What is qEEG?
In the simplest terms, quantitative electroencephalography (qEEG) is the process in which the constant electrical activity of the brain is transformed into digital information and pictures, providing an explicit snapshot of the brain’s activity. It takes the derived data, and compares it to a database to determine the hyper- and hypoactivity within different brain regions, illustrating functionality.
The instrument has been widely studied with a 96.39% accuracy rate, 9.45/10 sensitivity rate, and 97.44% specificity rate. Test sensitivity is the ability of a test to correctly identify those with the disease (true positive rate), whereas test specificity is the ability to corectly identify those without the disease (true negative rate). Presently, the qEEG has been utilized in over 120,000 research articles. Results have been accepted as an objective measurement of brain injury by the courts in the United States.
The image below is an example of what can be seen from a qEEG assessment.