2023-06-05 13:47:00
It might be helpful for exams to put a power source under your pillow instead of books. Electric shocks during sleep apparently help the brain to better remember what they learned the day before.
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This is the result of a study conducted with 18 people with severe epilepsy. They received deep brain stimulation while they were sleeping – i.e. light electric shocks. The stimulation was administered during non-REM sleep, when the brain is believed to be consolidating memories it intends to use in the future, according to the publication of the work published in Nature Neuroscience has been published.
The electrical impulses should synchronize activity in two brain regions involved in memory consolidation: the hippocampus and the prefrontal cortex. As Itzhak Fried, one of the authors of the study and professor of neurosurgery at the University of California, Los Angeles, reported, the memory of what they had learned the day before had improved by 10 to 20 percent in some subjects, and by up to 80 percent in some others improved.
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The findings support a leading theory about how the brain converts a daily event into a memory that can last for days, weeks or even years. They also suggest a new approach to help people with a range of sleep and memory problems. “We know, for example, that sleep doesn’t work particularly well in dementia and Alzheimer’s patients,” says Fried. “The question is whether you can improve memory by changing the architecture of sleep.”
While the current data comes from a study with a small number of participants, who also all have the same disease, the researchers believe that certain basic principles can be applied to other people. Epilepsy patients were used because they already had electrodes in their brains as part of their medical exam. For the first attempts of this type, no particularly high extra effort was required.
- Electric shocks during sleep help to retain what has been learned
- 18 epilepsy patients received deep brain stimulation
- Synchronization of the hippocampus and prefrontal cortex
- Memories improved by 10-80%
- Researchers believe that results are applicable to others
- Dementia and Alzheimer’s patients could benefit from the method
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