Over Time, Lies May Desensitize Brain to Dishonesty

 

Scientists speculate that amygdala activity could represent the internal conflict between wanting to see oneself as honest and being tempted to act in self-interest by lying. This would fit with the scientists’ observation that people appeared to lie more readily in tasks where it benefited both themselves and their partner - possibly because it was easier to justify a lie that served the common good.

https://www.theguardian.com/science/2016/oct/24/from-porkies-to-whoppers-over-time-lies-may-desensitise-brain-to-dishonesty