Tic disorder: It begins in childhood and adolescence and is characterized by involuntary repetitive, rapid one- or multi-site muscle motor twitches and vocal twitches, and may be accompanied by inattention, hyperactivity, obsessive-compulsive movements and thoughts, or other behavioral symptoms. Simple motor tics may include blinking, eyebrow squeezing, nasal aspiration, mouth opening, head shaking, and shoulder shrugging. Complex motor tics are slow, seemingly purposeful behavioral movements such as mimicry, molestation, etc. Simple vocal tics often consist of repeated animal-like grunting and humming, throat clearing, etc. The EEG may have a small number of epileptic waves and needs to be differentiated from myoclonic epilepsy, which is often associated with impaired consciousness, highly rhythmic abnormalities in the EEG, and seizures that can be controlled by antiepileptic drugs. In contrast, tics can be subject to volitional restraint for minutes to hours, and antiepileptic drugs are ineffective. Psychotherapy can be combined with medications such as haloperidol, Tebretol, risperidone, etc.