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The evolution of religion

Michael Shermer and Francisco Ayala
Posted: July 31, 2009.

Print: Los Angeles Times

Point: Michael Shermer

Did humans evolve to be religious and believe in God? In the most general sense, yes, we did. Here’s what happened.

Long ago, in an environment far away from the modern world, humans evolved to find meaningful causal patterns in nature to make sense of the world, and infuse many of those patterns with intentional agency, some of which became animistic spirits and powerful gods. And as a social primate species, we also evolved social organizations designed to promote group cohesiveness and enforce moral rules.


People believe in God because we are pattern-seeking primates. We connect A to B to C, and often A really is connected to B, and B really is connected to C. This is called association learning. But we do not have a false-pattern-detection device in our brains to help us discriminate between true and false patterns, and so we make errors in our thinking. A Type I error is believing a pattern is real when it is not (a false positive) and a Type II error is not believing a pattern is real when it is (a false negative).

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Comments (2)

Couldn’t Shermer and Ayala both be correct?  If religion effectively calmed anxiety about death and thereby produced more stable individuals and communities, might that favor religious individuals and communities in natural selection?

posted on August 6, 2009
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2. notodysseus

ClearPusuit is right - is there an editorial issue with the ‘point’ and ‘counterpoint’ slant as indeed the two views do seem entirely compatible.
The more general points, especially in Shermer appear to be an indication of the rapid progress in what might be called ‘comparative’ or ‘evolutionary’ psychology.
It’s a field I know little of - but I did wonder if the primate family is the right level - his example of selection against Type 1 errors would surely apply to many creatures - and may have applied to human ancestors much further back than early primates: reptiles, even fish, in fact anything small that can move would do well to move away rather than trust to luck that swish in the grass or pressure wave in the water is not a prelude to becoming someone’s dinner.
What is more, the part of the brain linked to fear (amygdala) and arguably therefore such avoidance behaviour is deeper and more ancient [evident in ‘older’ species] than the much more recent primate / humanoid expanded frontal cortex - which may articulate but perhaps not originate fear - and has been referred to as the ‘reptilian brain’.
I have no doubt there is evidence for Shermer & Ayala’s points - I would be interested to know more.

posted on August 7, 2009
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