Which findings on functional imaging studies are characteristic of Tourette syndrome (TS) and other tic disorders?

Updated: May 30, 2019
  • Author: William C Robertson, Jr, MD; Chief Editor: Stephen L Nelson, Jr, MD, PhD, FAACPDM, FAAN, FAAP  more...
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Answer

In general, the resting metabolic activity of the brain in TS appears to be normal. Studies using blood oxygen level–dependent fMRI comparing activity during a tic with brain activity when tics were absent suggest that tics are associated with activation of broad areas of the neocortex, some limbic areas, the striatum, and the thalamus.


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