Infrasound and the Fear Response — What the Data Says
Across 23 investigations, we tracked both environmental infrasound readings and reported experiential responses from participants. The correlation is difficult to ignore.
The Setup
Over 18 months, across 23 investigations and 6 distinct sites, we collected parallel data sets: environmental infrasound measurements (18–40 Hz range) and structured experiential reports from all investigation participants.
Participants were not told when infrasound readings were elevated.
What We Found
In sessions where infrasound levels exceeded 85 dB (measured at 19 Hz), 78% of participants reported at least one of the following:
- Unexplained unease or dread
- Visual peripheral disturbances
- Disorientation or spatial confusion
- A sensation of being observed
In control sessions with sub-threshold infrasound, that figure dropped to 22%.
What This Means
We are not claiming infrasound explains paranormal phenomena. We are claiming it is a significant and underreported variable in investigation environments — one that most investigation teams are not measuring at all.
Our recommendation: every investigation kit should include infrasound logging as a baseline requirement.