Oliver Sacks, the famous neurologist & writer, famously wrote about “Witty-Ticcy Ray” – a surgeon with Tourette syndrome. Not an uncommon neurological syndrome in children, tics are characterised by sharp involuntary movements and vocalisations.
Tics are irregular, uncontrollable, unwanted, and repetitive movements of muscles that can occur in any part of the body. Movements of the limbs and other body parts are known as motor tics. Involuntary repetitive sounds, such as grunting, sniffing, or throat clearing, are called vocal tics.