There are some sounds that stay with you, rattling around in your brain until they become part of your sonic memory. See enough movies, and certain sound effects will hold this honor—like the Wilhelm ...

Tickling is strange because it does not feel optional. You do not decide to laugh. Your body just does it. The sound comes out before your brain has time to judge whether anything is funny. People ...

Laughing at someone and laughing with someone leads to different social consequences. Joyful, mocking and ‘ticklish’ laughter activates different connections in the brain, a study has shown.