Superiority illusion arises from resting-state brain networks modulated by dopamine

You better hope you have this delusion if you want to have any chance at recovery. And your doctor better not try the nocebo effect to knock you down to size. I have this in abundance.
http://www.pnas.org/content/110/11/4363.abstract

Abstract

The majority of individuals evaluate themselves as superior to average. This is a cognitive bias known as the “superiority illusion.” This illusion helps us to have hope for the future and is deep-rooted in the process of human evolution. In this study, we examined the default states of neural and molecular systems that generate this illusion, using resting-state functional MRI and PET. Resting-state functional connectivity between the frontal cortex and striatum regulated by inhibitory dopaminergic neurotransmission determines individual levels of the superiority illusion. Our findings help elucidate how this key aspect of the human mind is biologically determined, and identify potential molecular and neural targets for treatment for depressive realism.