Quantitative EEG - Brainmapping
A Quantitative Electroencephalogram (QEEG), also known as a Brainmap is a assessment technique that has benefits for neurofeedback. It is a procedure where EEG (brainwave) data is gathered and then compared to an age-matched normative database. Information from a QEEG can then be used to see what areas of the brain may be functioning inefficiently, aid in developing individualized and comprehensive treatment protocols, or even assist a physician in determining the best medications or supplements to recommend for various mental health issues. A QEEG can also be performed at the end of a course of treatment to measure and visualize how much improvement has been gained.
An elastic cap with 19 sensors is placed on the head so that the brainwave activity can be measured. There is no piercing of the skin. Brainwaves are then recorded with eyes closed and again with eyes open. This data is then compared to one or more normative databases. This results in a series of tables and graphs which indicate which areas have brainwave abnormalities, the degree of abnormality, and the brainwave frequencies that are involved. This makes it possible to develop specific neurofeedback protocols, unique to the individual.
Brainmaps guide efficient and effective treatment by guiding where the sensors should be placed and what frequencies and/or connectivity issues should be addressed in training.