We make judgements quite rationally or "by the gut". Not only experience and relevant information play an important role, but also our preferences. A study shows how the reward system in the brain conveys judgements affected by one's own desires.

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We make judgements quite rationally or "by the gut". Not only experience and relevant information play an important role, but also our preferences. A study shows how the reward system in the brain conveys judgements affected by one's own desires.