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
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.