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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.
Infrasound sensitive fibers are found to be simple bipolar cells in the auditory ganglion with a diameter of 1.6-2.2 μm at the axon and 0.9-1.2 μm at the dendrites. [19] They originate in the apical end of the cochlea and they are located near fibers that transmit low frequency sounds in the acoustic range.
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.
A new study from the University of Chicago finds that all humans have an innate sense built in that makes us fear things that are moving closer towards, rather than moving away. In evolutionary ...
[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.
Fear causes the organism to seek safety and may cause a release of adrenaline, [4] [5] which has the effect of increased strength and heightened senses such as hearing, smell, and sight. Self-preservation may also be interpreted figuratively, in regard to the coping mechanisms one needs to prevent emotional trauma from distorting the mind (see ...
Listening is still one of the main methods used in bioacoustical research. Little is known about neurophysiological processes that play a role in production, detection and interpretation of sounds in animals, so animal behaviour and the signals themselves are used for gaining insight into these processes.
I had food poisoning last year, having been unlucky enough to eat a rogue quiche. The time before that was three years earlier. Both times I sat in front of the toilet for an hour before finally ...