Daniel Amen

Amen's practices use single-photon emission computed tomography, or SPECT, scans of brain activity in an attempt to compare the activity of a person's brain to a known healthy model. Amen prescribes both medication and non-medicative courses of treatment, depending on the case. He also performs before-and-after SPECT scans, which claim to assess the effectiveness of treatment.[15] Amen's clinics claim to have the world's largest database of functional brain scans for neuropsychiatry.[14] As of 2009, Amen said he had scanned 50,000 people at an estimated cost of $170 million.[16]

John Seibyl of the Society of Nuclear Medicine and Molecular Imaging has stated that it is settled that SPECT is of no value for diagnosing psychological disorders.[17] A 2012 review by the American Psychiatric Association found that neuroimaging studies "have yet to impact significantly the diagnosis or treatment of individual patients."[18] The review also states that neuroimaging studies "do not provide sufficient specificity and sensitivity to accurately classify individual cases with respect to the presence of a psychiatric illness."[18] The American Psychiatric Association has concluded that "the available evidence does not support the use of brain imaging for clinical diagnosis or treatment of psychiatric disorders in children and adolescents."[19] According to cognitive neuroscience researcher Martha Farah and psychologist S. J. Gillihan, "[t]he lack of empirical validation has led to widespread condemnation of diagnostic SPECT as premature and unproven."[10]

Questions have been raised about the ethics of selling SPECT scans on the basis of unproven claims: neuroscience professor Martha Farah calls such use "profitable but unproven" and says: "Tens of thousands of individuals, many of them children, have been exposed to the radiation of two SPECT scans and paid thousands of dollars out of pocket (because insurers will not pay) against the advice of many experts".[7] Professor of psychology Irving Kirsch has said of Amen's theory: "Before you start promulgating this and marketing it and profiting from it, you should ethically be bound to demonstrate it scientifically in a peer-reviewed, respected journal" as otherwise "you're just going down the path of being a snake oil salesman".[1] In a 2011 paper the neuroscientist Anjan Chatterjee discussed example cases that were found on the Amen Clinic's website including a couple with marital difficulties and a child with impulsive aggression. The paper noted that the examples "violate the standard of care" because a normal clinical diagnosis would have been sufficient and that there "was no reason to obtain functional neuroimaging for diagnostic purposes in these cases."[16] Most patients do not realize that the SPECT scans rely on unproven claims.[6]

An initial session at one of Amen's clinics costs about $3,500.[1] As reported by The Washington Post in 2012, officials at major psychiatric and neuroscience associations and research centers see Amen's claims for the use of SPECT as "no more than myth and poppycock, buffaloing an unsuspecting public."[1]

One of Amen's clinics provides brain scans for current and former National Football League players.[11][20] Amen made the initial diagnosis of brain damage in NFL kicker Tom Dempsey.[3] During medical examinations and scans, Amen found three holes in Dempsey's brain, along with other damage.[3] He has also provided diagnosis and therapy for hockey player Paul Kariya, related to his concussion issues; Amen advised Kariya to retire as a professional, which he did.[3][11]

Amen's websites market vitamin supplements and a branded range of other dietary supplements.[8] These supplements have been promoted for a number of health benefits, including a claimed ability to prevent or stop Alzheimer's disease—there is however no known benefit from taking such supplements except for specific substance deficiencies.[21][22] Neurologist Robert Burton has written that he was "just appalled" by the things offered for sale on Amen's "big business" web sites,[8] and Harriet Hall has said that Amen prescribes "inadequately tested natural remedies" and "irrational mixtures of nutritional diet supplements" as part of his treatment.[23]

Amen's first book, Change Your Brain, Change Your Life, was published in 1999 and unexpectedly reached The New York Times best seller list after selling tens of thousands of copies in the first year. Publishers Weekly noted that the book "apparently struck a nerve with readers who love a 'scientific' hook."[24][25]

In his book Making a Good Brain Great, he provided his analysis and recommendations for brain improvement purported to enhance a person's overall happiness and ability. For example, he suggested that hobbies which challenge the brain are important to ensure a happy life, as he believes they force the brain to learn and evolve over time.[26] Davi Thornton characterized the book as consisting of "commonplace recommendations for self-improvement."[24]

Healing the Hardware of the Soul, written by Amen in 2008, was reviewed in the American Journal of Psychiatry by Andrew Leuchter. "Dr. Amen makes a good case for the use of brain imaging to explain and medicalize mental disorders," Leuchter said. "However, the reader who has any degree of familiarity with mental illness and brain science is left unconvinced that his [Amen's] highly commercialized use of scanning is justified." Leuchter concluded that Amen "has not subjected his treatment approaches to the level of systematic scientific scrutiny expected for scientifically based medical practice."[27]

In Amen's The Brain in Love, he described the brain activity that occurs during chanting meditation as similar to that which takes place during the feeling of love and sexual activity.[28]

In 2013, Amen co-authored with pastor Rick Warren The Daniel Plan: 40 Days to a Healthier Life, on "how to lead a healthy life".[29] Amen was one of the people— others included Mark Hyman and Mehmet Oz—that Warren recruited to help devise the program .[30] Warren encouraged adoption of the plan by all member churches in his network of Saddleback churches.[31] According to Janice Norris, "The Daniel Plan is ... more than a diet. It is a lifestyle program based on Biblical principles and five essential components: food, fitness, focus, faith, and friends."[32] Amen, Warren, and Hyman appeared on the television show The View to discuss the Daniel Plan, and 3,000 people came to a rally at Saddleback Church in Lake Forest, California, to hear the three talk about the plan.[33][34]

In 2013 Amen released an updated version of Healing ADD from the Inside Out: The Breakthrough Program That Allows You to See and Heal the Seven Types of Attention Deficit Disorder.[35]

In 2017 Amen and his wife Tana published The Brain Warrior's Way: Ignite Your Energy and Focus, Attack Illness and Aging, Transform Pain into Purpose, which Harriet Hall reviewed; she wrote: "Much of the advice in this book is mainstream medical advice, and there are helpful practical hints like putting your food on a smaller plate and not shopping for food when you are hungry. The problem is that the good advice is inextricably mixed with false information and misleading statements, and with detailed recommendations that are not supported by science."[9]

Amen has produced television programs about his theories. One of them, "Change Your Brain, Change Your Life," was aired by PBS affiliates 1,300 times in 2008 during fund-raising drives.[8] Another, "Magnificent Mind at Any Age with Dr. Daniel Amen," was aired before January 1, 2009.[21] Neurologist Michael Greicius, director of the Stanford Center for Memory Disorders and principal investigator of the Functional Imaging in Neuropsychiatric Disorders Laboratory at Stanford stated, "The PBS airing of Amen's program provides a stamp of scientific validity to work which has no scientific validity."[8][36] These programs have been described as infomercials for Amen's clinics. The program's depiction of the "wonders of ginkgo and other 'natural' products such as St. John's wort." was also criticized.[8][21] Alternative-medicine skeptic and physician Harriet A. Hall and neurologist Robert A. Burton criticized PBS for the airing of these programs.[8][23] Michael Getler, the PBS ombudsman, replied that "PBS had nothing to do with the 'Brain' program's content and did not vet the program in any way." Local PBS affiliates "make their own editorial decisions based on their own guidelines about what to air," he wrote.[23][37]