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Descending projections are found at every level of the auditory system, from the cortex to the cochlea. These pathways can regulate the sensitivity and selectivity of auditory neurons and have been implicated in a range of functions. It is likely that their principal role is to enable the brain to respond more effectively to particular sounds, depending on their behavioral significance or the sensory context in which they occur, and to adapt to changes in input.

Original publication





Book title

The Senses: A Comprehensive Reference: Volume 1-7, Second Edition

Publication Date





732 - 748