Inaudible infrasound shifted participants' moods

Participants said their moods shifted after exposure, even though they couldn't actually hear the sound.
Both relaxing and creepy music played during tests were described as sadder.
This lines up with earlier research showing infrasound can make environments feel weird or unsettling, like what concertgoers reported back in a 2002 London study.

Researchers to test haunted locations' infrasound

Researchers now want to check if so-called haunted locations really have higher levels of infrasound compared to regular buildings.
If they do, science could finally have an answer for those mysterious vibes we sometimes get.