Have you ever wondered what makes your imagination more or less active? Researchers at Princeton University want to find out – and they need your help!

Scientists at the university’s neuroscience research lab are asking for medical, law and financial professionals between ages 30 and 65 to participate in a study about imagination.

The study requires participants to complete imagination tasks during an MRI. Then, you get to take home a picture of your brain, a goodie bag and $100. Start by taking the survey here to see if you qualify.