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He saw a fanged creature, blooded looked like "something out of a horror movie," standing beside her bed. He then explained his experience to the researchers, who are conducting a survey about sleep paralysis.
This phenomenon is common, but it's hard to explain, where someone awakened from sleep but was not able to move. Nearly 40 percent of people reported experiences sleep paralysis, in their lives, and some people hallucinate like Salma.
"Paralysis of sleep can be a very daunting experience for some, and a clear understanding of what actually caused it, will have major implications for people who are suffering," said Baland Jalal, a neuroscientist at the University of California, San Diego.
The researchers say that sleep paralysis occurs when a person wakes during the stage of sleep known as rapid eye movement (REM). People in this stage are usually dreaming sleep, their muscles almost paralyzed, which may be an evolutionary adaptation that makes people act like in a dream.
It is difficult to explain why some people who experience sleep paralysis, feeling threatened figure in their bedroom or pressing on the chest.
One possible explanation could be that, hallucinations are the brain's way of clearing up the confusion, when there is a disturbance in the brain region that holds a map of the nerves of the body, according to an article by Jalal and his Vilayanur Ramachandran, of UC San Diego, which was published in
the journal Medical Hypotheses.
"Maybe some of the brain, there is a genetic embedded images of the body, which had been imagined," said Jalal Live Science. Previous research has shown that the region may be a part of the parietal lobe, which is located in the upper-middle part of the brain.
There is a possibility that during sleep paralysis, watching the parietal lobe neurons in the brain are firing commands to move, but did not detect any actual movement of the limbs, which temporarily paralyzed. This can cause disruption in how the brain.
What's so scary about sleep paralysis?
There is a possibility that, different experiences of people who megalami sleep paralysis is, because of differences in their beliefs. Previous research has suggested that, the mind in the brain to form a particular phenomenon.
For example, Egypt and Denmark. Researchers found that, compared with study participants in Denmark, Egypt more often experience sleep paralysis, and last longer accompanied by a greater fear of dying.
"These are two very different cultures, Egyptians are very religious, while Denmark is one of the most atheistic countries in the world," said Jalal.
Most participants said they thought Denmark sleep paralysis caused by physiological factors, brain damaged or sleeping in the wrong way, while the Egyptians were more likely to believe that sleep paralysis is caused by supernatural factors.
In another survey, about half the participants from Egypt said they thought their sleep paralysis caused by a genie, a ghost, a creature from mythology threatens Islam, according to a study published in the journal Transcultural Psychiatry in 2014.
Jalal and his colleagues concluded that people with the supernatural beliefs, tend to be afraid of sleep paralysis. It is even possible that the fear of actually contributing to an increase in a person experiencing sleep paralysis, and vice versa.
"If you have fear, activation in the fear centers of the brain may mean more possibilities for fully awake when sleep paralysis, and experience it all," said Jalal.
Jalal think finding a scientific explanation for sleep paralysis, can help people get rid of the very scary and stressful, because they associate it with supernatural beings.
"Maybe some of the brain, there is a genetic embedded images of the body, which had been imagined," said Jalal Live Science. Previous research has shown that the region may be a part of the parietal lobe, which is located in the upper-middle part of the brain.
There is a possibility that during sleep paralysis, watching the parietal lobe neurons in the brain are firing commands to move, but did not detect any actual movement of the limbs, which temporarily paralyzed. This can cause disruption in how the brain.
What's so scary about sleep paralysis?
There is a possibility that, different experiences of people who megalami sleep paralysis is, because of differences in their beliefs. Previous research has suggested that, the mind in the brain to form a particular phenomenon.
For example, Egypt and Denmark. Researchers found that, compared with study participants in Denmark, Egypt more often experience sleep paralysis, and last longer accompanied by a greater fear of dying.
"These are two very different cultures, Egyptians are very religious, while Denmark is one of the most atheistic countries in the world," said Jalal.
Most participants said they thought Denmark sleep paralysis caused by physiological factors, brain damaged or sleeping in the wrong way, while the Egyptians were more likely to believe that sleep paralysis is caused by supernatural factors.
In another survey, about half the participants from Egypt said they thought their sleep paralysis caused by a genie, a ghost, a creature from mythology threatens Islam, according to a study published in the journal Transcultural Psychiatry in 2014.
Jalal and his colleagues concluded that people with the supernatural beliefs, tend to be afraid of sleep paralysis. It is even possible that the fear of actually contributing to an increase in a person experiencing sleep paralysis, and vice versa.
"If you have fear, activation in the fear centers of the brain may mean more possibilities for fully awake when sleep paralysis, and experience it all," said Jalal.
Jalal think finding a scientific explanation for sleep paralysis, can help people get rid of the very scary and stressful, because they associate it with supernatural beings.
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