Researchers say that a person’s ability to curb the painful memories depend on the sleep of the sleep that he gets, meaning that if you are comfortable, and have a sufficient amount of sleep, your mind will be able to block negative memories, but if you suffer from insomnia, unfortunate memories and painful ideas will You still pursue you, and continue to disturb you for a long period of time.
In order to understand the mechanism that explains this idea, a research team from the University of York in England has a new study published by the National Academy of Scademy of Sciences to determine how the brain, in the event of sleep deprivation, is unable to curb negative ideas.
“This study may provide an important piece of inclusion to understand the reason behind the increasing risk of mental illness in people who suffer from chronic lack of sleep,” said researcher Scott Kyirny, Professor of Psychology at York University. “We want to know what is happening inside the brain in the event of not getting enough sleep.”
A previous study has proven that the recall of memories and the events of the past is done through a part of the brain known as “Al -Husayn”, while another part known as the “Dhahrani February Crown” is responsible for curbing painful memories.
Lobe
Kyreney explains that the scientific hypothesis that the research team has been proving is that the lack of sleep disrupts the ability of the frontal lobe to “curb the mechanism of calling memories.
Within the framework of the experiment, the researchers directed 85 volunteers towards linking faces with neutral features and certain situations that are exposed to them, including negative events such as car accidents or scenes of battles or violence. Carne says that the volunteers in the experiment “make a rich bond between the neutral face and the scene they see, and therefore in the event that the volunteer is exposed to the neutral face, it will automatically recover the scene without the need to see it again.”
In the next stage of the experiment, the volunteers were divided into two groups, so that the members of the first group were kept awake throughout the night, and the members of the second group are allowed to sleep on a family inside the laboratory while monitoring the different stages of sleep in which they pass between the sleep of “fast eye movement” (Rem Then sleep “Non Rem”. In the morning, members of the two groups are exposed to images of the neutral faces that they have seen on the previous day, with the volunteers directed to summon or curb the memories associated with the faces that are presented to them. Throughout the experiment period, a magnetic resonance examination was performed to measure the mental activity of all volunteers.
It is worth noting that the sleeping eye movement occurs after a person falls asleep between an hour to half an hour. This stage of sleep is rapidly moving the eye under the eyelids in all directions, and it is repeated several times during sleep and the mental activity during which it is similar to its activity in the event of waking up, and dreams usually occur during that stage.
As for sleeping in the non -fast eye movement stage, the brain is not in activity, as breathing slows down and blood pressure decreases. During this stage, the body works to repair damaged tissues, build bones and muscles, and enhance the immune system.
Hippocampus
The experiment demonstrated the validity of the hypothesis that the researcher Keirney worked to confirm, which is that the volunteers who remained awaken throughout the night have declined with the activity of the backbone cortex in a significant way, especially when they were trying to curb the painful memories of them, and on the contrary they have increased the activity of the “hippocampus”, which is the responsible part On calling memories. The researchers suggested that the reason for this was that the frontal lobe shell in this category could not curb the mechanism of calling the hippocampus.
The researchers say that these results show that sleep deprivation does not lead to a decline in brain activity in general, but rather that it affects certain parts of the brain related to the mechanism of calling or curbing memories and ideas.
As for the category that was allowed to sleep the night before the experiment, the researchers found a link between the activity of the Duassian frontal lobe and the volunteer’s sleep period in the rapid eye movement stage, especially with regard to the ability to curb the painful memories.
This note is “interesting because many mental illnesses associated with urgent ideas such as depression and post -traumatic disorders are also associated with sleep disorder in the rapid eye movement stage.
Researcher Maria Weber – a specialist in cognitive nerve medicine at the University of Glasgow, is not one of the participants in the experiment – that these results “involve a real benefit to improve therapeutic curricula” for some mental illnesses, and added in statements to the “Scinevik American” website that “medical interventions to improve sleep In the rapid eye movement stage, it can become part of the treatment of sympathetic memory disorders in patients such as PTSD. ” And you see that this scientific method may be used within the precautionary measures to ensure that negative ideas and unhappy memories are absolutely unhappy.