Autism - Wikipedia, the free encyclopedia

Repetitive Behavior :<br />
Stereotypy is repetitive movement, such as hand flapping, making sounds, head rolling, or body rocking.<br />
Compulsive behavior is intended and appears to follow rules, such as arranging objects in stacks or lines.<br />
Sameness is resistance to change; for example, insisting that the furniture not be moved or refusing to be interrupted.<br />
Ritualistic behavior involves an unvarying pattern of daily activities, such as an unchanging menu or a dressing ritual. This is closely associated with sameness and an independent validation has suggested combining the two factors.[35]<br />
Restricted behavior is limited in focus, interest, or activity, such as preoccupation with a single television program, toy, or game.<br />
Self-injury includes movements that injure or can injure the person, such as eye poking, skin picking, hand biting, and head banging.[4] A 2007 study reported that self-injury at some point affected about 30% of children with ASD.[28]