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.
It wasnât until the beads were made of plastic that throwing them really became a staple of Mardi Gras in New Orleans. Rex, King of Carnival, waves to his subjects as he parades down St. Charles Avenue on Mardi Gras Day in New Orleans.