The way humans experience music and speech differs from what was previously thought. This is the finding of a study conducted by researchers from Linköping University in Sweden and Oregon Health and Science University in the United States. The findings, which have recently been published in the jour
Science AdvancesWe are sociable beings. We value hearing other people’s voices, and we use our hearing to recognize and experience human speech and voices. Sound that enters the outer ear is transmitted by the eardrum to the spiral-shaped inner ear, also known as the cochlea. The cochlea is home to the outer and inner hair cells, which are the sensory cells of hearing.
“Our study shows that many cells in the inner ear react simultaneously to low-frequency sound. We believe that this makes it easier to experience low-frequency sounds than would otherwise be the case since the brain receives information from many sensory cells at the same time,” says Anders Fridberger, professor in the Department of Biomedical and Clinical Sciences at Linköping University.The scientists believe that this construction of our hearing system makes it more robust.
These results may eventually be significant for people with severe hearing impairments. The most successful treatment currently available in such cases is a cochlear implant, in which electrodes are placed into the cochlea.
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