Navigation Links
Sleep May Be Essential for Long-Term Memory
Date:6/24/2009

Researchers demonstrate that slumber key to storing memories

WEDNESDAY, June 24 (HealthDay News) -- Researchers at MIT have confirmed that sleep is essential for long-term storage of memories.

Their study showed that mice unable to "replay" their awake experiences while asleep remember them less well than mice who can perform this function. Scientists from the RIKEN-MIT Center for Neural Circuit Genetics at MITs Picower Institute for Learning and Memory report their findings in the June 24 issue of Neuron.

"Our work demonstrates the molecular link between post-experience sleep and the establishment of long-term memory of that experience," study author Susumu Tonegawa, Picower Professor of Biology and Neuroscience, said in a school news release. "Ours is the first study to demonstrate this link between memory replay and memory consolidation. The sleeping brain must replay experiences like video clips before they are transformed from short-term into long-term memories."

Researchers tested their theories by implanting electrodes in the brains of mice that were fed a special diet to disrupt their trisynaptic circuits. These circuits, found in the hippocampus, are now confirmed to play a crucial role in processing memories before they move on to other regions for storage.

While they were awake and running in a maze, the mice formed cells that fired in recognition of their newly learned task -- negotiating the maze. Those cells fired in similar sequences during their post-run sleep. Mice whose trisynaptic circuits functioned properly during sleep remembered the maze longer than those whose trisynaptic circuits were disabled, researchers reported.

"Our conclusion is that the trisynaptic pathway-mediated replay of the hippocampal memory sequence during sleep plays a crucial role in the formation of a long-term memory," said Tonegawa.

More information

Learn more about this and other studies at The Picower Institute.



-- Peter West



SOURCE: MIT News Office, news release, June 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Time to Set Kids Back-to-School Sleep Clocks
2. AASM encourages those student-athletes at risk for developing osa to visit a sleep clinic
3. Sleepless Kids Are Troubled Kids
4. Jefferson specialists studying innovative surgery for effectively treating sleep apnea
5. Work time is the largest influence to the duration of a persons sleep
6. Passive smoking increases sleep disturbance among pregnant women
7. Minorities more likely to have sleep durations associated with increased mortality
8. Lack of sleep among new school-goers leads to behavioral, cognitive problems
9. Work Time Predicts Sleep Time
10. Nicotine in breast milk disrupts infants sleep patterns
11. Pain patients at risk for sleep apnea
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sleep May Be Essential for Long-Term Memory
(Date:9/22/2017)... ... ... “Letters From Home”: a moving compilation of letters that remind readers of ... Home” is the creation of published author, John Allred, a passionate leader of ministry ... International, who has traveled and ministered on four continents. , “It is my hope ...
(Date:9/21/2017)... CA (PRWEB) , ... September 21, 2017 , ... With ... so fun and easy to do. Users can select from up to two layers ... with a click of a mouse all within Final Cut Pro X. ...
(Date:9/21/2017)... ... September 21, 2017 , ... The American Addiction Treatment ... for professionals in the addiction treatment industry entitled: Special Investigations Unit (SIU) ... companies and state and federal governments are increasingly scrutinizing the addiction treatment industry ...
(Date:9/21/2017)... ... ... Bill Howe Plumbing’s mission is to create an employee friendly company, provide ... over 37 years, they have operated with their mission at the foundation and have ... They were chosen as the Best San Diego plumber in 2016, named a Top ...
(Date:9/21/2017)... , ... September 21, 2017 , ... ... developing low-cost and highly accurate cancer screening tests, has received two prestigious recognitions ... in cancer survival rates. , Preora has been named a Top ...
Breaking Medicine News(10 mins):
(Date:9/12/2017)... , Sept. 12, 2017   EcoVadis , the leading platform for ... the first annual edition of its Global CSR Risk and Performance Index. ... by EcoVadis, based on Scorecard Ratings that analyzed nearly 800,000 data points ... ... ...
(Date:9/9/2017)... , Sept. 9, 2017  Eli Lilly and ... primary and secondary endpoint data for lasmiditan, an investigational, ... which demonstrated statistically significant improvements compared to placebo in ... highlighted today at the 18th Congress of the International ... "The data presented today demonstrate lasmiditan,s potential ...
(Date:9/7/2017)... WARSAW, Ind. , Sept. 7, 2017  Zimmer ... leader in musculoskeletal healthcare, today announced that it will ... Annual Global Healthcare Conference at the Grand Hyatt hotel ... September 11, 2017 at 11:40 a.m. Eastern Time. ... accessed via Zimmer Biomet,s Investor Relations website at ...
Breaking Medicine Technology: