The shortest possible explanation for psychology as a scientific field today is:
Mechanisms are for us just natural instincts: reasoning instinct, decision instinct, motivational instinct and learning instinct. Simon Baron-Cohen showed, that 4-year-olds could easily understand that if they held candy, and someone looked at them, the person wanted the candy. But autistic people did not understand this. They did not have the reasoning instinct the other kids used to solve the problem. Instincts work so well that we do not even notice them. We are blind to them, and scientists are trying to look for these “hidden” instincts. (Buss, D. M., 2005)
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