This article summarizes some of the quantitative electroencephalography EEG (QEEG) and QEEG literature
associated with several medical conditions. This peer reviewed scientific literature demonstrates that we can
commonly expect to find disturbed electrophysiological patterns associated with Lyme disease, systemic lupus
erythematosus, migraines, irritable bowel syndrome, and cardiopulmonary bypass surgery patients. Abnormal EEG patterns are also commonly found in fibromyalgia and chronic fatigue and in individuals with chemical sensitivities and those who have been exposed to toxic substances or extensive radiation. This literature encourages us that EEG biofeedback holds potential to assist patients with all of these conditions, and the data provided have implications for how neurofeedback treatment may be done.

Biofeedback Magazine: Volume 34, Issue 3, pp. 87-94; D. Corydon Hammond, PhD, ECNS, QEEG-D, BCIA-EEG