Epilepsy and EEG

Epilepsy and EEG have been inextricably linked since the 1930s, when Frederick and Erna Gibbs discovered that epileptic events were visible in the EEG.  The evolution of other medical imaging in the 1970s and 1980s provided a better way to localize tumors, and the clinical use tapered off in areas other than epilepsy and encephalopathies.  Even with the multiplicity of other methods, the EEG remains the gold standard for identification of epilepsy.

In modern neuroscience centers, the EEG is still the tool of choice in evaluation of convulsive epilepsy, as well as some other non-convulsive forms, such as staring episodes seen in “absence epilepsy” typically as a 3/second spike and wave dominant anteriorly, or temporal lobe epilepsy, which is seen as a “notched” slow wave discharge fronto-temporally.

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First Direct Evidence of Neuroplastic Changes Following Brainwave Training

The scientific and academic press is now considering Neurofeedback as one of the ways neural plasticity can be induced/enhanced. The paper below shows the NF training changing the brain’s plasticity measurably within a single feedback session.

This may not surprise too many old-time NF practitioners, except that it is now being proven with well done studies in the traditional neuroscience literature!  Neurofeedback can induce changes in brain plasticity!

Jay

First Direct Evidence of Neuroplastic Changes Following Brainwave Training

ScienceDaily (Mar. 12, 2010) — Significant changes in brain plasticity have been observed following alpha brainwave training.

A pioneering collaboration between two laboratories from the University of London has provided the first evidence of neuroplastic changes occurring directly after natural brainwave training. Researchers from Goldsmiths and the Institute of Neurology have demonstrated that half an hour of voluntary control of brain rhythms is sufficient to induce a lasting shift in cortical excitability and intracortical function.

Remarkably, these after-effects are comparable in magnitude to those observed following interventions with artificial forms of brain stimulation involving magnetic or electrical pulses. The novel finding may have important implications for future non-pharmacological therapies of the brain and calls for a serious re-examination and stronger backing of research on neurofeedback, a technique which may be promising tool to modulate cerebral plasticity in a safe, painless, and natural way.

Continued at http://www.sciencedaily.com/releases/2010/03/100310114936.htm

Canucks work on secret mind room where they can be programmed to think happy thoughts

Is the Mind Room Helping the Vancouver Canucks run to the Stanley Cup?

An excellent story regarding the use of Neurofeedback in sports.  The Mind Room utilizes the Thought Technology Procomp Infiniti equipment. The follwing article from the Vancouver Sun gives us a bit of insight in to the 2011 Stanley Cup run of the Vancouver Canucks.

Canucks work on secret mind room where they can be programmed to think happy thoughts

In director Stanley Kubrick’s classic 1971 film A Clockwork Orange, a violent criminal named Alex DeLarge undergoes experimental aversion therapy as authorities try to psychologically reprogram him.

DeLarge, brilliantly played by Malcolm McDowell, has his eyelids clamped open and is forced to watch graphic nasty bits of ultra-violence on film while suffering drug-induced nausea all to the music of Beethoven. DeLarge quickly associates his suffering with violence and Beethoven’s Ninth Symphony and is cured. Completely disarmed psychologically, he returns to the community stripped of any coping skills and soon tries to kill himself.

Dr. Hal Myers, president of Thought Technology Ltd. hooked up to 'Mind Room', a physiological-psychological instrument that prepares athletes mentally to deal with nail-biting experiences.Dr. Hal Myers, president of Thought Technology Ltd. hooked up to ‘Mind Room’, a physiological-psychological instrument that prepares athletes mentally to deal with nail-biting experiences. -Montreal Gazette MindRoom technology worked for the Italian national team at soccer’s last World Cup and it could soon be working for the Vancouver Canucks.

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Derived Feedback Metrics such as Z-score Training

As the technologies advance and the software speed starts to allow derived measures to be used for feedback, the field is being offered many new tools for neurofeedback, including ICA based feedback, LORETA based feedback, and Z-score feedback.

All of these new tools will require clinical validation prior to being able to be considered standard techniques within our field’s armamentarium of efficacious techniques and clinical applications. All of these techniques offer great hope at this time with preliminary results, but careful clinical outcome studies remain to be performed.

In this brief note I will discuss Z-score feedback. This promising technique offers to set normative boundaries around the mean of many features of the EEG, and allow feedback to be controlled by these parameters. This obviously offers great hope to clinical outliers, as their Z-score divergence should be related to their pathology. One difficulty is that database Z-scores also show divergence when an adaptive or counter-balancing feature is used to cope with an abnormal finding. A crutch is not a normal finding, but you can’t walk without it if you have a broken leg.

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Neurofeedback Demonstrated on “The Doctors”

On this episode of the Doctors Dr Michael Linden helps “Noah” with his ADD. Part 1 of this story give a bit of information about what Noahs parents have been dealing with and the struggle they face with deciding whether or not to medicate their young child.

In Part 2 you see how Noah parents learn there are alternatives to Ritalin and other drugs that may be given to their child. Learn about how Neurofeedback and EEG Brain Mapping may be able to help without the use of dangerous pharmaceutical drugs.

