Results for "infrasound".

Infrasound exposure is linked to aversive responding, negative appraisal

IntroductionInfrasound describes sound wave frequencies below 20 Hz, which are typically imperceptible to humans. Some animals perceive and demonstrate avers...…

Study: Infrasound likely a key factor in alleged hauntings

Low-frequency infrasound (below 20 Hz) can raise cortisol levels in saliva and increase irritability.…

Study finds infrasound the likely horror in hauntings

Scientists Investigated a Frequency Linked to ‘Paranormal’ Encounters. The Results Were Unsettling.

Humans can’t hear low-frequency “infrasound,” but a new study demonstrates that it raises our stress levels and triggers an “unsettling” feeling that could be linked to people’s experiences in haunted…