A Monthly Summary of News and Events
Vol. 5 No. 5 - May 2002
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The opinions related in this newsletter reflect those of the author only.
Copyright (C) 2002 by EEG Spectrum International Intl, Inc. All rights reserved.
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We've seen it a hundred times before. A TV show, some movie, a bumbling criminal-type and his henchman are planning to break into a building or fancy house. The know-it-all suggests entry through a death-defyingly high window or a back door encased in electrified fencing. The camera stays with the mastermind as he wriggles through barbed wire and tight-walks over crazed, leaping pit bulls. When he finally succeeds at his elaborate break-in and sets down inside the darkened house, he is surprised by a tap on the shoulder. It is of course the henchman, already comfortably inside.
"How did you get in?!" the sweaty fool demands.
"The front door was unlocked."
So it may be with neurofeedback. While some clinicians try to work neurofeedback into the (health) system through the cracks, others find the front door ajar depending upon the disorder or problem (e.g., delinquency, recidivism) and parties involved.
SMR neurofeedback is a physiological anticonvulsant (as opposed to a chemical anticonvulsant). This was its first application, with more than 30 years of research to confirm it. Anticonvulsant therapy parallels neurofeedback in that it is applied to clinical conditions where EEG abnormalities are anticipated, such as autism, but also where they are not, such as in alcohol detoxification. Anticonvulsants are currently experiencing a prescription heyday across the entire psychiatric spectrum. I found 70 recent papers on anticonvulsants and autism, 700 paper for anticonvulsant therapy in alcoholism treatment, a 1,000 papers for various anxiety disorders, and nearly 3,000 papers for mood disorders. So this is fertile ground for an effective anticonvulsant, especially one that has few (if any) side effects.
I recently came across a door held extremely wide open for neurofeedback. Fetal Anticonvulsant Syndrome. This syndrome results from prenatal exposure to chemical anticonvulsants. About 1 in 10 children born to epileptic mothers undergoing anticonvulsant therapy acquire the syndrome and as many as 3 in 10 exhibit some of the symptoms. From my calculations, 3,000 children a year in America develop Fetal Anticonvulsant Syndrome and another 3,000 to 6,000 develop some of the milder symptoms. Symptoms range from minor anomalies, such as small nails, to major congenital abnormalities such as unusual facial features, spina bifida, developmental delays, even autism. Folic acid metabolism is apparently hindered in the fetus by exposure to commonly used anticonvulsants (carbamazepine, phenytoin, & sodium valproate). The syndrome derives from the medications themselves, not the maternal disorder (epilepsy) as frequency of malformations is two to three-fold above the background rate and is typically dose-related.
Given the dose-dependency, even a moderate reduction of anticonvulsant doses during pregnancy would be a significant contribution to the million of American women with epilepsy. Who knows? Perhaps neurotherapy might entirely replace chemical anticonvulsants in some. A reduction in patient side effects also goes hand in hand with dose reductions. The side effects of chemical anticonvulsants run from sedation and nausea all the way to infrequent toxicities. Common side effects include overgrowth of gum tissue, decreased coordination, abnormal eye movements, confusion, drowsiness, dizziness, headache and fatigue (depending on the medication). Not so common side effects include abnormal body hair growth, softening of bones, impaired consciousness, irregular heart rhythms, and liver toxicity. Compare this to common side effects of neurofeedback: improved attentiveness and impulse control....
Given the proven developmental neurotoxicity of anticonvulsants and the occasional adverse reactions to anticonvulsants (e.g., Anticonvulsant Hypersensitivity Syndrome), why neurofeedback isn't part of the standard epileptic treatment arsenal is beyond me. And from the insurance point of view, wouldn't it be in their interests to pay out for a few dozen sessions during pregnancy then pay for years of care under pediatric specialists.
This open door might seem a bit small, a bit obscure, but it is one possible entrance for mainstream acceptance. Ritalin was originally developed to treat a similarly obscure condition called narcolepsy, a sleeping disorder that affects less than 200,000 people (about the same lifetime prevalence of fetal anticonvulsant syndrome). From such humble beginnings....
News & Reviews
NEW BOOKS
Philosophy and the Neurosciences : A Reader
by William Bechtel, RS Stufflebeam, J. Mundale, Pete Mandik
The Adhd-Autism Connection: A Step Toward More Accurate Diagnoses and Effective Treatments
Brain Mapping: The Disorders
Bright Splinters of the Mind: A Personal Story of Research with Autistics Savant
Dysregulation of the right brain: a fundamental mechanism of traumatic attachment
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Early abuse impairs the developmental trajectory of the right brain, dominant for attachment, affect regulation, and stress modulation, making one vulnerable to PTSD symptomatology.
Psychiatric complications in patients with epilepsy: a review.
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Half of all epileptic patients develop psychiatric disturbances, particularly mood, anxiety, and psychotic disorders.
Depression and epilepsy: How closely related are they?
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Depressive disorders and epilepsy may share common pathogenic mechanisms that facilitate the occurrence of one in the presence of the other.
Clinical, Neuropsychological, and EEG Evidence for Mechanisms of Action of ECT.
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ECT may restore hemispheric equilibrium with enhancement of right brain functions and dampening of the left, as evidenced by post-ECT transient EEG slowing restricted to the left side.
Neurocognitive function in young children with autism spectrum disorder
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Autistic spectrum children performed similarly to comparison groups on all executive function tasks, indicating that at this early age, there is no autism-specific pattern of executive dysfunction.
Superior temporal gyrus volumes in maltreated children and adolescents with PTSD
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Maltreatment-related pediatric PTSD may produce developmental alterations in the superior temporal lobe.
Millisecond by millisecond, year by year: normative EEG microstates and developmental stages.
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Relying on an unproven model of microstates -- stable field topography of subsecond duration -- the authors describe a normative microstate database for resting EEG for children and adults.
Reduced volume of orbitofrontal cortex in major depression.
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Depressed patients have a 1/3rd smaller medial orbitofrontal cortical volume, without smaller volumes of other frontal regions.
Neuroimaging of childhood trauma.
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Functional neuroimaging studies suggest function and structure changes of medial prefrontal cortex and hippocampus in response to childhood sexual trauma and PTSD.
Brain maturation may be arrested in chronic cocaine addicts.
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Cocaine dependence may arrest normal white matter maturation in frontal and temporal lobes.
Magnetic resonance spectroscopy and its applications in psychiatry.
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Magnetic resonance spectroscopy, a non-invasive neuroimaging technique, reveals biochemical basis of many neuropsychiatric disorders, measures medication levels directly & tracks neurochemical changes in response to treatment, disease, or aging.
Neuroimaging findings in mild traumatic brain injury.
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Functional imaging techniques help clarify pathophysiology, symptom genesis, and mechanisms of recovery in TBI.
Upcoming Courses
Prerequisites:
All Adv. classes require successful completion of the 4 Day Comprehensive Beta/SMR.
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Conferences for Neurofeedback Clinicians & Researchers | ||
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| CONFERENCE | LOCATION | DATES |
| SNR - http://www.aapb.org | Scottsdale, AZ | Sep 12-15 |
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