Younger and older adults improved at similar rates from lower levels of noise—meaning that both groups benefited equally from better listening conditions. But older adults needed a head start: They needed lower levels of background noise to reach the same accuracy.
California Ground Squirrels’ Hearing Varies With Elevation
The squirrels’ improved ability to hear low frequency sounds is likely a sensory adaptation to life at high elevations, where weather and thin air can reduce how well sound travels. The study highlights how hearing and behavior can evolve together to help animals survive in challenging acoustic environments.
Limited Clinical Utility of Auditory Brainstem Responses for Detecting Tinnitus in Humans
Despite the small sample size and diverse tinnitus population, the present result suggests that the clinical utility of conventional ABR measurement is limited in detecting tinnitus in humans.