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 means Fat Tuesday. It signifies the last day of celebration before Ash Wednesday, the beginning of the Lenten season. The actual dates of Mardi Gras vary each year because the celebration is scheduled 47 days before Easter and the actual date of Easter varies by calendar year.