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.
SAY: In Louisiana, Mardi Gras* is celebrated the day before Ash Wednesday. Mardi Gras began as a festival to enjoy the things a person was giving up for Lent. During the parades, beads are tossed from the floats to the onlookers.