Dr. Linden is a Clinical Psychologist and Nationally Certified in Neurofeedback and Biofeedback. He is the director of The Attention Learning Center, which has offices located in San Juan Capistrano, Irvine and Carlsbad, California.

Dr. Linden is a regular contributor to the Journal of Neurotherapy and has been a speaker in many seminars and conferences related to ADD/ADHD and neurotherapy.

Brain Power

This video was recently shown again on CBS 60 Minutes. It is a great video talking about using brain controlled interfaces.

Brain Power – Harnessing the Power of the Brain

August 9, 2009 4:35 PM

People who are completely paralyzed due to illness or trauma are getting help communicating with a new technology that connects their brains to a computer. Scott Pelley reports.

New research shows: Neurofeedback is an ‘Evidence-Based’ treatment for ADHD.

Nijmegen, July 16th 2009 – Neurofeedback – also called EEG Biofeedback – is a method used to train brain activity in order to normalize Brain function and treat psychiatric disorders. This treatment method has gained interest over the last 10 years, however the question whether this treatment should be regarded as an Evidence-Based treatment was unanswered until now. Tomorrow a study will be published in the scientific journal ‘EEG and Clinical Neuroscience’ demonstrating that Neurofeedback can indeed be regarded as an evidence-based treatment for Attention Deficit- / Hyperactivity Disorder (ADHD).

Neurofeedback is a treatment where real-time feedback is provided for specific brain activity (most often EEG) in order to learn the brain to suppress or produce specific brain activity. This method was initially discovered for the treatment of Epilepsy and from 1976 investigated further for the treatment of ADHD. This technique has become more popular by clinicians worldwide, and is currently provided for the treatment of several disorders. Critics have often questioned the efficacy of Neurofeedback and whether it can be considered an Evidence Based treatment or not.

In collaboration with researchers from Tübingen University (Germany), Radboud University (Nijmegen, the Netherlands), Brainclinics and EEG Resource Institute a so-called meta-analysis was conducted on all published research about Neurofeedback treatment in ADHD. This meta-analysis included 15 studies and 1194 ADHD patients. Based on this study – which will be published in the July issue of EEG and Clinical Neuroscience – it could be concluded that Neurofeedback can indeed be considered an Evidence-Based treatment for ADHD. The results show that neurofeedback treatment has large and clinically significant effects on Impulsivity and Inattention and a modest improvement of Hyperactivity.

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Dementia and Alzheimer’s Disease: LORETA findings

Thanks to Jay Gunkelman who made a very informative post on January 27 on this forum entitled Dementia and Alzheimer’s Disease. There he described the EEG patterns that we should expect and detect when evaluating for AD or other dementias.

I’d like to just throw out there a few other findings that were discovered in a few exploratory investigations while working on some studies with our colleague Alicia Townsend, at the time at Univ. of North Texas. Lexicor funded these projects and now the arrangements are such that I can’t disclose more than was published in the abstracts from our talks at ISNR and AAPB.  I did at least want to point to these very preliminary findings because theoretically they are in concert with your explanations.

First, we explored 10 participants between the ages of 65 and 85 were recruited at the University of North Texas Health Science Center.  Each was diagnosed by the Alzheimer’s Disease Assessment Scale and a medical interview.  The aim of the study was to identify current source density markers in AD.  EEG recording of the eyes closed condition of an AD group was compared to an age-sex matched control group using within-subject multiple t-test procedures. sLORETA difference maps in nine frequency bands were investigated. Interestingly the results showed that there was a significant increase in current source density in the delta and theta bands in the Brodmann Area (BA) 39 of the right temporal lobe and BA 31, the cingulate gyrus respectively.  Additionally there were decreases in alpha in the BA 21 of the right temporal lobe and right inferior parietal lobule (Sherlin, Townsend & Hall, 2006).

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Neurofeedback Foundation Award 2009

In his role as the Managing Director of the Foundation for Neurofeedback and
Applied Neuroscience
John Fisher recently announced the Foundation’s selection of a recipient of the Neurofeedback Foundation Award.

The Foundation gives an award to the author(s) of the publication which has
“contributed the most to furthering the field of neurofeedback” during the
past year. Past recipients have included Drs Rob Coben, John Gruzelier, as
well as Johan Levesque and Mario Beauregard.

This year the Foundation has chosen Professor Dr. Juri Kropotov as recipient
of this years award, based on his book and the body of work Juri has
contributed over the years.

This award selection was announced recently at the EEG Spectrum Clinical
Interchange Conference in Los Angeles.  The award includes a gorgeous plaque
as well as an honorarium.

We salute both the Foundation for helping promote the fiend of NF, as well
as all the award recipients for their publications and the substantial
contributions they all have given to our field.

Congressional Briefing on TBI for Wounded Soldiers

The Brain Injury Task Force offered its recommendations  to Congress today from a conference last fall, sponsored by the congressional task force on brain injuries.

The group suggested that an assessment tool be used in wartime to determine if a soldier should return to duty. It also recommended improvements to traumatic brain injury research,  identified the barriers to treatment and strategized on the improvements for continuum of care and more resources for families of troops with TBI. The Congressional Briefing was highlighted on front page of MSNBC in an article titled  “Better Brain Trauma Testing Urged for Troops”.