As of April 2015, Dr. Amen's attention-deficit/hyperactivity disorder typologies remain controversial, according to WebMD. While noninvasive technologies similar to what Dr. Amen uses for ADHD diagnoses are approved by the Food and Drug Administration, more research is needed to provide definitive proof for the physician's claims.
According to Dr. Amen, the most notable signs of ADHD are poor impulse control, impaired judgement, inability to plan ahead, a short attention span, procrastination, distractibility and disorganization, explains WebMD. Based on these symptoms and specialized brain imaging known as single-photon emission computerized tomography that checks for blood flow to specific areas of the brain, Dr. Amen splits ADHD sufferers into six categories.
Individuals with classic ADHD display impulsivity and hyperactivity along with the standard set of ADHD symptoms; Amen believes the condition responds well to stimulant medications, explains WebMD. Those suffering from inattentive ADHD show the usual signs of ADHD but are lethargic rather than hyperactive. Overfocused ADHD results in negative thoughts and behaviors in addition to the normal signs of ADHD; Dr. Amen's recommended treatment combines antidepressants and stimulants.
Individuals suffering from temporal lobe ADHD display the standard symptoms of ADHD; in addition, they are irritable, aggressive and have difficulty learning, explains WebMD. Sufferers of limbic ADHD display depression, lethargy and lack of motivation in addition to the usual symptoms of ADHD. The ring of fire ADHD causes symptoms that are a cross between ADHD and bipolar disorder; these include anger, aggressiveness and moodiness.