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Research finds music training 'tunes' human auditory system

A newly published study by Northwestern University researchers suggests that Mom was right when she insisted that you continue music lessons -- even after it was clear that a professional music career was not in your future.

The study, which will appear in the April issue of Nature Neuroscience, is the first to provide concrete evidence that playing a musical instrument significantly enhances the brainstem’s sensitivity to speech sounds. This finding has broad implications because it applies to sound encoding skills involved not only in music but also in language.

The findings indicate that experience with music at a young age in effect can "fine-tune" the brain's auditory system. "Increasing music experience appears to benefit all children -- whether musically exceptional or not -- in a wide range of learning activities," says Nina Kraus, director of Northwestern's Auditory Neuroscience Laboratory and senior author of the study.

"Our findings underscore the pervasive impact of musical training on neurological development. Yet music classes are often among the first to be cut when school budgets get tight. That's a mistake," says Kraus, Hugh Knowles Professor of Neurobiology and Physiology and professor of communication sciences and disorders.

"Our study is the first to ask whether enhancing the sound environment -- in this case with musical training -- will positively affect the way an individual encodes sound even at a level as basic as the brainstem," says Patrick Wong, primary author of "Musical Experience Shapes Human Brainstem Encoding of Linguistic Pitch Patterns." An old structure from an evolutionary standpoint, the brainstem once was thought to only play a passive role in auditory processing.

Using a novel experimental design, the researchers presented the Mandarin word "mi" to 20 adults as they watched a movie. Half had at least six years of musical instrument training starting before the age of 12. The othe
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Source:Northwestern University


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