Moral Psychology — What Science Reveals About How We Make Ethical Decisions
Why do most people pull the lever but refuse to push someone off a bridge, even when the arithmetic is identical? Why does framing a choice as an action versus an omission change the verdict? And why do our snap moral judgments so often override our careful reasoning — or vice versa? Experimental moral psychology uses the methods of cognitive science to study how people actually make ethical decisions, not how they say they do. The dilemmas below are the same ones researchers use in labs to probe the hidden machinery of moral thought.
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A runaway trolley is heading toward 5 people. You can pull a lever to divert it — but it will kill 1 person instead.
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Research background
Researchers have found that people's responses to moral dilemmas are shaped by both fast emotional reactions and slower deliberative reasoning — and that these can conflict. The trolley problem family of cases has been central to this empirical research since the 1980s.
- Experimental Moral Philosophy — Stanford Encyclopedia of Philosophy
- Moral Cognition Research — Harvard University (Joshua Greene)
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