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Home » Psychological Concepts - A » Attention-Deficit Hyperactivity Disorder
Attention-deficit hyperactivity disorder (ADHD) is one of the most commonly
diagnosed mental disorders among children, although it also occurs in
adults. The official definitions of ADHD according to the US Surgeon General
and ICD-9-CM (International Classification of Disease Revised Edition
2005) is a neurological deficit classified as "metabolic encephalopathy"
affecting the release and homeostasis of neurological chemicals and the
functioning of the limbic system.
The official definition of ADHD found in the American Psychiatric Association's
Diagnostic and Statistical Manual of Mental Disorders-IV (Text Revision)
(DSM-IV-TR), defines three subtypes of ADHD:
- Predominantly Inattentive
- Predominantly Hyperactive-Impulsive
- Combined Type
Although most diagnoses of ADHD are made for children, the DSM definitions
of ADHD do not confine the disorder solely to childhood and in fact many
adults are also diagnosed. Current theory holds that approximately 30%
of children diagnosed retain the disorder as adults. Although the disorder
may not have been diagnosed in an individual during childhood, it is also
currently thought that all adults with Adult attention-deficit disorder
(AADD) had it in childhood. Hyperactivity and other symptoms may be less
noticeable in adults with ADD/ADHD who have learned better coping skills
and other forms of adaptive behavior than they had as children. Particularly
in adults, studies have shown a high correlation between ADHD and creativity.
Many painters and performing artists seem to show significant evidence
of ADHD, particularly those drawn to improvisational humor and stand up
comedy (see Robin Williams, the poster child for adult ADHD).
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