Speak only Spanish with parents, being able to hold a spoon over the tongue for several minutes.
In the experiment we are measuring the activity of the brain using ERPs. For the recording of the ERPs you have to place a cap with electrodes (similar to a bathing cap) and gel on your head. It’s a very harmless method but you will have to wash your hair afterwards to get out the gel. We are having everything here for you to wash your hair.
Otherwise the experiment is very simple: all you have to do is to watch a movie. At the same time you have to hold a spoon over the tongue. The experiment takes between 1:30 to 2 hours (90 to 120 minutes). The time depends on how long it takes to put the cap. You will get paid depending on the time, between 15 and 20 Euros.