A new study may shed light on how much weight we place on our sense of fairness when we are faced with an ethical dilemma. Researchers from the California Institute of Technology and the University of Illinois, Champaign-Urbana say that their recent work shows that differences in our moral decisions are tied to how much weight our brains place on fairness. "What was really surprising, in terms of the results that came out, was that it showed our sense of fairness is rooted in emotional processing, and there's a great deal of individual differences.

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