Final answer:
Restricted repetitive behaviors in autism spectrum disorder include impaired social skills, repetitive motor behaviors, preoccupation with specific subjects, and strict adherence to certain rituals.
Step-by-step explanation:
A characteristic symptom of ASD is impaired social skills. Children with autism may have difficulty making and maintaining eye contact and reading social cues. They also may have problems feeling empathy for others.
Other symptoms of ASD include repetitive motor behaviors (such as rocking back and forth), preoccupation with specific subjects, strict adherence to certain rituals, and unusual language use.
Up to 30 percent of patients with ASD develop epilepsy, and patients with some forms of the disorder (like Fragile X) also have intellectual disability.