Aug 11, 2009
Listening to just 15 seconds of upbeat music can change your perception of the people around you.
Researchers played volunteers short clips of cheerful music and then had them rate the mood of faces in a series of photos. Almost instantaneously, the music changed the volunteers’ perceptions of what they saw in the pictures, and faces that were previously judged as emotionless became happy.
When the experiment was reversed, and depressing music was played, the opposite effect was achieved.(source)
