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.
Mardi Gras Beads or throws are a fun part of the Carnival festivities in New Orleans, Louisiana.
Mardi Gras beads are a throw krewe (club) members (the people on the floats) toss into the crowd. All throws bring the recipients good luck for the coming year. The thought is that they toss the color to the person whoexhibits that color's definition.