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How a Human Scream Uniquely Activates the Fear Response in Your Brain

We know human screams are jarring. They’re loud, occasionally shrill, and tend to make us feel stressed, or even fearful. What’s unclear is why they elicit anxiety. But a new study suggests this response may have something to do with the acoustic quality of human screams, and how they trigger the brain’s fear response. » 7/17/15 1:00pm 7/17/15 1:00pm

How do humans distinguish sarcasm from sincerity?

Most of us are pretty good at picking up on sarcasm. Quite frankly, we have to be. Much of the way we communicate as a modern society is structured around subtle contextual cues that tell us whether someone's mockingly contemptuous or earnest. Many of us can even pick up on sarcasm when it's conveyed entirely via text. » 11/17/11 2:40pm 11/17/11 2:40pm