Today, we still don’t know the exact causes of ADHD, but studies suggest three main factor: genetics, environmental factors, or a disruption of development – like a brain injury.Ĭolloquially, there’s still widespread confusion about whether the condition is called ADD or ADHD. Further research revealed its basis in the brain, and a genetic link between family members. Attention deficit hyperactivity disorder (ADHD)ĪDHD was first considered a defect of moral control, then a result of brain damage.Attention deficit disorder: with and without hyperactivity (ADD).Incapacity of attending with a necessary degree of constancy to any one object.Through the years, the symptoms we now recognize as ADHD were referred to as: Others believe its symptoms were first recorded by Sir Alexander Crichton as early as 1798, and described in the children’s stories of Fidgety Phil written by Heinrich Hoffmann in 1844 1.ĪDHD’s exact origin is slightly unclear because the condition wasn’t always called attention deficit. Many authors say the history of ADHD dates back to the beginning of the 20 th century with Sir George Frederick Still’s articles and lectures. But its core symptoms – hyperactivity, impulsivity, and inattention – have been recognized together in a cluster for much longer. ADHD wasn’t formally recognized as a distinct medical condition by the American Psychiatric Association (APA) until the late 1960s.
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