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Old 14-05-2012, 05:16 AM   #1
Diane
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Default Book review: "The Graded Motor Imagery Handbook"

Book review: "The Graded Motor Imagery Handbook", posted today, (quoted here in full minus blogpost links and pictures, available in the actual blogpost above).

Quote:
With the release of The Graded Motor Imagery Handbook this spring, Noigroup (Neuro Orthopaedic Institute) takes itself, and by extension, the physiotherapy profession, out of “tissues”, past the foramen magnum, and into the brain, which provides (at least to this PT reviewer) a bridge across the Cartesian chasm that long ago divided the branch of the profession which considers itself “Neuro”, from the one that considers itself “Ortho”; this bridge is built from fifteen years of deep Noigroup marination in neuro and pain science and education.

It’s a team effort, coauthored by G. Lorimer Moseley, David S. Butler, Timothy B. Beames, and Thomas J Giles; it manages to deliver complex material with whimsy and friendliness. The book’s size, shape, font, flat spiral binding, colourful chapter and page layout, and artwork, engage the reader, and make the content seem much less daunting to study and learn. In a mere 143 pages, The GMI Handbook ambitiously (and successfully) tackles multiply-leveled objectives:
1. Introduce and explain the entire topic to clinicians and patients;
2. Explain why the topic deserves attention, understanding, and implementation by clinicians and patients;
3. Provide a conceptual trail;
4. Provide products, services and support to clinicians and patients to implement the program.

We are given an introductory tour of the book by Butler, who, as an adult educator as well as a longtime PT, speaking to both practitioners and patients, admits this is new territory for PT; although the navigating map may still lack fine detail, he is confident that clinical reasoning should suffice to keep us on track, and his enthusiasm for exploring and charting this new frontier is contagious.

Patients who have persistent, non-medical pain, he explains, need to “exercise their synapses,” lubricate them with knowledge, first; then, subsequently, moving their physicality may feel easier. All behaviours occur within a given context, defined as “the temporary environment of an action or planned action”:
“Knowledge is a very special context. It can be de-threatening, give meaning to your symptoms, provide explanations, help with compliance, allow problem-solving, link to future goals, allow progression of treatment and it can be passed on to other people like a useful virus.” - [p. 7]
Knowledge can be superficial or deep; a new idea will challenge many old ideas, may jostle them aside somewhat. A learner (such as a person with persistent pain) who is prepared for this, will be able to entertain options for moving old beliefs aside, permit new information to enter safely and deeply into his or her own brain, so that it can help change the overall synaptic structure of the brain itself - the ultimate goal is to provide one’s brain with new options based on new information, so that it may eventually change its pain production and pain perception.

The second chapter by Moseley lays out the map of this new territory in as much detail as the book allows for. He recounts his personal journey toward this frontier, reading Ramachandran, meeting Butler, becoming interested in mirror therapy. He explains ‘neurotags’, defines them as, “a network of interconnected neurons..distributed throughout the brain. When a neurotag is activated it produces an output. The output defines the neurotag” [- p 24].

The neurotag is not the bread you smell: it does not produce the odour itself, does not detect it. The neurotag is not the neck pain you feel: it does not produce the neck pain, nor does it detect it. The neurotag is the experience of smelling the bread, the experience of feeling the neck pain. In other words, it is not primary sensation - it’s a kind of “learning” that has occurred by natural synaptic connection. A neurotag will activate when a threshold is reached, and when its member brain cells fire in concert, with no non-member cells firing at the same time. A ‘sensitized’ neurotag for experiencing pain is conceptualized as one whose activation threshold is too low, and whose nearby non-member neurons are too inactive, and therefore don’t or can’t contribute to inhibition.
For most people with pain, actual movement hurts. Without practice, parts of the brain that produce movement have become underused, and their synaptic strength has started to degrade. Primate brains are visually dominant. Humans are primates. Therefore, visual systems are recruited to assist - hence the term, graded motor imagery.

“Explicit” graded motor imagery is imagining yourself moving a body part. In the third chapter by Tim Beames, it is defined as a “process in which you are aware of yourself thinking about what you are doing” [-p. 79]. Through careful data collection, the researchers found out that this could still activate pain neurotags in some people (ouch, not good.) This means, for some people, even just imagining a movement can make their pain feel worse.

