An international study headed by researchers from Aarhus University has for the first time uncovered the large-scale brain patterns and networks in the brain which control sleep, providing knowledge which in the future may help the large proportion of people who experience problems sleeping. .
We spend approximately one-third of our life as sleep and have fascinated researchers for many years. Research from the Center for Music in the Brain at Aarhus University and the University of Oxford has now revealed, an unprecedented detail, the patterns and networks used by the brain during sleep. The researchers have used a technique called functional MRI together with algorithms that can identify brain activity patterns.
"This provides a new and potentially revolutionary understanding of brain activity during sleep which can lead to new forms of treatment of the sleep problems. that affects far too many people, "explains Angus Stevner, postdoc at the Center for Music in the Brain at Aarhus University, who is behind the study.
The results have just been published in Nature Communications .
"Our results can change the way in which we understand sleep and, at least, the way we look at sleep disorders such as insomnia. We hope to utilize this new and detailed categorization of sleep to identify changes in the brain activity of people suffering from certain unexplained sleep disorders, such as dyssomnia or insomnia, which we currently cannot explain "states states.
Can help with sleep problem ems
Sleep has traditionally been divided into four stages which all produce different brain waves as a result of the brain's electrical activity, ranging from light sleep-the first stage — to deep sleep and the special REM (rapid eye movement ) sleep, and back again.
"This way of dividing sleep into stages is really based on historical conventions, many of which date back to the 1
Almost half of the Danish population experience sleep problems. The researchers hope that more and more detailed representation of how the brain's networks change can help them develop better models of the role played by sleep.
New knowledge about brain activity while we sleep
" At the moment we lack a consistent understanding of what's happening in the brain of someone suffering from insomnia, but also of the role sleep has in mental disorders, where sleep disorders are extremely common, "says the researcher.
In recent years, modern brain scanning techniques have led to a far more advanced understanding of the brain's complexity, which the traditional sleep stages do not take into account.
"Our results provide a modern description of human sleep as a function of the brain's complex network activities and we are trying to move on from the somewhat simplified picture that has thus characterized our understanding of brain activity during sleep, "he says.
How nature, nurture shape the sleeping brain
A. B. A. Stevner et al., Discovery of key brain transitions and dynamics during human wakefulness and non-REM sleep, Nature Communications (2019). DOI: 10.1038 / s41467-019-08934-3
New brain research challenges our understanding of sleep (2019, March 22)
retrieved 22 March 2019
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