Some remarks about the psychology of religion, meant as an autonomous discipline, are reported. On one hand the need that religious beliefs, feelings and behaviours are meant as specific dimensions is stressed. On the other hand it is claimed that the psychological approach is irreducible to the neurobiological one. Some attempts to give an account of the relationships between intelligence and religiousness are discussed as an example of the aforementioned conceptual issues.
Keywords: Psychology of religion, neuroscience, reductionism, belief, intelligence.