Tourette syndrome is a relatively common and complex neurobehavioral disorder characterized by motor and vocal (phonic) tics. Tics are abrupt, rapid, brief, repetitive behaviors that may resemble ...

During an interview with David Letterman for his Netflix series, "My Next Guest Needs No Introduction," singer Billie Eilish made a sudden movement, whipping her head around and opening her mouth.

While tics have been considered to result from an aberrant function of the brain's motor cortex, a Kobe University mouse ...

Motor tics are spasmodic contractions of muscles, which typically involve the face and are habitual. Examples include squinting the eyes, grimacing, or even turning the head. Sometimes motor tics ...

The diagnosis is based on the occurrence of tics along with behavioral disorders, including attention-deficit–hyperactivity disorder (ADHD) and obsessive–compulsive disorder (OCD). Other behavioral ...

Tourette syndrome is a relatively common and complex neurobehavioral disorder characterized by motor and vocal (phonic) tics. Tics are abrupt, rapid, brief, repetitive behaviors that may resemble ...