Navigation Links
Aging Hinders Memory Storage During Sleep
Date:7/29/2008

Study in rats suggests brain needs 'experience replay' during slumber

TUESDAY, July 29 (HealthDay News) -- Aging hinders the consolidation of memories during sleep, a process that's crucial for the conversion of fresh memories into long-term ones, say University of Arizona researchers.

The researchers recorded activity in the hippocampus -- a brain region involved in learning and memory -- in 11 young and 11 old rats as they navigated mazes for food rewards. The rats' hippocampal activity was recorded again when they slept.

In the young rats, the sequence of neural activity recorded while they navigated the mazes was repeated while they slept. This was not the case in most of the older rats.

The researchers also found that among both young and old rats, those with the best sleep replay performed the best in their age groups on spatial memory tasks.

"This is the first study to suggest that an animal's ability to perform a spatial memory task may be related to the brain's ability to perform memory consolidation during sleep," study author Carol Barnes said in a Society for Neuroscience news release.

The study is in the July 30 issue of The Journal of Neuroscience.

"These findings suggest that some of the memory impairment experienced during aging could involve a reduction in the automatic process of experience replay," Michael Hasselmo, of Boston University, said in a Society for Neuroscience news release.

Identifying the specific memory deficit in the brains of older adults may be the first step to preventing age-related memory loss, he said.

"This study's findings could inspire the development and testing of pharmacological agents designed to enhance memory replay phenomena," Hasselmo said.

More information

The American Academy of Family Physicians has more about

Copyright©2008 ScoutNews,LLC.
All rights reserved

Page: 1 2

Related medicine news :

