Autism spectrum disorder (ASD) is a condition related to brain development that impacts how a person perceives and socializes with others, causing problems in social interaction and communication. The disorder also includes limited and repetitive patterns of behavior. The term "Autism spectrum" in autism spectrum disorder refers to the wide range of symptoms and severity. (Autism Spectrum Disorder Treatment, Autism Spectrum Disorder Diagnosis, Autism Syndrome Symptoms Diagnosis, Autism and Autism Spectrum Disorder, ASD Diagnosis, ASD Symptoms, Mild ASD)
Symptoms of Autism (Autism Disease Symptoms)
Each child with autism spectrum disorder is likely to have a unique pattern of behavior and level of severity — from low functioning to high functioning (Signs of Mild Autism, Mild Autism Spectrum Disorder, Autism Disorders) Some children with autism spectrum disorder have difficulty learning, and some have signs of lower than normal intelligence. Other children with the disorder have normal to high intelligence — they learn quickly, yet have trouble communicating and applying what they know in everyday life and adjusting to social situations. Because of the unique mixture of symptoms in each child, severity can sometimes be difficult to determine. It's generally based on the level of impairments and how they impact the ability to function.
This is sometimes called “classic” autism. It is what most people think of when hearing the word “autism”. People with autistic disorder usually have significant language delays, social and communication challenges, and unusual behaviors and interests. Many people with autistic disorder also have intellectual disability.
People with Asperger syndrome usually have milder symptoms of autistic disorder. They might have social challenges and unusual behaviors and interests. However, they typically do not have problems with language or intellectual disability.
Pervasive Developmental Disorder – Not Otherwise Specified
This is sometimes called “atypical autism,” or PDD-NOS. People who meet some of the criteria for autistic disorder or Asperger syndrome, but not all, may be diagnosed with atypical autism. These people usually have fewer and milder symptoms than those with autistic disorder. The symptoms might cause only social and communication challenges.
Attention Deficit Hyperactivity Disorder (ADHD)
Attention deficit hyperactivity disorder (ADHD) is a mental disorder of the neurodevelopment type. It is characterized by difficulty paying attention, excessive activity and acting without regards to consequences.
Oppositional Deficient Disorder (ODD)
ODD is a condition in which a child displays an ongoing pattern of an angry or irritable mood, defiant or argumentative behavior, and vindictiveness toward people in authority. The child's behavior often disrupts the child's normal daily activities, including activities within the family and at school.