Health
Study explores how the brain consolidates memories during sleep
Claudio Scott/Pixabay” alt=”A computer model of the brain reveals that during deep sleep cycles, the hippocampus teaches the neocortex what it learned from the previous day’s events.photo courtesy Claudio Scott/Pickbay“/>
This is a question many have asked: How do memories last?
Now, according to new research, it coagulates through the interaction of two different brain regions during sleep.
Memories are set up in the brain by cycling between slow wave eye movements and rapid eye movements (Rem) sleep occurs about five times a night, researchers report in the weekly’s Monday issue. Proceedings of the National Academy of Sciences.
A computer model of the brain suggests that during these deep sleep cycles, Hippocampus is teaching neocortex The scientist said what he learned from the previous day’s event.
The hippocampus is the brain’s center for new memories and is responsible for collecting daily information, the researchers explained. I am in charge of storage.
Sleep simulations showed that the hippocampus guides the brain to revisit recent events and data during slow-wave sleep. During REM sleep, the neocortical memory mostly replays those revisited events.
Co-investigator Dhairyya Singh, a sophomore doctoral student at the University of Pennsylvania (UPenn), said: “Then, in the REM phase, the neocortex is reactivated so that we can replay what we already know,” as the data settles into long-term memory.
Alternating phases are important because implicit memories are overwritten when the neocortex doesn’t get a chance to replay its own information, Singh said.
The findings are consistent with what is known to date sleep and memorybut UPenn neuroscientist and study co-author Anna Schapiro says aspects of the computer model are still theoretical.
“This still needs to be tested,” Shapiro said in a university news release. “One of our next steps for him is an experiment to understand whether REM sleep really brings back old memories and what impact it has on integrating new information into existing knowledge. is to do
For more information
Harvard Medical School has memory and sleep.
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