At the end of the procedure a flashing light may be placed nearby to see if this affects your brain activity. Sleep EEG or sleep-deprived EEG. A sleep EEG is carried out while you're asleep. It may be used if a routine EEG doesn't give enough information, or to test for sleep disorders.
This is all I could find on years...Prometheus was originally intended as a direct prequel to the 1979 science fiction horror film Alien, set approximately 30 years before the events depicted in the film. Alien supposedly takes place around 2122. Prometheus had a date of 2093 according to the intro.
Three videos featuring the film's leading actors in character, which expanded on elements of the fictional universe, were released and met with a generally positive reception and awards. Prometheus was released on June 1, 2012, in the United Kingdom and on June 8, 2012, in North America. It grossed over $403 million worldwide. Reviews praised both the film's visual aesthetic design and the acting, most notably Fassbender's performance as the android David.