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.
Prometheus was the ancient Greek Titan-god of forethought and crafty counsel who was given the task of moulding mankind out of clay. His attempts to better the lives of his creation brought him into conflict with Zeus. Firstly he tricked the gods out of the best portion of the sacrificial feast, acquiring the meat for the feasting of man.