So the researchers proposed, and found, a way to get around that: “IMPLICIT” graded motor imagery is a delightfully sneaky process whereby movement-producing parts of the brain can be helped to rehabilitate, their neurons can be excited, but without activating any “pain” neurotags in the process!

The first stage is to help the brain relearn how to make left and right judgements about body physicality, both position of part itself, and various positions of various parts in space. Implicit motor imagery, or right/left judgment, activates pre-motor areas of the brain, which can then excite motor cells, but doesn’t directly activate them. The hypothesis is, that exposure to and engagement with implicit motor imagery can thereby sneak some learning in under the sensory-motor radar, so to speak, help the brain build the synaptic strength needed to undermine, inhibit and dampen the pain neurotag, because it can secondarily excite the motor area without activating either it or its connected pain neurotag! The brain will gradually and naturally tilt toward greater efficiency, especially if it thinks changing is its own idea, that the change is coming from within instead of from without.

All of this sheds fascinating light on the “locus of control” aspect of brain function. It is a clever set-up indeed that can move locus of control around, and back and forth, right inside a brain!

Moseley has taken Melzack’s neuromatrix model of body-self a step further in his work, introducing the idea of a cortical body matrix, which integrates not just maps of the body, but also its surveillance, proprioception, regulation and protection, and not only the body - but also its surrounding space as well! The ‘cortical body matrix’ comprises a ‘network of networks’ - it includes “the suite of body systems that can be disrupted in a range of neurological and psychiatric conditions, including chronic pathological pain” [- p. 35]. He says that bias away from the “painful” side of the body includes a bias away from the space occupied by that part, as well; i.e., the brain prioritizes ‘away’ from the “painful” space. Delayed response time judging one side compared to the other led to this idea. Why the brain does this is as yet unknown; Moseley suspects the brain’s body-space maps may be disrupted somehow, although he isn’t fully committed to that idea quite yet.

Patients who embark on a course of implicit motor imagery training are counselled to enjoy the journey, not rush toward the destination - they are asked to develop and engage patience, persistence, courage and commitment. Possible pitfalls and obstacles are mentioned in the book, plausible explanations put forward.

The main tools for implicit motor imagery training are sets of cards depicting body regions and parts in various positions. The term “vanilla image” appears without warning on p. 45, without definition. (One must wait until chapter 5, p. 134, to learn from Tom Giles that “vanilla” refers to a “basic” image, on plain coloured background, without context, but one in which the body part has been randomly rotated 90, 180, and 270 degrees.) The patient is started with “basic” (unrotated, plain background) images, then “vanilla” images, and eventually moves to images of body parts inside a given context, i.e., how they might appear in magazines etc. The task is to decide as fast as possible, based on a quick glance only, if one is looking at a right or left side, or hand, or foot, etc. Scores improve over time as the brain’s synapses find each other after repeated exposure, and start to hook up.

The third chapter by Tim Beames is a “nuts&bolts” description of the implementation of the program, outlining several how-tos, and what-ifs. Explicit motor imagery is a way of practicing a motor skill or activity which engages the brain parts involved, including the motor cortex, but without actually physically performing the motor actions - exercising the “virtual” body but not the physical one. The inner regulation control systems don’t really know the difference though - heart rate may respond to the imagined movement by increasing, for example. Patients graduate to this, and to mirror therapy, which involves the actual motor cortex to produce real movement, once they have successfully navigated implicit motor imagery, and have improved their right-left judgement scores. Graded exposure and pacing tips are woven throughout. Case studies are described. The goal is not just pain relief - the goal is to help the patient’s brain regain flexibility and creativity!

Butler returns in Chapter 4 to discuss stories, images and metaphors that can help move the process along.

In Chapter 5, Tom Giles explains how to set up a “Recognize” program on the computer or as a mobile app., essential aid to clinicians who want to integrate this whole system into a busy practice, or to patients who need to access it any time of the day or night.

I think prior exposure to neuroanatomy would be helpful, so I am including in this review an image I like very much from Mayo Clinic Medical Neurosciences 5th edition, depicting how inputs funnel themselves within the brain, from afferent sensory systems to output systems, premotor, and motor cortex.

