Notice that some time slots are two hours and some are one hour. In general, we allot time based on the average time it takes to complete the experiment with some extra time for setup and leeway. We always try our best to get people out a few minutes early. For most of our experiments, we will start by asking you to complete some pen-and-paper questions. The pen-and-paper questionnaire may ask for some personal information (your gambling history, for example). However, you’re not obligated to answer any questions that make you feel uncomfortable. From here the experimenter will explain the experiment, and you can can ask any questions you might have. The experiment may involve EEG, or it may just be behavioural measurements i.e., only requiring mouse clicks or keyboard presses. Most often you will be given practice before you begin the experiment, and the experimenter will always make sure you understand the task so you feel comfortable with the experiment.
In general, our EEG experiments take two hours. Our EEG system uses salt water to help conduct electricity from your scalp, which means your hair will get damp. Most people will have round dots on their foreheads from the electrodes, but these go away in about a half hour (think of what happens to your wrist if you wear a wristwatch). Wearing the EEG net can be uncomfortable for some people, but if it does bother you please let the experimenter know and he or she will accommodate you. It always helps to know that EEG is completely non-invasive, and recording EEG does not hurt or harm you. We always thoroughly sterilize each EEG net after use, and we also minimize the wear and tear on the nets to keep them in excellent shape. Therefore, we would ask that you avoid putting hair product in before participating in an EEG experiment. As well, facial makeup can stain the electrode sponges, so we ask that you avoid makeup as well. Thanks for participating!!!