EPFX and SCIO Definition. Electro Physiological Frequency Xrroid and Scientific Conscious Interface Operator.  EPFX / SCIO: Electro Physiological Frequency Xrroid/Scientific Conscious Interface Operator (formerly known as QXCI) combines the fields of Biofeedback and Neurofeedback. It scans the patient’s body for viruses, deficiencies, weaknesses, toxins, parasites, allergies and sensitivities. It also scans the energetic state of the patient’s body and internal organs to find the root causes of illness. The client does not have to physically visit the practitioner for therapy. Treatments can be done remotely.