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Hearing loss problem, Asian old man with hand on ear gesture trying to listen shouting woman, Aging senior decline in hearing ability, Elderly health problems concept.

Surprise Finding About Human Hearing

It turns out, many cells send information to the brain, not just a few

Hearing loss may not be as certain as we think: For the past 100 years, we have believed that each sensory cell has its own “optimal frequency” (a measure of the number of sound waves per second). The hair cell responds most strongly to this frequency. This idea means that a sensory cell with an optimal frequency of 1000 Hz would respond much less strongly to sounds with a frequency slightly lower or higher. It has also been assumed that all parts of the cochlea work in the same way. Now, however, a research team has discovered that this is not the case for sensory cells that process sound with frequencies under 1000 Hz, considered to be low-frequency sound. The Read More ›