EEG Introduction. An EEG, or electroencephalogram, is a test that can help diagnose epilepsy. During an EEG, the electrical signals of the brain are recorded. This electrical activity is detected by electrodes, or sensors, placed on the patient's scalp and transmitted to a polygraph that records the activity.
life of Riley definition. A life of luxury: âSheila found herself living the life of Riley after she won the lottery.â The expression comes from a popular song of the 1880s, âIs That Mr. Reilly?â, in which the title character describes what he would do if he suddenly became wealthy.
In addition, Native Americans used the butterfly as a symbol of color, joy, and change. Essentially, it was considered a symbol of transformation and resurrection in many cultures of the world. The spiritual meaning of butterfly is the endless cycles of life. It is a symbol of powerful transformations. The life cycle of the butterfly begins when it is hatched from an egg. It lives as a caterpillar immediately after hatching and later retreats back into the cocoon where it goes through a transformation.