For his final trick, Epley looked at the brains of recruits as they in turn attempted to peer into the mind of God. While sitting in an fMRI scanner, 17 people had to state how they, God or an average American would feel on a list of social issues, including universal health care, stem cell research, euthanasia, abortion, sex education and more. As before, their answers revealed a closer match between their beliefs and those they ascribed to God, than those they credited to the average Joe or Jill.
The brain scans found the same thing, particularly in a region called the medial prefrontal cortex (mPFC) that’s been linked to self-referential thinking. The mPFC is more active when we think about our own mindsets than those of others. Epley found that it was similarly abuzz when the recruits thought about their own at ude or God’s, but lower when they considered the average American. The three images below show the differences in brain activity between the three tasks and you can see that the ‘God’ and ‘self’ scans had little to distinguish them.