Persistence of stereotyped behavior: Examining the effects of external reinforcers.

Vitamin C decreased stereotyped behavior in a small 1993 study.

And they reappear even in everyday situations (thus, outside television, drama, and film) as stereotyped behavior.

Some show stereotyped behavior, rocking to and fro or repeatedly hitting themselves.

A popular explanation is stimming, which hypothesizes that a particular stereotyped behavior has a function related to sensory input.

When stereotyped behaviors cause significant impairment in functioning, an evaluation for stereotypic movement disorder is warranted.

A 1997 study found higher rates of social and communication deficits and stereotyped behaviors in families with multiple-incidence autism.

Autism's hallmarks are a delay in language development, an inability to relate to other people and stereotyped or rigid behavior.

This abnormal behaviour can represent 52-80% of all stereotyped behaviours.

Autism is a condition characterized by impairments in communication, social interaction, and stereotyped or repetitive behaviors.