SKIRMISHER

Tandy’s a scientist who one night had an encounter with the “unexplained”: “I was sweating but cold and the feeling of depression was noticeable — but there was also something else. It was as though something was in the room with me,” Tandy said. “Then I became aware that I was being watched, and a figure slowly emerged to my left. It was indistinct and on the periphery of my vision, but it moved just as I would expect a person to. It was gray, and made no sound. The hair was standing up on the back of my neck — I was terrified.”

But it later turned out, the reason behind the “encounter with a ghost” was a fan emitting some low-frequency sound — which, Tandy says, is probably responsible for ghost sightings and ghostly experience everywhere..

Research has previously proven that exposure to low frequency sound can cause a variety of physiological effects, many of them adverse ones, such as shivering, anxiety and breathlessness. These responses can lead a person to think that some unseen danger is imminent, or feel like he is being watched. Infrasound might even cause hallucinations. Tests at NASA have shown that the human eyeball has a resonant frequency of 18 cycles a second, and will vibrate in sympathy with infrasound waves that have a similar frequency. Under these conditions, there would be a “smearing of vision” that is capable of making someone see evanescent hallucinations in the periphery of their visual field. This effect is reminiscent of the theories of neurologist Michael Persinger, who has suggested that electromagnetic waves can interfere with brain activity and lead people to think they see ghosts or aliens.

via METARELIGION

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