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A classic debate in the organizational justice literature concerns the question of whether procedural justice and distributive justice are independent constructs. We investigate this question by using fMRI methods to examine brain activation patterns associated with procedural and distributive unfairness. We observed a clear dissociation of activation between these two forms of justice, and only a minimal amount of shared activation in the hypothesized regions. Specifically, unfair procedures evoked greater activation in parts of the brain related to social cognition, such as the ventrolateral prefrontal cortex (VLPFC) and the superior temporal sulcus (STS), whereas unfair outcomes evoked greater activation in more emotional areas of the brain, such as the anterior cingulate cortex (ACC), anterior insula (AI) and the dorsolateral prefrontal cortex (DLPFC). We interpret the findings as supporting the notion that the two …