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.
Here are the real meanings of five popular Mardi Gras traditions. Masks worn during Mardi Gras allow Carnival attendees to be whomever they want to be. Reuters. The Wearing Of Masks. Masks are an integral part of Mardi Gras culture. During early Mardi Gras celebrations hundreds of years ago, masks were a way for their wearers to escape class constraints and social demands. Mask wearers could mingle with people of all different classes and could be whomever they desired, at least for a few days.