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20 June 2016

Posterior superior temporal sulcus

How do our brains recognise the diverse facial expressions which communicate people’s feelings? Using sophisticated new instruments, American scientists have located a small area in the human brain that is responsible for decoding the specific facial muscle movements, like a furrowed brow or smiling lips, that combine to express a range of emotions from surprise and happiness to fear and anger. It's found in a region called the posterior superior temporal sulcus, behind the ear on the right side of the brain.

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