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What is a tic?
Dr Tabish Saifee, a Consultant Neurologist Queen Square, says a tic is a type of involuntary movement which can can be precipitated by a urge for such movements caused by a neurological condition.
Transcript
A tic is a type of an involuntary movement. It seems to be semi-purposeful, and it can happen to different parts of the body. It can also happen with...people can make vocal sounds with tics. They tend to have a funny urge coming before the onset of a tic, and it tends to be related to conditions coming from the brain.
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