A study by Mass Eye and Ear associates tinnitus with undetected auditory nerve damage, challenging previous beliefs and opening new paths for treatment through auditory nerve regeneration. The study found that people with tinnitus have auditory nerve loss that is not picked up by conventional hearing tests. This discovery provides a better understanding of the origins of tinnitus and may lead to new treatments. The researchers aim to capitalize on recent work geared toward the regeneration of auditory nerve via the use of drugs called neurotrophins.