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Both real and fake smiles depend on cranial nerve VII, also known as the facial nerve, which sends signals from the brain to the muscles of facial expression. However, there’s a key neurological ...

Both real and fake smiles depend on cranial nerve VII, also known as the facial nerve, which sends signals from the brain to the muscles of facial expression.

Michelle Spear does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Both real and fake smiles depend on cranial nerve VII, also known as the facial nerve, which sends signals from the brain to the muscles of facial expression.

The team also didn’t account for eye movements or facial expressions, which can affect the activity of auricular muscles, he says. Strauss hopes to address some of these points in the future.