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Monthly Archives: March 2012


Biologists Locate Brain’s Processing Point for Acoustic Signals Essential to Human Communication

ScienceDaily (Mar. 8, 2012) — In both animals and humans, vocal signals used for communication contain a wide array of different sounds that are determined by the vibrational frequencies of vocal cords. For example, the pitch of someone’s voice, and how it changes as they are speaking, depends on a complex series of varying frequencies. […]

Discovery of Hair-Cell Roots Suggests the Brain Modulates Sound Sensitivity

ScienceDaily (Mar. 8, 2012) — 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. Their finding is […]