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This system currently only works with the Brainmaster system. Toomin style HEG with nIR.
Hershel Toomim Sc.D.
What is HEG?
HEG (hemoencephalography) is the study of blood flow in the brain. More specifically, it is the study of voluntarily controlled blood flow or oxygenation in specifically chosen brain modules.
Many major functions occupy clearly defined volumes. Some of these are well known. There is a module devoted to making sense of visual objects. The face fusiform area recognizes faces. It is located at the lower (inferior) part of the right temporal lobe over the right ear. The module used for working memory is usually located just above the left eye in the frontal (anterior) area of the left frontal lobe. There are obviously many more. Not all people have identical areas devoted to a particular function. Any particular function may call upon the primary module and several helpful modules to complete an operation. Location of these modules is a study in itself.
Blood brings oxygen and the basic nutrient, glucose, at life sustaining levels to all parts of the brain. Our brains have an amazing ability to supply extra blood preferentially to those modules in current use. Since even in repose the brain uses 1/5 of all the energy used in the body. It produces temperature rises in the used (venous) blood. If we used the entire brain at one time it would overheat and be severely damaged. The flow of blood cools the brain and prevents overheating.
Active modules are marked by high oxygen density and higher than normal temperature. Simple measurements can locate active modules. Note here that we have no sense that tells us where an active module is located. For example when we stand, activity occurs in the motor strip across the top of the head. We have no sensation with information about the exact location of that active bit of tissue.
From infancy on, we have learned to use specific bits of brain tissue for accomplishing familiar tasks. We carry out that the same learning process for anything new. We may want to do something we see others do or we try to do something that seems possible. Initially we accomplished it by trial and error. In trying, we find some modicum of success. We are encouraged so we try again and again. We improve as we go.
Fortunately, we can use a sophisticated infrared thermometer, passive infrared HEG (pirHEG), developed by my esteemed colleague, Jeffrey A. Carmen, or an optical probe, near infrared HEG (nirHEG) developed by the originator of HEG Hershel Toomim, that shines light through the skin and skull to assess the color of brain tissue. Oxygenated arterial blood is red, deoxygenated venous blood is blue. Increased demand for nutrition results in faster blood flow and redder blood in the tissues.
With these facts in mind we have an outstanding method, HEG, of doing Neurofeedback.
We place an optical or temperature probe on the desired position, display the tissue color or temperature in a form we can sense. With this indicator of success we can use our well developed previously described learning method to activate the chosen bit of cortical brain tissue.
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