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neuroethics serotonin Crockett

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serotonin neuroethics anger

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Crockett et al. have done some fascinating experiments demonstrating that increased serotonin makes individuals less likely to endorse moral scenarios that result in the infliction of personal harm to others.

serotonin morals neuroethics judgment moral-judgment

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If we knew what made some people vulnerable to the effects of tryptophan depletion, we would be a long way towards understanding depression. We still don't. But it's something to do with serotonin. In some people, in some circumstances, serotonin is the only thing between happiness and despair. No, really. (Neuroskeptic)

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"Serotonin (5-HT) has long been implicated in social behavior and impulsivity, but the mechanisms through which it modulates self-control remain unclear. We observed the effects of manipulating 5-HT function on behavior in the Ultimatum Game, where players must decide whether to accept or reject fair or unfair monetary offers from another player. Participants with depleted 5-HT levels rejected a greater proportion of unfair, but not fair offers, without showing changes in mood, fairness judgments, basic reward processing, or response inhibition. Our results suggest that 5-HT plays a critical role in regulating emotion during social decision-making." -- Crockett et al., 10.1126/science.1155577 -- Science

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