Pervasive Developmental Disorder…?
What is it??? What are the causes? What does it do? How to get rid of it if you can……
Pervasive developmental disorders cause abnormal development, including social and communication development. The symptoms appear early on – by the age of 3 at least, except in one of the disorders – and last throughout the lifetime. There are five of them: autism, Asperger’s syndrome, childhood disintegrative disorder, Rett syndrome, and pervasive developmental disorder not otherwise specified (PDD-NOS). Autism, Asperger’s, and PDD-NOS are called the autism spectrum.
Symptoms of autism include difficulty socializing and communicating with others, delayed speech, lack of eye contact, difficulty interpreting nonverbal signals, intense fixations and interests, repetitive or compulsive movements, poor motor coordination, and abnormal sensory processing. The severity of these symptoms varies considerably. Asperger’s syndrome is a mild and high-functioning form of autism. The symptoms are the same except there is no speech delay. PDD-NOS is when someone has some autistic traits and significant impairment, but does not meet the diagnostic criteria for another PDD. These disorders have a genetic basis, but researchers have not yet uncovered the specifics. Some people believe environmental factors also play a role.
Childhood disintegrative disorder is when a child appears to be developing normally, then suddenly regresses sometime after the age of 3. The cause of this disorder is unknown. Rett syndrome occurrs almost exclusively in females. Infants with this disorder experience regression between 6-18 months of age. Symptoms include lack of speech, seizures, sensory problems, poor motor coordination, growth abnormalities, and repetitive movements. It is caused by a gene mutation on the X chromosome.
None of the PDDs are curable. There are many treatments available, including occupational therapy, cognitive behavioral therapy, applied behavior analysis, speech therapy, social skills training, behavior therapy, and certain medications.
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