Quantitative Electroencephalography (qEEG): Information & Discussion
A technical guide by Jay Gunkelman, QEEG-D
General comments:
There is a generally reciprocal effect between alpha and beta, as brain stem stimulation desynchronizes the alpha generators, beta is seen. During states of under-arousal, this relationship is not seen, as when the subject is alerted, when both alpha and beta increase.
The point is that the arousal level [...]
The concern regarding the Mitsar amplifier expressed with so much vigor by those with competing interests has met the reality test of actual recorded data. The concern expressed was over a theoretical time skewing error due to the data sampling of an older version of the Mitsar amplifier.
I suggested at the [...]
Neurofeedback is an emerging neuroscience based clinical application, and understanding the underlying principles of neurofeedback allows the therapist to provide referrals or treatment, and provides clients with a framework for understanding the process. The brain’s electrical patterns are a form of behavior, modifiable through “operant conditioning,” with the excessive brain frequencies reduced, and those with [...]
Alpha… it’s not a simple idling rhythm… let’s look at alpha generators:
The thalamic involvement in the generation of the alpha rhythm is being under-valued when looking at the LORETA images of alpha current source generators. The alpha power may come from the sources that LORETA identifies, but the thalamus is intimately involved in alpha [...]
A collection of great videos on the brain from Vilayanur S. Ramachandran MD, PhD
The Boy with the Incredible Brain
This is the breathtaking story of Daniel Tammet. A twenty-something with extraordinary mental abilities, Daniel is one of the world’s few savants. He can do calculations to 100 decimal places in his head, and learn [...]
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 [...]
April 30, 2009
Leslie Sherlin, PhD
There recently has been some discussion regarding the use of low resolution brain electromagnetic tomography or LORETA, sLORETA and eLORETA. I felt compelled to make a few comments regarding this since there may be some confusion of how LORETA works and the usage of LORETA as an inverse solution specifically the [...]
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” [...]
Life offers us many teachers, and we generally only learn a small sliver of what they have to offer from the breadth and depth of their experience.
One such teacher was E. Roy John, who most knew as a brain researcher, though he had so much more to offer… did you know he was “blacklisted” [...]
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 [...]