Autism spectrum disorder is a neurodevelopmental condition affecting interactions with others, communication, behavior, and how people learn. It can be diagnosed at any age, but its symptoms often appear in the first couple years of life, potentially including social interaction difficulties and restricted or repetitive behaviors, interests, and actions.
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This exploration of ASD history walks through how autism science and diagnoses have evolved over the decades, including the new category in the DSM-4 in 1994 that created Asperger's disorder and pervasive developmental disorders, and the new, broader ASD definition in 2013 in the DSM-5 that has led to more diagnoses.
People with autism are now leading research on the effects of stigma and discrimination and promoting more studies on public services for autistic people. They also serve as editors, reviewers, and board members on autism academic journals, creating a new chapter in a field littered with painful stereotypes and prejudice.
The disorder has been increasingly diagnosed as its definition has grown broader and as clinicians have become more adept at identifying it—with some estimates suggesting the figures are much higher. These figures include people across the spectrum, some of whom live mostly independent lives, while others require life-long care and assistance.
That figure comes from an analysis published by the US Centers for Disease Control and Prevention based on data gathered on eight-year-olds in 2022. Its figures mark a significant increase from 2000, when the estimated autism figure was one in 150, but improvements in diagnosis and changes to the disease criteria that broadened the diagnostic criteria are widely believed to be driving that increase.
The disorder is strongly linked with inheritance, and research suggests that if one child has ASD, there's a one in 5 chance the next child will develop autism, which is seven times more likely than the general population.
Though researchers agree that there is a strong genetic component to ASD development, certain environmental factors heighten that risk, with studies suggesting older parents, premature birth, maternal obesity, and air pollution exposure in utero all elevate risks of ASD development. There is no connection between receiving vaccines and ASD development.
The controversial push was to create such orders without individuals' or their families' consent, underscoring modern-day prejudice against people on the spectrum.
Individual environment and life experiences affect how genes perform in the body, potentially adding methyl groups to DNA that affect their function and turning genes on and off—which may heighten or reduce disease risk.
This is one of Netflix's biggest shows, something this podcast says is due partly to the fact that the series both scratches the itch for people who enjoy reality dating viewing and the program is conducted in a nonexploitative, sensitive way that makes viewers truly want the best for the people navigating these situations.
This first-person account of a woman diagnosed with autism at age 31 covers her experience of why it was useful for her to receive her diagnosis as an adult and how it helped her to understand her life and her feelings of 'being an imposter.'
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