Religion and delusion

We review scholarship that examines relationships – and distinctions – between religion and delusion. We begin by outlining and endorsing the position that both involve belief. Next, we present the prevailing psychiatric view that religious beliefs are not delusional if they are culturally accepted. We argue that although this cultural exemption has controversial implications, it is clinically valuable and consistent with a growing awareness of the social – as opposed to purely epistemic – function of belief formation. Finally, we review research on continuities between religious and delusional cognition, which reveals that religious content is quite common in delusions and which provides tentative evidence for a positive relationship between religious belief and delusion-like belief in the general population.