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.
One of the most well-known names for this day, Mardi Gras (French for Fat Tuesday), reflects the tradition of enjoying rich foods on this day. Another common name for the holiday, Carnival, may also refer to this last enjoyment of rich foods.