Autistics and Tics/Tourette's Syndrome

Tics, twitches, vocal tics, Tourette's Syndrome, stammers, stutters, ADHD, syncope, epilepsy, and ocd's have all long been noted as very much more common in autistics.

As many as 20% of people with Tics are thought to also be autistic - perhaps 7 times more likely therefore.  I think a fuller understanding of autism over time will mean that 20% figure goes much higher.

My thought is that any potential 'unifying theories' of how such differences might become associated with autism are dependant on much greater understanding of the strengths and weaknesses of certain brain architectures, and how the brain's processing mechanisms operate when stressed in certain ways by impacts - thoughts and senses.