurately: prosody. "Every language is characterised by specific musical elements, which we call prosody," says Kathleen Wermke. Prosody, in simple terms, is the combination of intonation (melody) and rhythm. Earlie...