Volatility is the degree to which events and situations change quickly.
Uncertainty is the degree to which outcomes of events are unknown or unpredictable.
Complexity is the degree to which events are situations are composed of many interconnected parts.
Ambiguity is the degree to which events and situations have unclear meanings.
Motor stereotypies are defined as involuntary rhythmic, repetitive, predictable movements that appear purposeful but serve no obvious adaptive function. Ego-syntonic. Earlier age of onset, prolonged duration, stops with distraction.
Tics commonly involve the eyes, face, head, and shoulders and are generally brief, rapid, random, and fluctuating. Ego-dystonic.
Tic Disorders
1. Provisional Tic Disorder
2. Persistent (Chronic) Motor or Vocal Tic
3. Tourette’s Disorder
Provisional Tic Disorder a tic is a sudden, rapid, recurrent, nonrhythmic motor movement or vocalizational. The tics have been present for less than 1 year since the first tic onset.
Persistent (Chronic) Motor or Vocal Tic is where single or multiple motor or vocal tics have been present during the illness, but not both motor and vocal. For more than a year tics have been present.
Tourette's disorder is when there has been at least one motor tic and at least one vocal tic during some period without an interruption of more than three months between the ages of 6 and 18 years. Multiple motor and/or vocal tics occur most days or nearly every day or sometimes daily for at least four weeks in the past 12 months.
Stereotypic Movement Disorder - repetitive, seemingly driven, and purposeless motor behavior.
The repetitive motor behavior interferes with social, academic, or other activities and may result in self-injury.