Quantitative Electroencephalography (QEEG)
"Brain mapping" is often used to guide neurofeedback treatment planning and provide two-dimensional full color print out of your brain wave activity. Normative database comparisons help determine abnormal brain wave patterns. Additionally, the original brain map data is run through LORETA (Low Resolution Brain Electromagnetic Tomography) to produce three-dimensional brain images that provides additional evaluation and topographic information.What Is QEEG/Brain Mapping?
Quantitative EEG (QEEG) or “Brain Map” is a powerful tool for identifying significant excess and/or deficiencies
(abnormalities) in an individual’s brain electrical patterns that can be associated with disorders such as ADHD, Anxiety, Depression, etc.
The results of 
the QEEG are presented in the form of statistics with identified abnormalities in brain activity at 19 locations across the cerebral cortex.
In addition, an individual patient’s brain wave activity is compared to national norms and a “map” of the excesses/differences in the brainwaves
is developed. The QEEG is essential in planning neurofeedback training.
Low Resolution Brain Tomography (LORETA) is a additional analysis of the
electrical activity of a patient's brain waves which are processed during the
QEEG. Where the QEEG uses a two-dimensional "picture" of a patient's brain
wave patters across the cerebral cortex, the LORETA analysis results in two and
three dimensional "pictures" of deeper signal generators or sources of the EEG
signal.
The QEEG is completed at our office in about an hour. The patient wears a cap (non-invasive and pain-free) which has nineteen electrodes that are placed on the patient’s head and the brain wave is recorded through the skull.
An example of a brain map (eyes opened) with EEG absolute power Z-scores in 1Hz bins (1-30Hz):
An example of a LORETA brain map:
An example of an eyes opened LORETA detail of 30hz activity in the occipital lobe of the brain:
