Navigation Links
Age-related memory loss tied to slip in filtering information quickly
Date:9/2/2008

Scientists have identified a way in which the brain's ability to process information diminishes with age, and shown that this break down contributes to the decreased ability to form memories that is associated with normal aging.

The finding, reported in the current online early edition of Proceedings of the National Academy of Sciences, fuels the researchers' efforts, they say, to explore strategies for enhancing brain function in the healthy aging population, through mental training exercises and pharmaceutical treatments.

The research, conducted by University of California, San Francisco and University of California, Berkeley scientists, builds on the team's seminal 2005 discovery ("Nature Neuroscience," October 2005) that the brain's capacity to ignore irrelevant information diminishes with age.

The capacity to ignore irrelevant information -- such as most of the faces in a crowded room when one is looking for a long-lost friend and to enhance pertinent information -- such as the face of a new acquaintance met during the search for the old friend is key to memory formation. This process is known as top-down modulation.

In the 2005 study, the team recorded brain activity in younger and older adults given a visual memory test in which they were shown sequences of images (sets of two faces and two scenes), told to remember a specific category, and then asked to identify an image from that category nine seconds later. The scientists, using functional magnetic resonance imaging (fMRI), determined that the neurons of the older participants (ages 60 to 72) responded excessively to the images they should have ignored, compared to the younger adults (ages 19 to 33). This attention to the distracting information directly correlated with how well the participants did on the memory test.

In the current study, the team used electroencephalography (EEG), which measures the speed of neural processing, to examine t
'/>"/>

Contact: Jennifer O'Brien
jobrien@pubaff.ucsf.edu
415-476-2557
University of California - San Francisco
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Verizon Awards $1.5 Million Grant to Expand American Foundation for the Blinds Web Site for Seniors With Age-Related Vision Loss
2. Model to study age-related macular degeneration could pave way for better treatment
3. Optherion Licenses Worldwide Rights to Develop Age-Related Macular Degeneration Diagnostics Based on Chromosome 10 Genetic Variations
4. Activating protein enhances average lifespan, limits age-related disease in mice
5. Mouse Model of Age-Related Macular Degeneration Developed
6. Age-Related Macular Degeneration Doubles Heart Attack and Stroke Risk
7. Study Finds Potential Cause of Age-Related Macular Degeneration
8. Age-Related Eye Disease on the Increase
9. Retina Group of New York To Present Seminar on Age-Related Macular Degeneration; The Leading Cause of Visual Loss in Seniors
10. New Alzheimers findings: High stress and genetic risk factor lead to increased memory decline
11. Removing Ovaries Before Menopause Leads to Memory, Movement Troubles
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... HealthDay Reporter , THURSDAY, Sept. 18, 2014 ... antidepressant can quickly alter the way brain cells communicate with ... Sept. 18 in Current Biology , are a ... antidepressants. Experts said the hope is to eventually be able ... from a drug -- and which people would fare better ...
(Date:9/18/2014)... 19, 2014 In 2003, ... Mission (Misión Barrio Adentro), which it hoped ... system (see Section 6.1.3.). In 2009, it ... Autonomous Service of Pharmaceutical Elaborations (Servicio Autónomo ... provides medicines at a cheaper rate than ...
(Date:9/18/2014)... 18, 2014 Ben Quirk, CEO of ... Jr. Leadership Award by the Savannah Science Seminar in ... wellness throughout the nation and especially in Savannah. , ... said Ben. “The Savannah Science Seminar is an amazing ... multiple generations have gone through the program,” he added. ...
(Date:9/18/2014)... convene a one-day conference at the Milken Institute School ... September 25, 2014 to discuss the Global Health Security ... purpose of this event is to invite discussion of ... years, including action plans to curtail the current deadly ... GHSA, international organizations and more than 50 countries have ...
(Date:9/18/2014)... N.C. Dangerous new pathogens such as the Ebola ... ancient scourges such as the bubonic plague are still ... responds to infections. , In a study published online ... researchers at Duke Medicine and Duke-NUS Graduate Medical School ... bubonic plague hitchhike on immune cells in the lymph ...
Breaking Medicine News(10 mins):Health News:One Dose of Antidepressant Changes Brain Connections, Study Says 2Health News:One Dose of Antidepressant Changes Brain Connections, Study Says 3Health News:Venezuela Pharmaceutical Market worth $22.2 billion with 12% CAGR by 2020 Says a New Report Available at MarketOptimizer.org 2Health News:Venezuela Pharmaceutical Market worth $22.2 billion with 12% CAGR by 2020 Says a New Report Available at MarketOptimizer.org 3Health News:Venezuela Pharmaceutical Market worth $22.2 billion with 12% CAGR by 2020 Says a New Report Available at MarketOptimizer.org 4Health News:Quirk Awarded the Alex Ormond, Jr. Leadership Award by the Savannah Science Seminar 2Health News:Non-governmental stakeholders to discuss the Global Health Security Agenda 2Health News:New insights on an ancient plague could improve treatments for infections 2
... Orissa government has ordered administrations of all 30 districts to ... three days.// ,The officials were Thursday asked to ... senior health department official. ,These would then be ... government does not have testing facilities to confirm the presence ...
... safety lawyer, writes about why it is essential for us ... that there is a major defect in the food safety ... people affected or even killed by contaminated food products from ... it prevents our society from knowing the source of our ...
... of NSAID by women in their first trimester could ... ,Non-steroidal anti-inflammatory drugs, NSAIDs, Cardiac septal defects, Journal ... Congenital abnormality, Diabetes ,Women who take non-steroidal ... more likely to give birth to babies with congenital ...
... say that a commonly used HIV drug may be useful ... be used in prevention of the cancer and could be ... and his colleagues said that such a cream could prove ... lesions. However no clinical trials have begun as yet. ...
... hundreds of resident doctors in Delhi who had gone on ... agitation //for the next three months with the reservation bill ... the parliament has referred the reservation bill to the standing ... being. The bill will be placed in the floor of ...
... the University of Pennsylvania have disclosed that a specific ... of changing into bone, muscle, neurons or other// types ... environment. , ,The researchers found that ... bone marrow, are soliciting tangible clues from their local ...
Cached Medicine News:Health News:Importance of knowing the source of our food 2Health News:NSAIDs In First trimester Linked To Congenital Anomalies In Babies 2Health News:Medicos Suspends Anti-quota Stir 2Health News:Adult stem cells are sensitive to responses from the environment 2
(Date:9/18/2014)...  Halozyme Therapeutics, Inc. (NASDAQ: HALO ... Drug Administration (FDA) has removed the clinical hold ... SWOG,s ongoing Phase 1b/2 clinical trial (S1313). The ... PEGPH20 (PEGylated Recombinant Human Hyaluronidase) in combination with ... pancreatic adenocarcinoma.  The study will resume under a ...
(Date:9/18/2014)... , September 18, 2014 After 6 ... community, we,re finally here - the new programme for the ... 2015, part of our global Cool Chain series, has just ... here ! As the lines between supply chain, ... together a programme that is broad and yet specific, focused ...
(Date:9/18/2014)... Mass. , Sept. 18, 2014  Spring ... novel therapeutics for the treatment of RNA viruses, ... Institutes of Health (NIH) for animal testing of ... viral pathogens, classified as "Special Pathogens," against which ... 9200, derived from Spring Bank,s proprietary ...
Breaking Medicine Technology:SWOG To Resume Clinical Trial Of Halozyme's PEGPH20 In Combination With Modified FOLFIRINOX For Advanced Pancreatic Cancer 2SWOG To Resume Clinical Trial Of Halozyme's PEGPH20 In Combination With Modified FOLFIRINOX For Advanced Pancreatic Cancer 3SWOG To Resume Clinical Trial Of Halozyme's PEGPH20 In Combination With Modified FOLFIRINOX For Advanced Pancreatic Cancer 4Europe's Biggest and Longest-Running Gathering of Life Sciences Logistics, Supply Chain & QA Professionals 2Spring Bank Pharmaceuticals Announces NIH Collaboration for Testing of SB 9200 Against Multiple Viral Pathogens 2
... Becomes Squarer, Makes You Look Older, ASPS,Study Reveals, ... giving away your age, and it has nothing to ... in January,s Plastic and,Reconstructive Surgery(R) (PRS), the official medical ... that as we age, the,lower jaw continues to grow, ...
... Inc.,today announced that a paper published in ... reports that SF1126, the company,s lead product,candidate, ... paper, entitled "A Vascular Targeted Pan Phosphoinositide ... Activity," is,based on preclinical studies conducted by ...
Cached Medicine Technology:Looking Older? How Square is Your Jaw Line? 2Semafore's SF1126 Exhibits Antitumor and Antiangiogenic Activity 2
Curved shafts with 4 mm tying platform. Serrated handle with dull finish. Manufactured in titanium. Overall length 3.3 inches....
Straight, 7 mm tying platform. Castroviejo handle. Manufactured in titanium. Overall length 4.2 inches....
Angled Castroviejo handle. Manufactured in titanium. Overall length 4.2 inches....
Straight shafts with 6 mm tying platform. Wide serrated handle with polished finish. Overall length 4.3 inches. Overall length 4.3 inches....
Medicine Products: