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.
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