Inferior colliculus receives processed sound outputs from the cerebral cortex & sends descending projections to the superior olivary complex. This processed signal determines descending signals activating the olivo cochlear efferent pathway to the cochlea selecting specific frequencies for audition while blocking others.

• Inferior colliculus receives processed sound outputs from the cerebral cortex & sends descending projections to the superior olivary complex. This processed signal determines descending signals activating the olivo cochlear efferent pathway to the cochlea selecting specific frequencies for audition while blocking others.