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Restrictive and Repetitive Behavior
One of the hallmark features of an autism spectrum disorder is the presence of restrictive and repetitive behaviors (RRBs), interests, and activities.
Rett Syndrome
Rett Syndrome (RS) is a neurological disorder often misdiagnosed as autism, cerebral palsy or non-specified developmental delay. This disorder is caused by mutations in the MECP2 gene that disrupts its function. Although it has been primarily reported in females more males are being identified.