My previous flagged entry was a trio of papers detailing this, I'll repost them here, they're quite amazing. We talk about them quite a bit on our team of devs studying the political rhetoric.

Biological and cognitive underpinnings of religious fundamentalism Zhong https://pmc.ncbi.nlm.nih.gov/articles/PMC5500821/

A neural network for religious fundamentalism derived from patients with brain lesions https://www.pnas.org/doi/10.1073/pnas.2322399121

The neural underpinning of religious beliefs: Evidence from brain lesions https://pmc.ncbi.nlm.nih.gov/articles/PMC9583670/