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Showing posts from December, 2025

Can Science Help Us Catch a Liar?

While watching The Traitors , I started thinking about how people decide who is lying and who is telling the truth. So much of the game is built on trust, suspicion and reading other people - and so is real life and daily interactions. But it made me question how reliable those instincts really are. Are liars actually easy to spot, or are we just guessing? To answer that, we need to understand what a lie actually is and how it works in the brain. What is a lie? A lie isn't just a false statement, it's an intentional act of deception where somebody knows the truth but chooses to hide it. This is important because it means that something is only considered a lie where there is intentional deception, not just inaccurate memories or mistakes. Lying is a cognitively demanding process which involves several regeions of the brain working at the same time. When someone lies, the prefrontal cortex becomes especially active because the brain has to surpress the truthful response, hold it...