1. American Imaging Management Partners with Blue Cross and Blue Shield of Vermont
2. Aging Baby Boomers Meld Life-saving Data and Style with Lauren's Hope Fashion Medical ID Bracelet
3. Seeding the future: SNM grants grow molecular imaging and nuclear medicine research
4. Imagilys Releases Patiencys, a 3D-animation Movie to Improve Magnetic Resonance Imaging Quality and Safety
5. Medicexchange.com Launches a New Dedicated Nuclear Medicine and Molecular Imaging Community for Medical Imaging Professionals
6. With $2M NIH grant, FSU becomes 1 of worlds top imaging centers
7. Dilon Technologies Signs Amerinet for Breast-Specific Gamma Imaging
8. Eating Less May Slow Aging Process
9. iCRco Releases Clarity PACS, the Clear Solution for Your Digital Radiology Imaging Needs
10. Aging Brain Can Learn New Tricks
11. Avalere Examines Emerging Strategies for Managing Imaging Utilization
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/27/2015)... 2015 Genius Monkey is pleased to ... marketing technology, they have boosted sales for the Utah ... regional level for seven Utah-based dealers. , Until ... and radio media. In 2014 the Utah Honda dealers ... Genius Monkey , shifted their marketing campaigns more ...
(Date:5/27/2015)... May 27, 2015 “Heroin has never been ... our overdoses are coming from,” says Harford County Sheriff Jeff ... May 8th. In the surging heroin related incidents in Baltimore, ... prevention education to prevent heroin addiction and subsequent abuse before ... charge. Drug Rehab Baltimore is a drug and alcohol rehab ...
(Date:5/27/2015)... 2015 SmarterSkin, http://www.smarterskindermatology.com , is taking ... test that makes it easier for patients to find skin ... , Dr. Sejal Shah is a cosmetic dermatologist based in ... offer the test. This revolutionary DNA test uses 16 genetic ... aging: , 1. Firmness and elasticity , 2. ...
(Date:5/27/2015)... Holly CaSaroll, founder of FACE, the award-winning beauty ... cancer. The skin is the body’s largest organ and is ... 3.5 million cases of skin cancer are diagnosed in the ... sun's ultraviolet rays (UVR). , There are several things ... Avoid the sun between the hours of 10 AM and ...
(Date:5/27/2015)... May 27, 2015 The news is ... of lack of compliance documentation or appropriate training: an ... Miami, a propane gas company in Texas and the ... for incidents and accidents due to improper training and ... is proud to introduce the new Supervisor feature which ...
Breaking Medicine News(10 mins):Health News:Genius Monkey Boosts Utah Honda Dealers Website Traffic 142% 2Health News:The Price of Heroin in Baltimore Drops, Surging Use and Causing Rife Overdose Deaths 2Health News:The Price of Heroin in Baltimore Drops, Surging Use and Causing Rife Overdose Deaths 3Health News:SmarterSkin Dermatology is Now Offering Skin DNA Analysis 2Health News:In Recognition of National Melanoma Awareness Month, Beauty Guru Details Skin Tips to Prevent Cancer and Premature Aging 2Health News:New Supervisor Feature Streamlines HR Compliance Reporting and Documentation 2Health News:New Supervisor Feature Streamlines HR Compliance Reporting and Documentation 3
... 28 (HealthDay News) -- Rheumatoid arthritis (RA) patients with low ... study finds. Previous research has shown that 13 percent ... associated with worse outcomes. In this new study, researchers ... 466 RA patients and found that 37 percent of them ...
... 28 (HealthDay News) -- Retired professional football players use ... the general U.S. population, a new study shows. ... 1979 and 2006 about their overall health, level of ... prescription pain drugs. Seven percent of the retired ...
... preserve the voice and vocal cord function for patients ... a study from Henry Ford Hospital in Detroit. ... squamous cell carcinomas, offering patients a less invasive option ... the voice," says study co-author Vanessa G. Schweitzer, FACS, ...
... Reporter , FRIDAY, Jan. 28 (HealthDay News) -- People facing ... by lack of control -- with doctors poking and prodding ... Hospice care, however, can give back some control over ... and helping both the dying person and the person,s family ...
... Australian researchers have come one step closer to understanding ... why many common drugs, including some antibiotics, antihistamines and ... It is estimated around 40-50% of all drugs in ... carries electricity in the heart and, as a result, ...
... Thompson HealthDay Reporter , FRIDAY, Jan. 28 (HealthDay News) ... doesn,t mean you die on anyone else,s timetable. Dennis, 91, ... ago, after she was diagnosed with a fatal heart condition. At ... "The illness, the heart condition that I have, is one ...
Cached Medicine News:Health News:Depression in Rheumatoid Arthritis Patients Linked to Social Status 2Health News:Retired NFL Players More Likely to Take Painkillers 2Health News:Voice-saver: Light therapy for early-stage laryngeal cancer 2Health News:Voice-saver: Light therapy for early-stage laryngeal cancer 3Health News:More People Choosing Hospice at Life's End 2Health News:More People Choosing Hospice at Life's End 3Health News:Victor Chang scientists unlock the 'gates' on sudden cardiac death 2Health News:Woman's Life Refutes a Hospice Myth 2
(Date:5/27/2015)... Research and Markets( http://www.researchandmarkets.com/research/d85hx9/global_rapid ) has announced the addition ... - Applications and Technologies" report to their offering. ... estimated at US$19.4 billion in 2014, forecast at US$20.4 ... CAGR of 5.7% between 2014 and 2020 to reach ... global market for Rapid Medical Diagnostic Kits (MDKs) has ...
(Date:5/27/2015)... May 27, 2015 E-QURE, Corp. ... engaged in the development and commercialization of its Bio-electrical ... electrotherapy for the noninvasive treatment of hard to heal ... Zacks Small Cap Research http://scr.zacks.com issued a ... According to Zacks, research update, E-QURE Corp "…has a ...
(Date:5/27/2015)... LONDON , May 27, 2015 ... you trends, partnerships, and predicted revenues   ... manufacturing heading? What are the commercial prospects for ... a whole? Visiongain ,s new report shows you ... opportunities and prospects. Our 203 page report ...
Breaking Medicine Technology:Global Rapid Medical Diagnostic Kits Market - 2015-2020 Applications and Technologies Analysis of the $27 Billion Industry 2Global Rapid Medical Diagnostic Kits Market - 2015-2020 Applications and Technologies Analysis of the $27 Billion Industry 3Global Rapid Medical Diagnostic Kits Market - 2015-2020 Applications and Technologies Analysis of the $27 Billion Industry 4Zacks Investment Small Cap Research Issues Quarterly Update on E-QURE 2Zacks Investment Small Cap Research Issues Quarterly Update on E-QURE 3Medical Device Contract Manufacturing Market Forecast 2015-2025 2Medical Device Contract Manufacturing Market Forecast 2015-2025 3Medical Device Contract Manufacturing Market Forecast 2015-2025 4Medical Device Contract Manufacturing Market Forecast 2015-2025 5Medical Device Contract Manufacturing Market Forecast 2015-2025 6Medical Device Contract Manufacturing Market Forecast 2015-2025 7
... Mich., May 15, 2012  InfuSystem Holdings, Inc. (NYSE MKT: ... related services for the healthcare industry, today announced that ... on Monday, May 21, 2012 following the market close.  ... conference call on Tuesday, May 22, 2012 at 9:00 ...
... 15, 2012 /PRNewswire-iReach/ -- Global Information Inc. ... Drug Development: Contract Research Organizations Market ... at the rate of 12% from 2009 to 2010 ... Contract Research Organizations Market to 2018 : Public-Private Partnerships ...
Cached Medicine Technology:Contract Research Organizations Set to Experience Rapid Growth as Development Costs for New Drugs Continue to Rise 2
... First Stop absorbable collagen hemostat. FirstStop is ... handling and removal characteristics. It can easily ... fit the wound. FirstStop products are not ... peeled away after hemostasis is achieved. As ...
The VasoSeal Low Profile device is designed for smaller sheath angiography procedures. VasoSeal Low Profile. Seal your arterial punctures with confidence....
... D-Stat Flowable Hemostat has a thick, ... application, such as vascular access sites ... is also used as an adjunct ... tissue tracts of femoral access sites ...
The D-Stat Radial hemostat band utilizes a compression band together with the active haemostatic material of the D-Stat to control surface bleeding....
Medicine Products: