This paper brings into clear question the commonly taught model of short and long distance connectivity which has been taught as a “cortical-cortical connectivity” issue, when many have pointed to the logical fallacy to this theory seen in the International Federation of Clinical Neurophysiology position paper (Basic Mechanisms of Cerebral Rhythmic Activities) on EEG generators, which showed that cutting cortical-cortical connections did not alter coherence (making the theory false).

I have presented this to the people in the field in an effort to correct the “cortical-cortical connectivity” theory – that has been promoted.

I hope the two compartmental cortical-cortical connectivity theory will fade away, especially as publications like this and the IFCN position paper point in a different direction.

Jay

More Reading: Control of Spatiotemporal Coherence of a Thalamic Oscillation by Corticothalamic Feedback Science 1 November 1996:Vol. 274 no. 5288 pp. 771-774 DOI: 10.1126/science.274.5288.771

Movement during brain scans may lead to spurious patterns from Simons Foundation Autism Research Initiative (SFARI)

HOUSTON – A Houston doctor is working on something that could help the many service members who return from the battle field suffering from post-traumatic-stress disorder.

By its own admission, The Veterans Administration has had little success treating people who are suffering from both traumatic brain injury and post traumatic stress disorder.

“They end up not having any cognitive strategies to manage the therapy, and they’ll either get out of therapy, or end their lives and that’s what’s happening,” said Dr. Ron Swatzyna, a psychotherapist, neuro-therapist, and biofeedback therapist for Houston’s Tarnow Center. “I’ve been working on this issue for about four years now.”

He said resetting the brain, lining it back up through stimulation, is the key.  And by mapping the brain, he believes he can tell when the patient is ready for therapy.

“Not at the beginning. If you push them too quick that’s a problem. If they are pushed into therapy too quick,” he said.

Swatzyna said the defense department and the VA both realize more research is needed, and if he can get funding, and cooperation from a group in the Texas Medical Center, he would like to open up a research center in Houston.

Vietnam veteran Billy Miller, who one of Swatzyna’s patients, is now helping him pull it off.

“Everyone I had been to before, all 25 doctors had never had military experience, they didn’t know what I was going through,” Miller said.

Swatzyna was a captain in the Air Force, and now many believe he is the best in the country at understanding veterans.

Army soldier Joel Brasier, who suffers from TBI and PTSD, believes Swatzyna is on the right track and is hoping research will lead to better, faster treatment.

“It’s an ongoing process, but eventually they are going to make a breakthrough and get us the help we need,” Brasier said.

Full story from khou.com

The reporter in this article likely had a TIA… a Transient Ischemic Attack… the temporary insufficiency of vascular flow dynamics to a cortical area providing insufficient local glucose and oxygen for function. This can happen from just flow dynamics due to vasoconstriction, such as seen in hyperventilation or gross over-arousal. This can also happen when blood consistency is not appropriate to allow flow, such as seen with hyperglycemia in diabetics when their blood sugar rises too high.

You may think “what does this have to do with EEG?”… well it is an important EEG area, and not without controversy.

The mid-temporal sharp-slow transients that are seen in EEG are considered neurologically non-specific, and many neurologists do not even comment on them. This is a mistake, as these nonspecific changes are a harbinger of vascular issues, including ischemia (as seen in migraine ischemia and the current discussion of TIAs), or vascular insufficiency, commonly in the vertebro-basillar artery and posterior vascular distributions supplying the hippo-campus (which has a huge metabolic demand load).

No less than Ernst Neidermayer chastises the neurologists doing EEG interpretations for under-reading of these findings. He clearly shows in his paper that these non-specific findings are important.

Recently I had a client who sent in the EEG of his wife, who had experience some word-finding and fluency issues, and it had these “nonspecific” temporal findings on the left… we suggested an MRA (magnetic resonance angiography), and though they had already done the MRI (which was normal), the MRA was done. The MRA showed a 9 millimeter AV malformation, and surgery was done to patch this area so it didn’t burst, saving her life.

These are the sort of waveform distortions that require an experienced EEG interpretation, and preferably an expert with Board qualification in EEG, not just someone licensed to read EEGs. These controversial findings make all the difference, and it is exactly these areas that provide the large difference between interpretation in studies looking at inter-reader visual EEG reliability.

Jay

ISNR invites you to their 18th Annual Conference for Health Professionals, Education Professionals, Researchers & Students. This conference offers workshops by the leading clinicians and researchers in the field of neuroscience. There will be many workshops and keynote talks on clinical as well as theoretical applications in the neuroscience field.

Letter from the Conference Chair:

It is with great pleasure that I welcome you to an ISNR conference for the third year as the conference chair. For this 18th Annual International Conference of the International Society for Neurofeedback and Research I am delighted to host you in Denver, Colorado, one of the few cities in history that was not built on a road, railroad, lake, navigable river or body of water when it was founded. It just happened to be where the first few flakes of gold were found in 1858. ISNR, like Denver, has grown from golden ideas and holds a bright and rich future.  With this spirit I invite you to join in a collective reflection on what our field has accomplished during these past 18 years, and on the scholarly challenges before us.

In addition to the parallel oral presentations, panel sessions, and workshops, here are a few highlights of the plenary sessions:

• Keynote Speaker- Norman Doidge, MD, NY Times best-selling author, will present “The Brain That Changes Itself: The Neuroplasticity Revolution and Film Clips of People Undergoing Plastic Change”
• Keynote Speaker- Alvaro Pascual-Leone, MD, PhD- “Multimodal Brain Imaging: Combining Brain Stimulation and Functional Neuroimaging to Understand A Changing Brain”
• Keynote Speaker- Jonathan Marks, MA, BCL- “Beyond Neurotherapy: The Ethics of National Security Neuroscience”

Invited Speakers:

• Dirk DeRidder, MD, PhD – “Alcohol Addiction: A Clinical Pathophysiological Approach”
• Matthew Nock, PhD – “Single-Case Experimental Design: A Valuable Method for Evaluating Neurofeedback in Clinical Practice”
• Hartmut Heinrich, PhD – “Theta / Beta and SCP Training in Children with Attention-Deficit/Hyperactivity Disorder: Behavioral and Neurophysiological Results from a Randomized Controlled Trial”
• Michael Schmidt, PhD – “Nutrient Modifiers of Neuroplasticity and Performance and the Exploration of Novel QEEG Assessment Metrics”
• Donald Cooper, PhD – “Single Cell Memory: How individual Neurons Route and Store Temporary Information to Maintain Attention”
• Paul Rapp, PhD – “Could Neurofeedback Reconstruct Synchronous Networks Lost Following Traumatic Brain Injury?”
• Jason Soss, MD- ” Neural Network Mapping”

As in our previous conferences, you can expect the opportunities to network with a diversity of colleagues from a variety of institutions. On Wednesday, there will the ISNR golf tournament with a portion of the proceeds going to the INSR Research Foundation. The tournament and Wednesday pre-conference workshops will be followed by an evening reception and our now traditional special panel Neurofeedback: The Past, Present and Future from the “Pioneering Women’s Perspective” featuring Genie Bodenhamer-Davis, PhD, Judith Lubar, MSW, and Lynda Thompson, PhD.

On Thursday evening, there will be a reception during the poster presentations and a first time evening plenary session. Our conference wouldn’t be complete without a Saturday evening presentation of honors, dinner and entertainment this year by Swing Essence, where attendees will enjoy conversation and dining with live jazz that you would expect in the finest clubs, featuring a jazz-inspired rhythm section, and accomplished instrumentalists.

During the past few years, the ISNR conference has achieved steady growth as evident from the support received from professionals, academia and industry. I would like to express sincere thanks to all the presenters and the members of the conference committee that has made this event a success. Also I would like to thank Deymed Diagnostic (Platinum), BrainMaster (Gold) and Nova Tech EEG, Thought Technology and Stens Corporation (Silver) for their sponsorship of the conference. Because of all of your efforts, the conference program is very rich with exciting papers and events.

Finally, I hope that you will find the presentations and discussions to be a valuable resource in your professional, research, and educational activities whether you are a student, academic, researcher, or a practicing professional. I encourage you to take part in this international conference, and I very much look forward to welcoming you personally to Denver in September!

Leslie Sherlin, PhD
2010 Conference Chair

A model of consciousness will be illustrated with physiological data from EEG and Event related potentials. Using millisecond level time resolution, a working model of the interaction between the mind and the brain will be constructed.

The Slow Cortical Potentials generated by Glial activity and the faster gamma activity reflecting activity of bound neural networks will be used to illustrate this model. The physiological correlates of concepts like intention, attention, memory, perception, awareness, sensory differentiation and conscious awareness will all be discussed within the framework of this model. Advanced concepts like neural network binding, nested rhythms, cross-spectral correlation, and the bispectrum will be discussed.

The DC potentials cause an instantaneous phase resetting and binding of a neural network, which can initiate synchronous activity within these neural networks. Current work using this model in clinical work on severe disorders of consciousness, including work by the International Brain Research Foundation on recovery of consciousness in coma cases will be reviewed. The simplest expression of the model: when the DC potentials reflecting activity of the mind interact with gamma activity reflecting neural activity in the brain, the emergent property of this interaction is consciousness.

Click here to view the embedded video.

From The Society for Scientific Exploration (SSE)

The two images below show the referential and sequential montage display of an active right temporal-parietal spike and slow wave focus, seen in a child clinically diagnosed with an attachment disorder. There was no history of convulsion, nor any suspicion of the actual underlying pathophysiological basis for the behavioral presentation.

The focus cortical area is normally involved in comprehension of facial expression and body language, as well as the prosodic (emotive) aspects of language. Any disturbance in that cortical area’s function generally has social contextual implications for behavior due to “prosodic blindness”. (see: Van Bloem, L. QEEG in Children with Reactive Attachment Disorder,

Journal of Neurotherapy, 4(4), 2001.

The implications for treatment option with this pathophysiological source for the behavioral presentation which could really only be discovered through the EEG are enormous. The use of an anticonvulsant or an approach with one of the proven efficacious applications of Neurofeedback in treating epilepsy can be used to target the underlying cause, rather than trying to effect some symptomatic control with antipsychotic or antidepressant medications so commonly used in these situations of severe attachment disorder. (see a review of SMR applied to epilepsy by Dr. M. Barry Sterman, Professor Emeritus, UCLA, from 2000 in Clinical Electroencephalography’s special edition on Neurofeedback)

In these images the referential focus is seen associated with the largest waveform, though in the sequential data the 180 degree phase reversal points to the focus.

EEG & Epilepsy - Referential Montage Display

EEG & Epilepsy - Sequential Montage Display

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.

The EEG can now be processed through algorithms, such as spike dipole localization software, to identify the “seizure focus” cortically, or spectral averaging to look for changes in the underlying EEG rhythmicity due to the disorder.

One of the difficulty with the two later categories is that they are not always identified as forms of epilepsy, and thus can be mis-diagnosed based on behavior alone as some other disorders, including ADD/ADHD in absence epilepsy “spells” where the attentional process is disturbed by the discharge taking segments of time out of the cognitive streaming of perception, or from discharge in sensory areas.  These segments being removed do not have any conscious awareness of the event for the person experiencing the blips missing from their cognitive process, and they will have trouble tracking on-going events, like driving or listening to a speech or lecture.  Imagine missing a few here and there, to tens of seconds from your awareness, and see if you don’t have “attentional deficits”.

The other major areas of misdiagnosis are of a “schizophrenic” or “psychotic” nature.  This occurs when the discharges are frontal or temporal and disturbing local cortical function, and may be seen as a range of presentations from hallucinations or emotional outbursts of rage, or even “fits of laughter” in “Gelastic seizures”.   Temporal Lobe Epilepsy (TLE) is a particularly difficult one to properly diagnose in the absence of the EEG.

The importance of these missed-diagnoses can be quite severe, with the use of medications to treat the symptoms often being contra-indicated by the epilepsy.  One example of this is TLE that is assumed to be psychosis, since antipsychotic medications lower the seizure threshold, and make the person worse, which can then be responded to with more antipsychotics, spiraling the person into a progressively worsened condition.  The use of stimulants in epilepsy is a controversial area, as the effect of stimulants for inattention in known and treated epileptics may be acceptable, though throwing a stimulant at an undiagnosed epileptic can have severe negative consequences.

The real issue is that IF YOU DO NOT LOOK, YOU WILL NOT SEE… and in epilepsy, looking requires the EEG, as the gold standard.

In surgical approaches, the EEG is used to identify whether there are multiple foci, which generally will preclude a good outcome (you remove the brain tissue and the seizures do not change).

I will post some images of the WIDE variety of morphologic presentation that epilepsy can take, so that some understanding of the task of the Electroencephalographer and Epileptologist can be better appreciated by those who think it is straight-forward.

Thanks for your attention to these obscure issues.

Jay

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

How can we live a fuller and healthier lifestyle as we get older? Perhaps keeping our body and brain engaged can help. That seems to be the case in Japan where the number of centegenarians is greater than 20,000.

THE ART OF AGING:THE LIMITLESS POTENTIAL OF THE BRAIN introduces a number of these “super-seniors” who lead healthy lives at nearly 100-years-old and, through them,searches for the “keys” to living a healthy and vital life regardless of age.

Click here to view the embedded video.