Applies electrodes to precisely specified surface areas of the patient's head in order to obtain brain wave measurement (EEG); applies other combinations of sensors and electrodes to patient's body to obtain measurements, such as EKGs, EMGs, EOGs, air flow respiratory effort, and oxygen saturation. Studies data, prepares written reports and/or enters information into computer detailing tests performed, summarizing data, and other pertinent information, such as patient's medical history, completed patient questionnaires, previous tests conducted, presence and type of abnormality for analysis by physician or other health professional.