Navigation Links
Tracking the memory trace

Memory formation follows a dynamic pattern, allowing for retrieval from different areas of the brain, depending on when an organism needs to remember, said a researcher at Baylor College of Medicine.

That is what Dr. Ron L. Davis, professor of molecular and cellular biology at BCM, theorizes, based on his most recent report on the topic that finds a memory trace in Drosophila or fruit flies is formed in a pair of neurons called the dorsal pair medial neurons, but only 30 minutes after the fact and only through the mediation of a gene called, ironically, amnesiac. (A memory trace is a chemical change in tissue that represents the formation of a memory.) The study appears in the current issue of the journal Cell.

Davis and his colleagues were one of the first to actually record a memory trace being formed. That one was first stored in the insect's antennal lobe (where odors are processed). The flies are trained to associate an odor with an electric shock. The change in these neurons was immediate, but lasted only five to seven minutes.

In the more recent report involving the DPM neurons, the change can be seen 30 minutes after the formation of the memory, but it lasts about two hours.

"The other intriguing thing we don't understand is that this occurs only in one branch of the DPM neuron," said Davis. "Our impression now is that maybe what guides the behavior after training in the first few minutes is the antennal lobe. That is the important part that guides behavior for the small window of time after training. The DPM neurons have that role from 30 minutes to two hours."

The finding belies the commonly held precept that a memory is formed in the same way that data are stored in a computer ?always in the same place.

"It's not as if we are forming memories that are then being written to a "hard disk" area of the brain, and it's there and recalled from the same location at any time after learning," said Davis. "We now t
'"/>

Source:Baylor College of Medicine


Page: 1 2

Related biology news :

1. New Technique for Tracking Gene Regulators
2. Tracking sperm whales and jumbo squid
3. Rats infected as newborns grew up vulnerable to memory problems during an immune challenge
4. Structure-building cell signals also may influence learning and memory
5. Mice brains shrink during winter, impairing some learning and memory
6. Montreal researchers probe the genetic basis of memory
7. U of MN researchers reverse memory loss in mice
8. Researchers know what you were about to say; fMRI used to detect memory storage and retrieval
9. Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace
10. Learning and memory stimulated by gut hormone
11. Mechanism for memory revealed in neurons of electric fish
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Tracking the memory trace

(Date:4/14/2014)... scientists are continuing to unravel the molecular changes that ... respiratory infections. , When the bacterium Yersinia pestis enters ... is 100 percent fatal if untreated. The way in ... and kills people in a matter of days has ... study demonstrating that the presence of a protein called ...
(Date:4/14/2014)... WEST LAFAYETTE, Ind. - High levels of the greenhouse ... a production point not thought to be an important ... Purdue and Cornell universities. The findings could have implications ... gas production. , The study, which is one of ... approach that measures methane gas levels in the air ...
(Date:4/14/2014)... Kisailus, the Winston Chung Endowed Chair of Energy ... College of Engineering, has been named a Kavli ... by the advisory board of the Kavli Foundation, ... organizers of the Kavli/National Academy of Sciences Frontiers ... is based in Oxnard, supports scientific research, honors ...
Breaking Biology News(10 mins):Plague alters cell death to kill host 2'Problem wells' source of greenhouse gas at unexpected stage of natural gas production 2Professor receives young scientist honor 2
... Medical mycologists in The South Texas Center for Emerging ... The University of Texas at San Antonio (UTSA) have ... a respiratory infection of humans, commonly called Valley Fever, ... For the first time, the researchers have genetically ...
... Survey have collected individuals from a wide range of species ... levels of water temperature to learn how each species is ... to experience in the future. The study showed that several ... upper temperature range, and that further increases caused by global ...
... LAFAYETTE, Ind. - Catching adult eagles for research purposes is ... a way around the problem, and, in the process, gathered ... hand on one. "Many birds are small, easy to ... and natural resources. "With eagles, the effort can be 100 ...
Cached Biology News:UTSA infectious disease researchers advancing vaccine against Valley fever 2Scientists are learning more about big birds from feathers 2
(Date:1/15/2014)... January 15, 2014 This webinar ... on nonclinical and clinical safety assessment in biosimilars. ... guide a path for biosimilar drug development, however ... of biosimilarity with regards to quality, safety and ... of biosimilar drug development and registration, development strategies ...
(Date:1/15/2014)... NC (PRWEB) January 15, 2014 ... an enhancement to its Online Web Portal for Life ... now have the ability to specify the subject matter ... nearly 50 life science sub-domains. This will help reduce ... and scientific fields, and decrease the likelihood of error. ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 ... – 11 p.m. , Location: Warrington Country Club, 1360 ... Hepatitis B Foundation, the only national nonprofit organization solely ... improving the quality of life for those affected worldwide, ... 11 at Warrington Country Club in Warrington, Pa. ...
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... initiated coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua ... and marketing proprietary products to serve the wound ... , In late 2012, Alliqua was restructured ... launched the company’s new strategy to become a ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2DTS Improves Efficiency for Life Science Document Translations 2Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... body, then alarm bells start ringing. Such clumps, ... type 2 diabetes, formerly called adult-onset diabetes. If ... might be able to treat such diseases more efficiently. ... the Helmholtz-Zentrum Dresden-Rossendorf and the university in Aarhus, Denmark, ...
... The Plasma Protein Therapeutics Association (PPTA) applauds the ... Drugs Act ( H.R. 2672 ) and ( S. ... therapies that treat patients with rare diseases by eliminating barriers ... on plasma protein therapies are coping with a very rare ...
... (NASDAQ: GPRO ) today reported financial results for ... million and non-GAAP earnings per share (EPS) of $0.51.   ... products in the second quarter of 2011, while supply chain ... sales a year ago," said Carl Hull, the Company,s president ...
Cached Biology Technology:In the pursuit of dangerous clumps 2In the pursuit of dangerous clumps 3PPTA Praises Legislation That Protects the Treatment of Rare Diseases 2Gen-Probe Reports Financial Results for the Second Quarter of 2011 2Gen-Probe Reports Financial Results for the Second Quarter of 2011 3Gen-Probe Reports Financial Results for the Second Quarter of 2011 4Gen-Probe Reports Financial Results for the Second Quarter of 2011 5Gen-Probe Reports Financial Results for the Second Quarter of 2011 6Gen-Probe Reports Financial Results for the Second Quarter of 2011 7Gen-Probe Reports Financial Results for the Second Quarter of 2011 8Gen-Probe Reports Financial Results for the Second Quarter of 2011 9Gen-Probe Reports Financial Results for the Second Quarter of 2011 10Gen-Probe Reports Financial Results for the Second Quarter of 2011 11Gen-Probe Reports Financial Results for the Second Quarter of 2011 12Gen-Probe Reports Financial Results for the Second Quarter of 2011 13Gen-Probe Reports Financial Results for the Second Quarter of 2011 14
... strains are K-12 derivatives that have mutations ... glutathione reductase (gor) genes, which greatly enhances ... have shown that expression in Origami(DE3) yielded ... host even though overall expression levels were ...
Recommend to use at 1000X dilutions for cell culture (e.g. Add 1 ul to 1 ml of culture medium.)...
... Cy3 Ab Labeling Kit, 1 kit. ... CyDye fluorescent dyes. Conjugations are carried ... within 1 h. Dyes are packaged ... ensure consistent labelings. Category: Blotting & ...
Recombinant Human Erythropoietin (Tissue Culture Grade)...
Biology Products: