Discovery Fit & Health
Doctors don't know exactly what causes Tourette syndrome. They do know that there's a genetic piece, but so far they haven't identified a specific "Tourette" gene.
Current thinking holds that abnormalities in the brain cause the motor and vocal tics that characterize Tourette syndrome. In addition, doctors believe this faulty wiring is in the frontal cortex, the thalamus and the basal ganglia regions of the brain. They are also studying whether irregular levels of the neurotransmitter dopamine could be involved. Dopamine regulates our emotions and movements.
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