Neural Pathway Missing In Tone-deaf People

Tuesday, August 18, 2009 - 23:14 in Biology & Nature

Nerve fibers that link perception and motor regions of the brain are disconnected in tone-deaf people, according to new research. Experts estimate that at least 10 percent of the population may be tone deaf -- unable to sing in tune. The new finding identifies a particular brain circuit that appears to be absent in these individuals.

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