EEG (or electroencephalogram) is a recording of brainwave activity. QEEG (Quantitative EEG), popularly known as brain mapping, refers to a comprehensive analysis of brainwave frequency bandwidths that make up the raw EEG. QEEG is recorded the same way as EEG, but the data acquired in the recording are used to create topographic color-coded maps that show electrical activity of the cerebral cortex.
QEEG measures electrical activity of the brain. It provides complex analysis of such brainwave characteristics as symmetry, phase, coherence, amplitude, power and dominant frequency. In fact, subtle disruptions of electrical connectivity and flow in the brain sometimes may be the only or the early signs of a problem.
The primary use of QEEG is to examine patterns of brainwaves and help determine whether a person is an appropriate candidate for Neurofeedback, a treatment that normalizes brainwaves. QEEG does not render a diagnosis, but is designed to help the clinician to make a diagnosis. QEEG is not a substitute for EEG; it is a different process than that carried out by the neurologist when he or she performs an EEG assessment.
Reading the Maps
QEEG results are presented as Z scores. Z scores represent Standard Deviations (SD) from the norm and span from -3 to +3. Thus a Z score of +2 means that the result is 2 Standard Deviations higher than the norm (+2SD) and exceeds 98% of the age-matched people in the normative sample. A Z score of 0 represents the norm and is color-coded green. Red and blue colors on the maps show brainwave activity that is 3 SDs above or below the norm.
Red = Excessive
Blue = Diminished Activity
Excessive Theta waves (4-8 Hz) at the central & left parietal area due to traumatic brain injury, presented in 1 Hz slices. The red color represents increased slow wave activity at the site of the injury.
Before Neurofeedback Treatment:
After Neurofeedback Treatment:
Diminished coherence in the left hemisphere after a concussion to the left frontal area. Blue lines show reduced neural connectivity.
Typical ADD signature: excessive generalized Theta and diminished Beta.
QEEG combined with LORETA (Low Resolution Electromagnetic Tomography) enables examining of deep structures of the brain slice by slice, as well as viewing 3-dimentional models of the brain. Here is asymmetrically increased slow wave activity typical of depression: too much Alpha and Theta (red) on the front left side.
Increased slow wave (Theta) activity in the Frontal Lobes commonly seen in ADD.
Seen here are diminished fast Beta waves in the Frontal lobes (blue) and excessive slow Theta waves in the Hippocampus (red), indicative of the early stages of Alzheimer’s disease.
Neurotherapy is a general term for the integrated use of traditional EEG brain wave biofeedback and cutting edge brain stimulation techniques which speed up neuro feedback. Neurotherapy depends upon a brain assessment which allows us to structure an individualized treatment plan for the client struggling with addiction. We use state of the art EEG brain mapping techniques that tell us what neurotherapy tools will be used and in what sequence. Remapping the client after several weeks give us a progress report, and lets us know if we need to modify our treatment plan as the brain heals.
The EEG brain mapping tells us many things. It can let us know if the brain is suffering from an undetected head injury or concussion. This is important because head injuries frequently go undetected and yet even mild head injuries where the client does not lose consciousness can still impair thinking and judgement making the client much susceptible to addiction or relapse. We can also detect and assess underlying learning problems which undermine morale and can lead to self medication.
One of the single greatest causes of addiction can be unresolved traumatic stress and emotional difficulties that lead to self medication. EEG brain mapping provides a powerful way to show the client how emotional stress has made their brain vulnerable to addiction. Our client