Tom Kenyon
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Auditory Stimulation and the Brain

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The brain PET scan facsimiles below indicate that language is processed primarily in the left hemisphere, while music is processed in the right hemisphere of the brain.

When music, sound and language are combined, as on ABR CDs, we are able to stimulate greater neurological activity in both brain hemispheres.

Glucose is the brain’s primary source of energy and an increase in glucose consumption indicates an increase in neurological activity. The reddish areas below show the areas of highest brain activity as measured by glucose consumption.

When the brain is exposed to language, the left hemisphere shows greater activity, while music stimulates the right hemisphere. When the brain hears music, sound and language combined, both hemispheres are activated.

Auditory Stimulation