Autism Spectrum Disorder (ASD) is a developmental disorder that involves impairments in social interaction and communication, challenges with sensory processing, and repetitive behaviors. The term "spectrum" reflects the fact that symptoms vary across different individuals, ranging in type and severity. ASD is an umbrella diagnosis in the DSM-5, replacing the four pervasive developmental disorders described in the previous edition — autistic disorder, Asperger's syndrome, childhood disintegrative disorder, and pervasive developmental disorder not otherwise specified. Individuals display ASD sy
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