I would have appreciated having “vanilla image” explained earlier in the The GMI Handbook, or appear in the index, but I can also understand how individuals in a group, working feverishly on a project, may understand perfectly well what each other means and completely overlook the fact that no one outside the group may know what they mean by a certain word. (That is really my only negative criticism, and it’s a pretty small one!)

Overall this book is a pleasure to look at, handle, read, and use. It represents expansion of the profession beyond its ordinary knowledge base, providing hope to all clinicians who may be dissatisfied with the tools we were taught based on information that is no longer relevant, and to patients who want their practitioners to learn something new that might help them recover their own neural and movement capacities, and hopefully help their brains unlearn pain!
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"Rene Descartes was very very smart, but as it turned out, he was wrong." ~Lorimer Moseley

“Comment is free, but the facts are sacred.” ~Charles Prestwich Scott, nephew of founder and editor (1872-1929) of The Guardian , in a 1921 Centenary editorial

“If you make people think they're thinking, they'll love you, but if you really make them think, they'll hate you." ~Don Marquis

"In times of change, learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists" ~Roland Barth

"Doubt is not a pleasant mental state, but certainty is a ridiculous one."~Voltaire
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Old 14-05-2012, 10:50 AM   #2
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Do you use, or could you see yourself using this in the future Diane?
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Old 14-05-2012, 02:34 PM   #3
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If I were just starting out in life, in this profession, I would. I think the whole thing is that clever.
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"Rene Descartes was very very smart, but as it turned out, he was wrong." ~Lorimer Moseley

“Comment is free, but the facts are sacred.” ~Charles Prestwich Scott, nephew of founder and editor (1872-1929) of The Guardian , in a 1921 Centenary editorial

“If you make people think they're thinking, they'll love you, but if you really make them think, they'll hate you." ~Don Marquis

"In times of change, learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists" ~Roland Barth

"Doubt is not a pleasant mental state, but certainty is a ridiculous one."~Voltaire
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Old 20-05-2012, 08:09 PM   #4
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I am not that knowledgeable about feldenkrais theory but I do recall an aspect of it in which there was a movement employed on one side of the body and the. Visualized in great detail for the second side, some results reported that the learning on the visualized side was greatly improved. anyone remember that or have anything to clarify it for me?
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Old 20-05-2012, 08:38 PM   #5
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I don't know for sure but I can't see why it wouldn't be plausible. I found this recently, about mirror synaesthesia.
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"Rene Descartes was very very smart, but as it turned out, he was wrong." ~Lorimer Moseley

“Comment is free, but the facts are sacred.” ~Charles Prestwich Scott, nephew of founder and editor (1872-1929) of The Guardian , in a 1921 Centenary editorial

“If you make people think they're thinking, they'll love you, but if you really make them think, they'll hate you." ~Don Marquis

"In times of change, learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists" ~Roland Barth

"Doubt is not a pleasant mental state, but certainty is a ridiculous one."~Voltaire
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Old 20-05-2012, 10:31 PM   #6
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I see BIM have linked your review of the book on their home page Diane!

regards

ANdy
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Old 20-05-2012, 10:47 PM   #7
Diane
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Yes, I noticed that.
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www.dermoneuromodulation.com
SensibleSolutionsPhysiotherapy
HumanAntiGravitySuit blog
Neurotonics PT Teamblog
Canadian Physiotherapy Pain Science Division (Archived newsletters, paincasts)
Canadian Physiotherapy Association Pain Science Division Facebook page
@PainPhysiosCan
WCPT PhysiotherapyPainNetwork on Facebook
@WCPTPTPN
Neuroscience and Pain Science for Manual PTs Facebook page

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"Rene Descartes was very very smart, but as it turned out, he was wrong." ~Lorimer Moseley

“Comment is free, but the facts are sacred.” ~Charles Prestwich Scott, nephew of founder and editor (1872-1929) of The Guardian , in a 1921 Centenary editorial

“If you make people think they're thinking, they'll love you, but if you really make them think, they'll hate you." ~Don Marquis

"In times of change, learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists" ~Roland Barth

"Doubt is not a pleasant mental state, but certainty is a ridiculous one."~Voltaire
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