QEEG (Quantitative EEG) is a computer-based analysis of the Brain’s electrical activity. While standard EEG records brainwaves, QEEG examines this data in detail and compares it to a database of healthy brains to identify statistically abnormal patterns.
These patterns often correspond to symptoms seen in conditions such as anxiety, depression, PTSD or migraine. The results are displayed as easy-to-read brain maps, highlighting areas of under- or overactivity. This information helps guide targeted neurofeedback training by identifying how brain function differs from typical patterns.
Key Points
• QEEG = statistical analysis of EEG brainwave data
• Identifies abnormal patterns of Brain activity
• Compares results to a normative database
• Produces colour-coded Brain maps for interpretation
• Helps link Brain activity patterns to symptoms
• Essential for targeted neurofeedback training
QEEG, or Quantitative Electroencephalography,is a statistical analysis of the electrical Brain activity that underlies all our Experiences, Behaviours and Abilities.
QEEG helps to identify faulty or abnormal Brain activity which is the source of Functional Brain Disorders like Anxiety, Depression, PTSD, Migraine and the like.
[Hi, I’m Martin from BODY MIND & BRAIN]
Let’s talk about Brain scans: As beautifully as an MRI scan depicts the Brain’s anatomy, it cannot capture the Brain’s electrical activity. In fact, MRI scans cannot even determine whether a Brain is awake, asleep or recently deceased.
In contrast, EEG — Electroencephalography — can eavesdrop on the Brain’s electrical chatter through the skull without drilling holes. For that, we fit a net of buttons on our clients’ head, each housing a conductive electrode, capable of picking up the Brain’s activity in microVolt.
As the name indicates, an electronic amplifier then boosts and digitises the faint signal so that the special software in a computer can display the readings on the monitor.
In Medicine, trained Neurologists can now look at the squiggly EEG traces and search for those waveforms that indicate certain medical problems like Epilepsy, Encephalitis or toxic and metabolic Encephalopathies.
In contrast, QEEG analyses all the embedded information. For that, it transforms the digital data into many meaningful metrics: For example, how much electrical power the Brains expends at varying speeds, measured as frequency, at each of the 19 electrode locations.
In the next step, all these numbers are compared to a normative database of healthy Brains which tells us how statistically abnormal each value is.
From that, we generate the colour-coded graphs known as Brain maps, which are now easy to understand: Green indicates normal levels of activity, yellow means too much, orange means way too much and red means crazy too much.
In most cases, the abnormal activity is consistent with and explains the reported symptoms. But wait, there’s more: Smart scientists have figured out how to precisely estimate where inside the Brain certain activity components come from, although the electrodes are on the outside of the skull. Isn’t that crazy? It’s called LoRETA which stands for Low Resolution Electromagnetic Tomography. You can think of it as 3-dimensional EEG.
Now, there are many more analyses that help us identify faulty Brain activity, which is indispensable for targeted Neurotherapy; but I reckon you’ve seen enough to get the gist. Thanks for watching, cheers.
QEEG, or Quantitative Electroencephalography, is a statistical analysis of the electrical Brain activity that underlies all our Experiences, Behaviours and Abilities.
QEEG helps to identify faulty or abnormal Brain activity which is the source of Functional Brain Disorders like Anxiety, Depression, PTSD, Migraine and the like.
As beautifully as an MRI scan depicts the Brain’s Anatomy, it cannot capture the Brain’s electrical activity. In fact, MRI scans cannot even determine whether a Brain is awake, asleep or recently deceased.
In contrast, EEG — Electroencephalography — can eavesdrop on the Brain’s electrical chatter through the skull without drilling holes.
For that, we fit a net of buttons on our clients’ head, each housing a conductive electrode, capable of picking up the Brain’s activity in microVolt. One microVolt is one millionth of one Volt.
As the name indicates, an electronic amplifier then boosts and digitises the faint signal so that the special software in a computer can display the readings on the monitor.
In Medicine, trained Neurologists can now look at the squiggly EEG traces and search for those waveforms that indicate certain medical problems like Epilepsy, Encephalitis or toxic and metabolic Encephalopathies.
In contrast, QEEG analyses all the embedded information, and there is a lot more.
For that, special software transforms the digital data into many meaningful metrics: for example, how much electrical power the Brain expends at varying speeds, measured as frequency, at each of the 19 electrode locations.
In the next step, all these numbers are compared to a normative database of healthy Brains which tells us how statistically abnormal each value is.
From that, we generate the colour-coded graphs known as “Brain maps”, which are now easy to understand:
In most cases, the abnormal activity is consistent with and explains the reported symptoms.
Smart scientists have even managed to figure out how to precisely estimate where inside the Brain certain activity components come from, although the electrodes are on the outside of the skull.
It’s called LoRETA which stands for Low Resolution Electromagnetic Tomography. You can think of it as 3-dimensional EEG.
Of course, there are many more analyses that help us identify faulty Brain activity; a process which is indispensable for Comprehensive Neurotherapy with individually targeted Neurofeedback Brain Training, but I reckon you’ve seen enough to get the gist.
