Posts Tagged ‘Norman Doidge’

What Constitutes Proof that Alzheimer’s or Dementia Could be Cured or Prevented?

January 4, 2017

Two excellent questions for consideration.  The first question, what constitutes a cure can be easily answered, that is the administration of operations or medications that would eliminate the affliction.  Currently, the only medications for Alzheimer’s do not cure the disease, but rather slow the progression.  One can question whether this prolongs meaningful or enjoyable life, or merely prolongs suffering.  This is a question for individuals to decide.
With respect to Alzheimer’s, there are many individuals who died with the defining features of the disease—neurofibrillary tangles and amyloid plaque, but who never exhibited any of the behavioral or cognitive characteristics of the disease.  Apparently there were many people who died not knowing that they had the disease.  So for these individuals, at least, the debilitating features of the disease had been prevented.  The only explanation that has been provided for this prevention is that they had built up a cognitive reserve during their lifetimes, by using their brains.  This is the justification for advocating growth mindsets.  But there are other factors such as being socially active, which also requires the use of one’s mind.

The only way of trying to determine the factors fostering prevention is through longitudinal studies.  There are two longitudinal investigation—the Religious Orders Study and the Rush Memory and Aging Project, which have enrolled more than 3200 older adults across the United States.  This studies are being led by David A. Bennet at the Rush Alzheimer’s  Disease Center in Chicago.  The volunteers enter these studies dementia-free, anywhere from their mid-50s to their 100’s and agree to hours of testing each year.  They all have agreed to undergo autopsies once they have died.  Here are the two primary findings that have emerged from these investigations.

Virtually all brains in old age contain some pathological signs of Alzheimer’s disease, but only some people suffer any symptoms as a result.  Those who do not develop dementia appear to have greater cognitive reserve to fall back on.

Choices we make throughout life, from learning a second language or studying music in childhood to finding purpose and remaining physical, intellectually, an socially active in retirement can build cognitive reserve and dramatically reduce the risk of dementia.

It is hoped that growth mindsets capture the general nature of intellectual activity.  Mindfulness and meditation foster greater control over one’s cognitive activity and lead to better control over one’s emotions and enhance personal interactions.  The healthy memory blog certainly endorses physical activity and a healthy lifestyle which includes, obviously, a healthy diet.

Regarding the defining characteristics of Alzheimer’s, the neurofibrillary tangles and amyloid plaque, seem to have little or no effect on individuals who have built up this cognitive reserve.  And there has been little success in the development of drugs to treat these physical symptoms.  One of the foremost experts in this area, Peter J. Whitehouse, M.D., Ph.D, who is the senior author of “The Myth of Alzheimer’s”  does not think that successful medications will ever be developed.

Perhaps one of the best resources on the extensive research that has been done in the area can be found in the book, “Nurturing the Older Brain and Mind” by Pamela M. Greenwood and Raja Parasuraman.

Dr. Michael Merzenich has been called “the father of brain plasticity,” and the co-founder of Scientific Learning and Posit Science.  You can go to brainhq.com
and find brain training exercises.  These exercises can be helpful, but by themselves cannot be regarded as providing a cognitive reserve.  Building a cognitive reserve requires a lifestyle devoted to cognitive and physical health.  Dr. Merzenich also has an interesting book, “Soft-Wired:  How the New Science of Brain Plasticity Can Change Your Life.”

Research reviewed by Norman Doidge, M.D.  has documented the extreme plasticity of the brain.  It is truly plastic in its ability to recover from severe injury.   His research is documented in two books,”The Brain that Changes Itself” and The Brain’s Way of Healing:  Remarkable Discoveries and Recoveries from the Frontiers of Neuroplasticity.”

HM would like to see extensive research done on individuals suffering from Alzheimer’s who apparently failed to build up this cognitive reserve.  What level of recovery might be achieved through exercises designed to recover lost capacity?  And at what level of dementia might individuals still be recoverable?  HM believes that money spent on this research would be more valuable that the extensive work that is being done on drug treatments that are likely to be doomed to failure.  Unfortunately, the money is in potential drug sales.

There have been many previous HM posts on these topics.  Enter “Bennet,”  “Whitehouse,”  “Parasuraman,”  “Merzenich,”  “Doidge,”  “The Relaxation Response Update,’ and  “Mindfulness” to find them.

© Douglas Griffith and healthymemory.wordpress.com, 2016. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Douglas Griffith and healthymemory.wordpress.com with appropriate and specific direction to the original content.

The Latest Discoveries in Neuroplasticity

April 26, 2015

These can be found in the book, The Brain’s Way of Healing:  Remarkable Discoveries and Recoveries from the Frontiers of Neuroplasticity by Norman Dodge, M.D.  This is the sequel to his earlier book, The Brain That Changes Itself. I am especially impressed as when I was a graduate student, there was no such thing as neuroplasticity.  Once damage was done to the nervous system, it could neither be treated nor repaired.  The nervous system was fixed and not amenable to change.  So The Brain That Changes Itself was eye opening and overwhelming.  The Brain’s Way of Healing does not disappoint.

Doidge is a Canadian psychiatrist who has received research funding from both the National Institute of Mental Health in the United States and the National Health Research and Development Program of Health Canada.  And obviously he is an accomplished writer who knows this topic intimately.  You can visit his webpage http://www.normandoidge.com.

He relates case histories, explains the underlying  science, and documents this research with references and notes in the back of the book.

The first chapter discusses a physician who specialized in the treating pain discovering how Chronic Pain can be unlearned.   He discovered this in learning how to cope with his personal chronic pain and then formulated a course of treatment using this method.

The next chapter presented the case history of a Parkinson’s sufferer who learned how to walk off his Parkinsonian symptoms.  This showed how physical exercise helps fend off degenerative disorders and can defer dementia.

The third chapter discusses the stages of neuroplastic healing explaining how and why it works.

Chapter four explains how the brain can be rewired with light by using light to reawaken dormant neural circuits.

Chapter 5 introduces us to Moshe FeldenKrais, a physicist who had a Black Belt in Judo and who developed a means of healing serious brain problems through mental awareness of movement.

Chapter 6 explains how a blind mind learned to see using the method of Feldenkraus, Buddhist and other Neuroplastic Methods.

The seventh Chapter discusses a strange device called the PoNS that stands for Portable Neuromodulation Simulator because when it stimulates the brain, it modifies and corrects how the neurons are firing.  It stimulates modulation to reverse symptoms.  It has been successful in treating traumatic Brain Injury, Parkinson’s, Stroke, and Multiple Sclerosis.

The eighth chapter discusses how sound can be used and the special connection between music and the brain.  It has been successful in treating dyslexia, autism, attention deficit, and sensory process disorder.s

There are three appendices.  The first presents a general approach to Traumatic Brain Injury (TBI) and brain problems.  The second appendix discusses matrix repatterning for  TBI that has been developed by Canadian clinical Dr. George Bush.  Appendix 3 discusses neurofeedback for Attention Deficit Disorder (ADD), Attention Deficit Hyperactive Disorder (ADHD), Anxiety, and TBI.

After reading all this, it is understandable that you might conclude that this is bunk, it is simply too outlandish.  Please accept my assurances that this is not the case, and that this is genuine research at the forefront of knowledge.  I hope the Veterans Hospitals are applying this research to veterans suffering from trauma.  And I would like to encourage sufferers of these maladies to read about these treatments.  However, I am reluctant to do so, because there is little information on where information can be found to pursue these treatments.  Perhaps if it were, the limited resources available would be overwhelmed.  It will take time for this research to trickle down with resultant treatment centers employing and furthering the research.