For many years the discussion over the existence of free will was limited to philosophers and theologians. Scientists started talking about free will once science started separating as a discipline from philosophy. However, it wasn’t until the rise of functional neuroimaging that some neuroscientists started studying if the brain and deterministic brain processes could explain away free will. In short, some scientists want to discover whether or not free will is merely an illusion, an idea humans create out of an innate desire to feel in control.