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 literally means Fat Tuesday in French (called Pancake Tuesday in England) and is associated with the Roman Catholic custom of Lent. busito69/iStock/Thinkstock. In places like New Orleans, the period of merrymaking with fancy balls and parades goes on for weeks leading up to Mardi Gras (Fat Tuesday). The idea behind Mardi Gras or carnival celebrations is that people overindulge before giving up something for Lent, which begins the following day with Ash Wednesday. The idea of partying before repenting seems to be to get as much revelry and additional sin out of the way before you decide to do anything about it.