This is an interesting article by Nick Perham.
Why are people religious? A cognitive perspective
Our relationships depend on being able to predict how others will behave across situations and time. But the things that we form attachments to don’t necessarily need to be in front of us to predict their actions. We can imagine what they would do or say.
This ability – known as cognitive decoupling – originates in childhood through pretend play. It is a small leap from being able to imagine the mind of someone we know to imagining an omnipotent, omniscient, human-like mind – especially if we have religious texts which tell of their past actions.
Another key adaptation that may help religious belief derives from our ability to anthropomorphise objects. Have you ever seen the outline of a person only to realize that it is actually a coat hung on the door? This capacity to attribute human forms and behaviours to non-human things shows we also readily endow non-human entities, such as gods, with the same qualities that we possess and, as such, make it easier to connect with them.
Behavioural benefits
In addition to these psychological aspects, the ritual behaviour seen in collective worship makes us enjoy and want to repeat the experience. Dancing, singing and achieving trance-like states were prominent in many ancestral societies and are still exhibited by some today – including the Sentinelese people, and Australian aborigines.
As well as being acts of social unity, even more formal rituals also alter brain chemistry. They increase levels of serotonin, dopamine, and oxytocin in the brain – chemicals that make us feel good, want to do things again and provide a closeness to others.
These cognitive adaptations are facilitated by educational and household norms which don’t tend to dispute religious ideas. While we are encouraged to challenge other ideas presented to us early in childhood that may not have a strong evidence base – such as Father Christmas or the Tooth Fairy – this is not the case with religion. These challenges are often discouraged in religious teachings and sometimes regarded as sinful.
Regardless of your point of view, the impact of religion and religious thinking on human functioning and evolution is a captivating intellectual debate that shows no sign of ending. Of course, one might argue that god creates everything outlined above but then this leads us onto another, bigger question: what is the evidence for god?
Nick Perham is a senior lecturer in psychology at Cardiff Metropolitan University. This article first appeared on The Conversation