Navigation Links
Lifelong memories linked to stable nerve connections
Date:12/3/2009

a two-photon microscope, they snapped photos of the dendrites after the animals learned to stay on the running wheel or encountered the newly positioned beads. The team began photographing the mice when they were a month old and followed them through adulthood.

When the team compared the photos across the months, they observed new spines emerging in response to the beads' placement or learning to run on the wheel. They saw, too, that as the mice became improved at spinning the wheel, a minute fraction of new spines continued to persist. The researchers also noted that at the same time as these new and lasting spines were created, a corresponding number of older spines that had been formed early in the animals' development before the experiment began, disappeared.

Despite the rise and fall of dendritic spines, the animals' brain circuitry remained overwhelmingly secure. A mouse neuron can carry ten thousand spines on its dendrites. Over months, only tens of spines were either gained or lost on each nerve cell after exposure to new experience while the majority of existing spines are maintained.

The study gives a clue as to how it is possible for humans, who have hundreds of thousands of spines on one neuron, to live each day, constantly experiencing and learning new things, without losing existing memories. "The brain is a dynamic and stable organ," says Dr. Gan.


'/>"/>

Contact: Dorie Klissas
dorie.klissas@nyumc.org
212-404-3555
NYU Langone Medical Center / New York University School of Medicine
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Abuse of painkillers can predispose adolescents to lifelong addiction
2. Siblings of mentally disabled face own lifelong challenges, according to researchers
3. Memory molecule stores memories in neocortex
4. Tracking feline memories on the move
5. Genetic tags reveal secrets of memories staying power in mice
6. CSHL scientists identify a mechanism that helps fruit flies lock-in memories
7. Scientists find elephant memories may hold key to survival
8. Erasing drug-associated memories may stop drug addiction relapses
9. Emotion and scent create lasting memories -- even in a sleeping brain
10. SUNY Downstate researchers find that memory storage molecule preserves complex memories
11. Mollusks taste memories to build shells
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Lifelong memories linked to stable nerve connections
(Date:4/17/2015)... Increasing adoption in ... to drive biometric systems market in ... According to a recently released TechSci Research ... biometric systems market in Saudi Arabia ... CAGR of over 22% through 2020. The market ...
(Date:4/13/2015)... , April 13, 2015 ... TechSci Research, "Global Biometrics Market Forecast & Opportunities, 2020", ... a CAGR of around 14% till 2020. The ... for large scale implementation and review of biometric ... launch of new products with greater efficiency, are ...
(Date:4/9/2015)... 9, 2015 Synaptics Inc. (NASDAQ: SYNA ), ... that it will report financial results for the third ... after the close of market. The company will host ... 2:00 p.m. PT (5:00 p.m. ET), during which management ... on the live call, analysts and investors should dial ...
Breaking Biology News(10 mins):Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2Synaptics to Report Third Quarter Results on April 23 2
... grain production must double by 2050 to address rising ... Illinois suggests crop yields will suffer unless new approaches ... Improved agronomic traits responsible for the remarkable increases in ... their ceiling for some of the world,s most important ...
... Ind. - Chemical engineers at Purdue University have developed ... biomass into biofuels, and they are proposing the creation ... to produce the fuels. "What,s important is ... -- wood chips, switch grass, corn stover, rice ...
... LAFAYETTE, Ind. - A Purdue University researcher can better retrieve ... using a newly developed technique and synthetic nanopolymer. W. ... be mapped and analyzed to find ways to inhibit the ... must be fished out of a sea of thousands of ...
Cached Biology News:'Business as usual' crop development won't satisfy future demand 2'Business as usual' crop development won't satisfy future demand 3New biofuels processing method for mobile facilities 2New biofuels processing method for mobile facilities 3New retrieval method makes studying cancer proteins easier 2
(Date:5/29/2015)...  Caris Life Sciences ® , a leading ... precision medicine, today announced the presentation of data ... of Caris Molecular Intelligence ® , the company,s ... identify targeted treatment options for patients with rare ... results of which are to be presented in ...
(Date:5/29/2015)... (PRWEB) May 29, 2015 Translation is frequently ... is for a good reason--if used in a way that ... the offering of a business product or service offering. ... can have a positive effect on a company's bottom line: ... that anyone in the world can use, why not offer ...
(Date:5/28/2015)... DUBLIN , May 27, 2015 /PRNewswire/ ... announced the addition of Jain PharmaBiotech,s new ... to their offering. An ... and biotechnology industries is anticipated. Nanotechnology will ... development - from formulations for optimal delivery ...
(Date:5/28/2015)... N.J. , May 28, 2015 Celsion ... that it has received commitments from two institutional healthcare ... of the Company,s common stock in an at-the-market registered ... to purchase common stock. The Company entered ... to which the Company agreed to sell an aggregate ...
Breaking Biology Technology:Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 2Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 3Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 4Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 5Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 6Three Ways Translation Can Help Businesses Grow 2Global Nanobiotechnology Market 2015-2024 - Applications, Markets and Companies 2Global Nanobiotechnology Market 2015-2024 - Applications, Markets and Companies 3Celsion Corporation Announces $8 Million At-The-Market Registered Direct Offering 2Celsion Corporation Announces $8 Million At-The-Market Registered Direct Offering 3
... to Provide Update on Pipeline Efforts at 27th Annual ... Genomic Health, Inc. (Nasdaq: GHDX ) ... validation study for its 18-gene Oncotype DX(R) colon cancer ... the landmark QUASAR trial, the validation study will use ...
... Achieved A Year Ahead of Schedule , ... Sangamo BioSciences, Inc. (Nasdaq: SGMO ) today ... as part of its agreement with Sigma-Aldrich Corporation (Nasdaq: ... reagents (ZFNs) for research applications. The milestone triggers a ...
... 12 /PRNewswire-Asia/ -- Simcere Pharmaceutical Group,(NYSE: ... branded generic,pharmaceuticals and manufacturer of the patented anti-cancer ... today announced preliminary revenue,and earnings for the full ... Based upon preliminary data for the fourth quarter, ...
Cached Biology Technology:Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 2Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 3Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 4Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 5Sigma-Aldrich and Sangamo BioSciences Announce the Achievement of Key Throughput Milestone in Research Reagents Agreement 2Sigma-Aldrich and Sangamo BioSciences Announce the Achievement of Key Throughput Milestone in Research Reagents Agreement 3Sigma-Aldrich and Sangamo BioSciences Announce the Achievement of Key Throughput Milestone in Research Reagents Agreement 4Simcere Pharmaceutical Group Announces Preliminary Full Year Revenue and Earnings 2
... Fernbach-style culture flasks have triple baffles located ... to achieve maximal oxygen transfer to culture ... spot., A wide range of optional caps ... Polypropylene colored caps for ease of sorting ...
... 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 ...
...
... wide mouth PYREX Fernbach-style culture flasks have ... the flask bottom to achieve maximal oxygen ... flasks have a Delong-style 38mm neck for ... For plastic closures see Nos. CLS2679638 or ...
Biology Products: