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What is the name of that "nails on a chalkboard" feeling and what is its purpose?
Topic: Science , Subtopic: Neuroscience
Everyone knows that feeling. Whether it's from the sound of nails on a chalkboard or the feeling of a fork scraped across teeth, we feel that physical visceral revulsion. Even just the description of the sounds/feelings are enough to trigger the hairs on the backs of our necks to stand up. It's much...