Navigation Links
Fear boosts activation of young, immature brain cells
Date:6/14/2011

Fear burns memories into our brain, and new research by University of California, Berkeley, neuroscientists explains how.

Scientists have long known that fear and other highly emotional experiences lead to incredibly strong memories. In a study appearing online today (Tuesday, June 14) in advance of publication in the journal Molecular Psychiatry, UC Berkeley's Daniela Kaufer and colleagues report a new way for emotions to affect memory: The brain's emotional center, the amygdala, induces the hippocampus, a relay hub for memory, to generate new neurons.

In a fearful situation, these newborn neurons get activated by the amygdala and may provide a "blank slate" to strongly imprint the new fearful memory, she said. In evolutionary terms, it means new neurons are likely helping you to remember the lion that nearly killed you.

"We remember emotional events much more strongly than daily experiences, and for a long time we have known that connections between the amygdala and hippocampus help to encode this emotional information," said Kaufer, an assistant professor of integrative biology and a member of UC Berkeley's Wills Neuroscience Institute. "Our research shows that amygdala input actually pushes the hippocampus to make new neurons from a unique population of neural stem cells. This provides completely new cells that get activated in response to emotional input."

The finding has implications for post traumatic stress disorder (PTSD) and other problems caused by faulty regulation of emotional memory.

"Many affective disorders involve disordered emotional memories like PTSD, depression and anxiety. We think that newborn neurons may play a role in creating these emotional memories," she said.

The finding comes a year after brain researcher Fred Gage at the Salk Institute for Biological Studies in La Jolla, Calif., showed that the formation of new memories is associated with increased activation of two
'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. New parallelization technique boosts our ability to model biological systems
2. Sport doctors say non-alcoholic wheat beer boosts athletes health
3. New lignin lite switchgrass boosts biofuel yield by more than one-third
4. Scientists find that evergreen agriculture boosts crop yields
5. Computer-based video analysis boosts data gathering in behavioral studies
6. Mannitol boosts effectiveness of potential cord blood treatment for cerebral palsy in lab animals
7. Less is more when restraining calories boosts immunity
8. Single gene dramatically boosts yield, sweetness in tomato hybrids, CSHL-Israeli study finds
9. Ritalin boosts learning by increasing brain plasticity
10. An apple a day? Study shows soluble fiber boosts immune system
11. World-class protection boosts Australias Great Barrier Reef
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fear boosts activation of young, immature brain cells
(Date:7/25/2014)... the age girls reach puberty is influenced by ,imprinted genes,a ... contributes the gene. This is the first evidence that ... and details of this study were published today in the ... known as menarche, is a marker for the timing of ... of menses varies between girls, is an inherited trait, and ...
(Date:7/24/2014)... YORK, NY (July 24, 2014) Scientists at ... Institute are one step closer to creating a ... a patient,s own cells. , For the ... (iPS) cells lines from skin samples of patients ... developed an accelerated protocol to induce these stem ...
(Date:7/24/2014)... the use of native animal species for food or ... a significant factor in the decline of many species ... study indicates that more than half of the species ... and hornbills., "By surveying not only the meat made ... eaten inside the forest by hunters and brought to ...
Breaking Biology News(10 mins):Could age of first period influence development of diseases in older women? 2NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2
... SEATTLE Harmit Singh Malik, Ph.D., an evolutionary ... the 2010 Vilcek Prize for Creative Promise in Biomedical ... cash prize, for his research on the co-evolution of ... "immigrant achievement in biomedical science and arts." Malik was ...
... to our understanding of the complex chain of chemistry that ... University of Vermont (UVM), the University of Utah, Vanderbilt University ... demonstrated for the first time the specific activity of the ... integrity of DNA in humans and other mammals. Their work ...
... the sun were easy, we wouldn,t still have the greenhouse ... And while solar energy systems work moderately well in hot ... small percentage of the general energy demand. A new ... source that may be on your dinner plate tonight. ...
Cached Biology News:Dr. Harmit Malik receives Vilcek Prize for creative promise in biomedical science 2Mouse work: New insights on a fundamental DNA repair mechanism 2A new energy source from the common pea 2
(Date:7/25/2014)... of bacteria live in each person,s digestive tract. Scientists ... and stave off harmful infections, but their role in ... shed light on the role of these bacteria, a ... Alm recently tracked fluctuations in the bacterial populations of ... described in the July 25 issue of the journal ...
(Date:7/25/2014)... Albany, New York (PRWEB) July 25, 2014 ... Transparency Market Research, "Biological Drugs Market - Global Industry ... 2020," the global biological drugs market is estimated at ... grow at a CAGR of 10.1% from 2014 to ... million in 2020. , The biological drugs market is ...
(Date:7/25/2014)... July 25, 2014 Lawrence Livermore scientists ... Thomson Reuters list of " The World's Most Influential ... of the 3,000 researchers who were identified by analyzing ... those who published the highest-impact work (2002-2012 and 2012-2013). ... on combustion modeling . , "This recognition is ...
(Date:7/25/2014)... At the request of the AMA, the ... for the public comment period (Docket No. FAA-2014-0396) for ... established by Congress as part of the FAA Modernization ... the new deadline for comments as September 23, 2014. ... published in the Federal Register on July 25, 2014, ...
Breaking Biology Technology:Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 2Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 3Scientists Burst onto Influential List for Combustion Research 2Scientists Burst onto Influential List for Combustion Research 3Scientists Burst onto Influential List for Combustion Research 4FAA Grants Comment Extension at the Request of AMA 2
... Blocks of carbon nanotubes can be used to create ... study by researchers at Rensselaer Polytechnic Institute. , Taking ... researchers repeatedly squeezed a 3-millimeter nanotube block and discovered ... pressure sensor. No matter how many times or how ...
... Systems, Inc. (Sparta),the maker of TrackWise(R), and the ... announced that its TrackWise solution has,been chosen by ... development, manufacturing and marketing of specialized products for,critical ... complaint handling,processes. TrackWise provides organizations with a ...
... Human Genome,Sciences, Inc. (Nasdaq: HGSI ) today ... its financial results for the quarter ended,September 30, 2007. ... 1, 2007. (Logo: http://www.newscom.com/cgi-bin/prnh/20010612/HGSLOGO ) The ... will be,held on Thursday, November 1, 2007, at 11:00 ...
Cached Biology Technology:The sensitive side of carbon nanotubes: Creating powerful pressure sensors 2The sensitive side of carbon nanotubes: Creating powerful pressure sensors 3Protherics UK Ltd. Chooses TrackWise for Corrective Action and Preventive Action (CAPA) Management 2Human Genome Sciences To Sponsor Conference Call To Discuss Third Quarter 2007 Financial Results 2
cysteine and glycine-rich protein 2,...
... pan B (B220), 4.5 m, coated ... efficient positive isolation or depletion of ... or lymph node cell suspensions. B220 ... cells and lytically active subsets of ...
Gap junction protein, beta 2, 26kDa (connexin 26) Antigen: Peptide...
NAP-2 (5C7)...
Biology Products: