1. In Hidden Hearing Loss, M.
Charles Liberman reviews current knowledge about so-called temporary
hearing loss. Recent research has shown that even though the hearing
seems to return to normal, at least by conventional hearing tests, after
intense high level noise exposure, there is permanent nerve damage.
The so-called speech-in-noise tests, which measure the number of words
correctly identified as the level of a background noise increase, can
reveal the damage. He says there is a possibility of injecting nerve
growth promoters to regrow nerve fibers as for example in the case of
the victims of the Boston Marathon bombing which damaged the hearing
of more than 100 spectators. Scientific American Au15.
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