when did psychologist first discover adhd
During the 1970s, doctors narrowed ADHD down to three types: primarily inattentive, primarily hyperactive-impulsive, and combined type. ADHD was known as ADD (attention deficit disorder) for quite some time. In 1994, the H was added to the name.Experts changed the name because hyperactivity was such a significant and common symptom of the condition.uring the 1970s, doctors narrowed ADHD down to three types: primarily inattentive, primarily hyperactive-impulsive, and combined type. ADHD was known as ADD (attention deficit disorder) for quite some time. In 1994, the H was added to the name.