(From Meyers, 2001)
  1. About 90 percent of the human population is right handed
  2. The remaining 10 percent is left handed
  3. 95 percent of right handers process speech primarily in the left hemisphere
  4. About half of left handers process speech in the left hemsiphere
  5. About one quarter of left handers process speech primarily in the right hemisphere
  6. The remaining quarter use both hemispheres about equally

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