Types of Attention Deficit Hyperactivity Disorder


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Types list: The list of types of Attention Deficit Hyperactivity Disorder mentioned in various sources includes:

  • Predominantly inattentive ADHD subtype
  • Predominantly hyperactive-impulsive ADHD subtype
  • Combined inattentive-hyperactive ADHD subtype

Types discussion: There are several types of ADHD: a predominantly inattentive subtype, a predominantly hyperactive-impulsive subtype, and a combined subtype. 1

NIMH grantees are also trying to determine if there are different varieties of attention deficit. With further study, researchers may find that ADHD actually covers a number of different disorders, each with its own cluster of symptoms and treatment requirements. For example, scientists are exploring whether there are any critical differences between children with ADHD who also have anxiety, depression, or conduct disorders and those who do not. Other researchers are studying slight physical differences that might distinguish one type of ADHD from another. If clusters of differences can be found, scientists can begin to distinguish the treatment each type needs. 2

Footnotes:
1. excerpt from NINDS Attention Deficit-Hyperactivity Disorder Information Page: NINDS
2. excerpt from Attention Deficit Hyperactivity Disorder: NIMH

Last revision: July 1, 2003

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