TED-Ed: Seeing things that aren't there? It's pareidolia | Susan G. Wardle

The video explores face pareidolia, a phenomenon where humans perceive faces in inanimate objects. This occurs due to the brain's hypersensitivity to face-like structures, an evolutionary trait that aids social interaction. Brain imaging studies show that while humans can quickly identify real faces, they also often see illusory ones. This hypersensitivity is generally harmless and may be evolutionarily advantageous. The video also discusses how brain stimulation can alter face perception and highlights that pareidolia is not unique to humans, as seen in primates.

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