Search results
Results from the WOW.Com Content Network
Combined with the natural spread in thresholds within a population, its effect may be that a very low-frequency sound which is inaudible to some people may be loud to others. [citation needed] One study has suggested that infrasound may cause feelings of awe or fear in humans.
[13] [14] Their research led them to conclude that infrasound at or around a frequency of 19 Hz, [2] [11] [15] has a range of physiological effects, including feelings of fear and shivering. [8] Though this had been known for many years, Tandy and Lawrence were the first people to link it to ghostly sightings. [9]
Infrasound is sound at frequencies lower than the low frequency end of human hearing threshold at 20 Hz. It is known, however, that humans can perceive sounds below this frequency at very high pressure levels. [ 1 ]
In fear conditioning, the main circuits that are involved are the sensory areas that process the conditioned and unconditioned stimuli, certain regions of the amygdala that undergo plasticity (or long-term potentiation) during learning, and the regions that bear an effect on the expression of specific conditioned responses.
The therapies and drugs developed to treat PTSD don’t get at the root of moral injury, experts say, because they focus on extinguishing fear. PTSD therapy often takes the form of asking the patient to re-live the damaging experience over and over, until the fear subsides.
Vladimir Gavreau, born Vladimir Gavronsky (1904 – 1967), [1] was a French scientist making experiments on the biological effects of infrasound. Gavreau was born in Moscow . His interest in infrasonic waves first came about in his lab during the 1960s, when he and his lab assistants experienced pain in the ear drums and shaking lab equipment ...
Abdominal discomfort is commonly a side effect of medications as well – or may be a symptom of an illness like the flu or a health condition such as GERD, kidney stones or pancreatitis.
In 2002–2003, Angliss initiated and led Infrasonic [16] (aka Soundless Music) - an experiment to explore the strange psychological effects of airborne infrasound (sound below 20 Hz). Angliss noted infrasound is used in sacred organ music [ 17 ] to create a sense of awe - it's emitted by bass pipes over 28 feet (8.5 m) long.