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Morality is a social process by which a person deems thoughts, intentions, choices or actions as either good (or right) or bad (or wrong). It can be based on a personal and/or a population's code of conduct or values.
Crockett et al. used model-based fMRI to investigate the neural basis of decisions to profit from harming others vs. themselves. Most people preferred to harm themselves over others for profit. This moral preference was associated with diminished neural responses in value-sensitive brain regions to profit gained from harming others.