
From lowering your risk of obesity and cardiovascular disease to improving your concentration and overall daily performance, sleep has been proven to play a critical role in our health. In a new study, researchers at University of California San Diego School of Medicine report that sleep may also help people to learn continuously through their lifetime.
Writing in the August 4, 2020 online issue of eLife, researchers used computational models capable of simulating different brain states, such as sleep and awake, to examine how sleep consolidates newly encoded memories and prevents damage to old memories.
“The brain is very busy when we sleep, repeating what we have learned during the day. Sleep helps reorganize memories and presents them in the most efficient way. Our findings suggest that memories are dynamic, not static. In other words, memories, even old memories, are not final. Sleep constantly updates them,” said Maksim Bazhenov, PhD, lead author of the study and professor of medicine at UC San Diego. “We predict that during the sleep cycle, both old and new memories are spontaneously replayed, which prevents forgetting and increases recall performance.”
Bazhenov said that memory replay during sleep plays a protective role against forgetting by allowing the same populations of neurons to store multiple interfering memories. “We learn many new things on a daily basis and those memories compete with old memories. To accommodate all memories, we need sleep.”
For example, imagine learning how to navigate to a parking lot by going left at one stop sign and right at one traffic light. The next day, you have to learn how to get to a different parking lot using different directions. Bazhenov said sleep consolidates those memories to allow recollection of both.
“When you play tennis, you have a certain muscle memory. If you then learn how to play golf, you have to learn how to move the same muscles in a different way. Sleep makes sure that learning golf does not erase how to play tennis and makes it possible for different memories to coexist in the brain,” said Bazhenov.
The authors suggest that the restorative value of sleep may be what is lacking in current state-of-the-art computer systems that power self-driving cars and recognize images with performances that far exceed humans. However, these artificial intelligence systems lack the ability to learn continuously and will forget old knowledge when new information is learned. “We may need to add a sleep-like state to computer and robotic systems to prevent forgetting after new learning and to make them able to learn continuously,” said Bazhenov.
Bazhenov said the study results could lead to developing new stimulation techniques during sleep to improve memory and learning. This may be particularly important in older adults or persons suffering from learning disabilities.
“While sleep is certainly involved in many important brain and body functions, it may be critical for making possible what we call human intelligence — the ability to learn continuously from experience, to create new knowledge and to adapt as the world changes around us,” said Bazhenov.
Griffey claims that, in the UK, in 1910, people averaged nine hours sleep a night. In 1990, this average was eight hours sleep a night. By 1995, according to a survey by First Direct, people in the UK were averaging seven hours and 35 minutes sleep a night. By 2004, the average had fallen to seven hours per night.
.
© Edublox
Real help for learning disabilities –
Video: It’s life-changing! Edublox helps overcome learning challenges
Watch Naeleigh’s heart-warming story of overcoming learning challenges. While Edublox’s Development Tutor is improving her cognitive skills like concentration, processing, memory and reasoning, Live Tutor and additional homework exercises provided by Edublox address her reading, spelling and math deficits. Continue Reading
Ashlyn, mom of Naeleigh, US Edublox Online Tutor May 26, 2022
Overcoming reading difficulties: Four children testify
Four children, Kelsey, Tshepo, Liam and Joshua share how struggling to read affected them, as well as how it feels now that they can read. Contact Edublox for help if your child struggles with similar problems.
Continue ReadingKelsey, Tshepo, Liam and Joshua Edublox Online Tutor March 5, 2022
Overcoming dyslexia: Elize tells her family’s experience
Elize tells her family's experience with Edublox. When her youngest daughter (now 25 years old) was in 4th grade, she realized her reading was not on par. The school said she should not worry. Continue Reading
Elize, mom of Marie-Louise Edublox Online Tutor March 5, 2022
Dyslexia & dyscalculia diary and video: “We can see her world getting bigger”
The whole Edublox system has helped Amy so much with reading and math, but it was hard for us to tell if it was helping her with this hidden, agonizing challenge. It certainly is! Continue Reading
Sandy, mom of Amy, US Edublox Online Tutor January 5, 2022
Video: Edublox’s online tutoring delivers demonstrable results
Dennis shares how Edublox is teaching his daughter Veronica to read after other programs had failed. She was diagnosed with apraxia. Apraxia is a neurological condition that makes certain motor movements difficult. It may affect speech and coordination, and may co-occur with learning disorders such as dyslexia and dyscalculia. Continue Reading
Dennis, Veronica's dad, US Edublox Online Tutor October 29, 2021
Dyseidetic dyslexia video: Measurable improvements in reading scores
Hilary shares her thoughts on "The Edublox Experience." Measurable improvements in standardized reading scores, confidence and fun. Continue Reading
Hilary, Rief's mom, US Edublox Online Tutor October 11, 2021
Video: Overcoming dyslexia and developmental delays
Vivienne was adopted from China at age 5. This video is about Susan helping her 11-year-old daughter overcome developmental delays, including dyslexia. They started with the Edublox program 13 weeks ago. This is their story. Continue Reading
Susan, Vivienne's mom, US Edublox Online Tutor August 22, 2021
“Carsten is reading 6 and 7 letter words and the most amazing part is he is spelling them as well!”
Now, after working with Susan and the Edublox program for the last 5 months, Carsten is reading 6 and 7 letter words and the most amazing part is he is spelling them as well! AMAZING! I never would have thought he would be spelling words that large so quickly. I asked his school teacher about what she has seen and she told me she’s seen a big difference... Continue Reading
Lisel Nielsen, Utah, US Edublox Online Tutor March 12, 2020
Video: Student with severe dyslexia improves from the 1st to the 55th percentile!
Meet Maddie, a 10-year-old who was diagnosed with severe dyslexia, moderate dyscalculia, ADHD and low IQ (low 80s). People who had evaluated her said that they had never seen dyslexia as severe as this before. Her parents had been told by more than one professional that Maddie would probably never read... Continue Reading
Kimberly, US Edublox Online Tutor May 23, 2019
“His ability to decipher words is phenomenal”
Kenny’s ability to spell now is stunning all of us. His ability to decipher words is phenomenal.... Kenny has learned that reading can be enjoyed and how to enjoy it... He is reading now on an above grade level average and scored above grade level on his State tests. Continue Reading
Donna, USA Edublox Online Tutor November 15, 2018