Navigation Links
New research shows why too much memory may be a bad thing

New research from Columbia University Medical Center may explain why people who are able to easily and accurately recall historical dates or long-ago events, may have a harder time with word recall or remembering the day’s current events. They may have too much memory ?making it harder to filter out information and increasing the time it takes for new short-term memories to be processed and stored.

Published in the Proceedings of the National Academy of Sciences (March 13, 2007 issue), the research reinforces the old adage that too much of anything ?even something good for you ?can actually be detrimental. In this case, the good thing is the growth of new neurons, a process called neurogenesis, in the hippocampus, the region of the brain responsible for learning and memory.

Results of the study, conducted with mice, found that the absence of neurogenesis in the hippocampus improves working memory, a specific form of short-term memory that relates to the ability to store task-specific information for a limited timeframe, e.g., where your car is parked in a huge mall lot or remembering a phone number for few seconds before writing it down. Because working memory is highly sensitive to interference from information previously stored in memory, forgetting such information may therefore be necessary for performing everyday working memory tasks, such as balancing your check book or decision making.

"We were surprised to find that halting neurogenesis caused an improvement of working memory, which suggests that too much memory is not always a good thing, and that forgetting is important for normal cognition and behavior," said Gaël Malleret, Ph.D., a research scientist at the Center for Neurobiology and Behavior at Columbia University Medical Center and the paper’s co-first author. "Altogether, our findings suggest that new neurons in the hippocampus have different, and in some cases, opposite roles in distinct types of memory storage, and that e
'"/>

Source:Columbia University Medical Center


Page: 1 2

Related biology news :

1. Columbia research lifts major hurdle to gene therapy for cancer
2. U of M researcher examines newly emerging deadly disease
3. NYU researchers simulate molecular biological clock
4. First atlas of key brain genes could speed research on cancer, neurological diseases
5. New research questions basic tenet of neuron function
6. Vital step in cellular migration described by UCSD medical researchers
7. ASU researchers finds novel chemistry at work to provide parrots vibrant red colors
8. UCSD researchers maintain stem cells without contaminated animal feeder layers
9. Why do insects stop breathing? To avoid damage from too much oxygen, say researchers
10. New protein discovered by Hebrew University researchers
11. First real-time view of developing neurons reveals surprises, say Stanford researchers
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New research shows why too much memory may bad thing

(Date:9/18/2014)... matter how many times it,s demonstrated, it,s still ... , But by using a signaling system ... their behavior to suit their population. In short, ... present, and act accordingly. , Once the population ... change from innocuous to pathogenic, or from unhelpful ...
(Date:9/18/2014)... have built the first smartphone app that automatically ... trends. In other words, your smartphone knows your ... -- and how that affects you. , The ... and loneliness to their academic performance, also may ... example, to monitor mental health, trigger intervention and ...
(Date:9/18/2014)... disciplines will be celebrated tonight at the third annual ... the health of premature infants and in paving the ... whose work was supported by the National Science Foundation, ... Energy Commission, will be honored at a ceremony at ... group of Members of Congress will be on hand ...
Breaking Biology News(10 mins):Researchers study vital 'on/off switches' that control when bacteria turn deadly 2Researchers study vital 'on/off switches' that control when bacteria turn deadly 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 2New Dartmouth smartphone app reveals users' mental health, performance, behavior 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 43rd annual Golden Goose award ceremony honors 8 researchers; Unusual work had big results 2
... Many baffled parents have wondered whether their teenagers would ... have never really quite understood just how an organism ... growth should cease. , Now University of Washington biologists ... fly, have discovered an organ that assesses the size ...
... biochemistry and metabolism of disease-causing organisms. The new ... than the 4 traditional Kingdoms. , Here ... causing mortality in AIDS patients and immunocompromised individuals, ... a different treatment regimen is needed. 2) Phytophtora, ...
... grows in the soil of potato fields can -- in ... powerful pesticide used for killing worms on potatoes, researchers have ... for the environment because University of North Carolina at Chapel ... weren't there, it would take 10,000 years for just half ...
Cached Biology News:Researchers find gland that tells fruit flies when to stop growing 2Researchers find gland that tells fruit flies when to stop growing 3New classification of eukaryotes has implications for AIDS treatment, agriculture and beyond 2New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia 2New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia 3
(Date:9/19/2014)... Chips that use light, rather than electricity, to ... and energy efficiency is a growing concern as ... chief components of optical circuits light emitters, ... to build. One promising light source for optical ... optical properties when deposited as a single, atom-thick ...
(Date:9/19/2014)... YORK , Sept. 19, 2014  An entire ... forms of inherited neuropathies – Charcot-Marie-Tooth disease (CMT) – ... and legs, causing extreme muscle atrophy, weakness, and foot ... the US and millions worldwide. CMT is a progressive ... of their legs, requiring mobility devices such as leg ...
(Date:9/19/2014)... 19, 2014  Nektar Therapeutics (NASDAQ: ... characterizing the analgesic profiles of a series of ... agonist molecules. The preclinical research candidates were created ... The analgesic properties of kappa receptor ... 1,2 Kappa opioid receptors are expressed in ...
(Date:9/19/2014)... CORAL SPRINGS, Florida , September 19, 2014 /PRNewswire/ ... biotech companies release latest developments, patents and results of ... (OTC: GNSZ), Eli Lilly and Company (NYSE: ... ), Celgene Corporation (NASDAQ: CELG ) and ... (OTCQB: GNSZ), a leader in developing prodrug therapeutics for ...
Breaking Biology Technology:Toward optical chips 2Toward optical chips 3September is Charcot-Marie-Tooth (CMT) Awareness Month - Scheduled events, activities and important partnerships announced throughout the month! 2Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 2Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 3Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 4Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 3Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 4Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 6Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 7
, , Daniel G. Flowers and Lloyd A. Culp, Ph.D., , , , back to top...
... Inc., 2000 Alfred Nobel Drive,Hercules, CA 94547, ... Capillary sequencing technology has altered the field of genomics, ... process. This high-throughput , platform has become ... achievements as the completion of the Human Genome Project. , ...
... Richard Hastings, Jon Saunders and Alan McCarthy ... Liverpool, Liverpool, UK, , Introduction ... firmly focused on the genotypic analysis of naturally-occurring , ... techniques that enable amplification and sequencing of DNA extracted ...
Cached Biology Technology:Comparison of Commercial Dye Terminator Removal Kits, Rev A 2Comparison of Commercial Dye Terminator Removal Kits, Rev A 3Comparison of Commercial Dye Terminator Removal Kits, Rev A 4Comparison of Commercial Dye Terminator Removal Kits, Rev A 5Monitoring Bacterial Genetic Diversity in a Freshwater Lake Using TTGE and DNA Sequence Analysis 2Monitoring Bacterial Genetic Diversity in a Freshwater Lake Using TTGE and DNA Sequence Analysis 3Monitoring Bacterial Genetic Diversity in a Freshwater Lake Using TTGE and DNA Sequence Analysis 4
Plasmid expressing the LacZ reporter gene....
Human SEAP ORF, provided in a pORF plasmid. pORF is an expression plasmid selectable with Ampicillin....
... 2800mL PYREX Fernbach-style culture flasks have triple ... flask bottom to achieve maximal oxygen transfer ... large marking spot., A wide range of ... including:, Polypropylene colored caps for ease ...
... of purified RNA samples., , This product ... aqueous RNA samples that have been pre-purified ... silica, oligo dT etc or other kits. ... necessary components for the stabilization of nanogram ...
Biology Products: