Mirror Movement Disorder Forces Limbs to Work in Tandem

Andree Marion's right hand not only knows what the left one is doing, it is forever mimicking its actions. When Marion, 47, brushes her teeth with her left hand, her right hand will automatically do an "air brush" impression. When she turns a door knob with her right hand, the left one will twist in kind. Because of a rare condition known as mirror dystonia, Marion's hands will perpetually act in tandem, but thanks to a University of Montreal study published Thursday in the journal Science,...Full Story
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