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Unusual responses to sensory stimuli are more common and prominent in individuals with autism, and sensory abnormalities are commonly recognized as diagnostic criteria in autism spectrum disorder (ASD), as reported in the DSM-5; although there is no good evidence that sensory symptoms differentiate autism from other developmental disorders. [84]
Approximately 8 in 10 people with autism have a mental health problem in their lifetime, in comparison to 1 in 4 of the general population. [132] [133] [134] A 2019 meta-analysis found autistic people to be four times more likely to have depression than non-autistic people, with approximately 40% of autistic adults having depression. [135]
The scientific study of the causes of developmental disorders involves many theories. Some of the major differences between these theories involves whether environment disrupts normal development, if abnormalities are pre-determined, or if they are products of human evolutionary history which become disorders in modern environments (see evolutionary psychiatry). [5]
The MMR vaccine as a cause of autism is one of the most extensively debated hypotheses regarding the origins of autism. Andrew Wakefield et al. reported a study of 12 children who had autism and bowel symptoms, in some cases reportedly with onset after MMR. [192]
The CDC explains: “ASD begins before the age of three years and can last throughout a person’s life, although symptoms may improve over time. Some children show ASD symptoms within the first ...
Since feeding and eating disorders in children can cause dangerous risks to the child, it is important to seek treatment as soon as possible. Cognitive behavioral therapy can be incredibly beneficial to children with feeding or eating disorders. Family therapy is usually encouraged in order to keep all members involved in nourishing the child.
CDD is a rare condition, with only 1.7 cases per 100,000. [13] [14] [15]A child affected with childhood disintegrative disorder shows normal development. Up until this point, the child has developed normally in the areas of language skills, social skills, comprehension skills, and has maintained those skills for about two years.
Disability – may be physical, cognitive, mental, sensory, emotional, developmental or some combination of these. Developmental disability – a term used in the United States and Canada to describe lifelong disabilities attributable to mental or physical impairments, manifested prior to age 18. Disorder –