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Human fear is contagious; rats can also catch it, which is observable at the neuronal level

Polish scientists have discovered that information about danger can be transmitted across species, possibly through scent. This was demonstrated by the following experiment: even if a human was behaving normally but had previously experienced negative emotions, rats playing with the person could sense that something was amiss and would become afraid themselves. This could be observed in the activity of their brains.   The ability to read the emotions of others, to understand what ...