Asperger's and Tourettes

my 14 year old son has asperger's, ADHD, sensory processing disorder, and some anxiety. About 3 weeks ago he developed an eye tic. Sometimes his left eye only, sometimes both eyes. He has two first cousins with tourettes, one on each side of family. One also has autism. Is there any connection between Asperger's and Tourettes. By the way, he is not on any medicine.
thank you

[Richard B. Graff, PhD, BCBA-D]

I appreciate you taking the time to write and ask about your son.  Some researchers have suggested that the incidence of Tourette Syndrome in individuals with autism is higher than what would be expected by chance.  However, some tics are nearly identical to the stereotypic behaviors emitted by some individuals with autism, and thus it is difficult to know if these behaviors are tics or not.

If you have significant concerns, you might look to see if there is a Movement Disorders Clinic nearby.  These specialists may be able to determine if these behaviors are symptomatic of Tourrette's syndrome or not.

Best of luck with your son.