Señor Hugo, on Oct 28 2008, 07:04 AM, said:
While checking my daily news stuff, came across this, a very interesting read.
They ask the question, "If You Want to See a Specter Bad Enough, Will You?"
Persinger's work is well known in parapsychological circles, and there is very strong evidence to support the influence of electromagnetic fields on feelings associated hauntings. I believe that this has been narrowed down to complex magnetic fields. This is why I think it is important to have an EMF detector that picks up possible strong EMF fields from, say, bad wiring. We also use a static EMF detector which has shown good results when spiking in conjunction with other effects (for example recently we had the EMF spike twice to 20 uT, at the time an electronic device failed). A static EMF detector blocks out any man-made electrical fields. But I digress.
In the case of infrasound, there were a couple of articles I am aware of that form the basis of that theory. However, since vibrating a magnet at the same frequency as that associated with infrasound creates a complex magnetic field, there is controversy as to whether the effect is really caused by the magnetic field, and that the infrasound is really just a symptom. In the studies the researchers didn't measure magnetic fields however one felt "strange depressed and had cold shivers" which developed into a feeling of "a sensed presence" and later into a feeling of "being watched and that he was not alone". In the first study, they actually used a fencing foil to measure the frequency of the infrasound, which was found to be originating from a large, faulty electric motor built into an industrial fan. Since there is no known way that infrasound could actually cause any effects in your brain, it was postulated that the infrasound was vibrating the eyeball and causing these effects, which I think is a stretch.