Discovery of Hair Cell Roots Suggests the Brain Modulates Sound Sensitivity

The hair cells of the inner ear have a previously unknown “root”
extension that may allow them to communicate with nerve cells and the
brain to regulate sensitivity to sound vibrations and head position,
researchers at the University of Illinois at Chicago College of Medicine
have discovered.

Link: http://www.sciencedaily.com/releases/2012/03/120308174651.htm