Navigation Links
What are you scared of?
Date:11/11/2013

What do bullies and sex have in common? Based on work by scientists at the European Molecular Biology Laboratory (EMBL) in Monterotondo, Italy, it seems that the same part of the brain reacts to both. In a study published today in Nature Neuroscience, the researchers found that at least in mice different types of fear are processed by different groups of neurons, even if the animals act out those fears in the same way. The findings could have implications for addressing phobias and panic attacks in humans.

"We found that there seems to be a circuit for handling fear of predators which has been described anatomically as a kind of defence circuit but fear of members of the same species uses the reproductive circuit instead," says Bianca Silva, who carried out the work, "and fear of pain goes through yet another part of the brain."

Working in the lab of Cornelius Gross at EMBL, Silva exposed mice to three threats: another mouse (chosen for being particularly aggressive), a rat (the mouse's natural predator) or a mild electric shock to the feet. The mice showed the same typical fearful behaviours running away, freezing in response to all threats, but their brains painted a different picture. When the scientists mapped the brain activity of mice exposed to the aggressive mouse and the rat , they saw that different parts of a region called the ventromedial hypothalamus (VMH) 'lit up' depending on the threat. Fear of the mouse seemed to activate the bottom and sides of the VMH, while fear of the rat seemed to be processed by the VMH's central and upper areas. This was confirmed when the scientists used drugs to block only the neurons in those 'rat fear' areas: mice were no longer afraid of the rat, but were still afraid of the mouse, showing that mice need this brain circuit specifically to process fear of predators.

The human brain has similar circuits, and we too experience different kinds of fear, so the results hint at the
'/>"/>

Contact: Sonia Furtado Neves
sonia.furtado@embl.de
European Molecular Biology Laboratory
Source:Eurekalert  

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
What are you scared of?
(Date:12/24/2014)...  Since its launch in December 2014, the ... eliminate the pain of trying to remember their usernames ... own biometrics fused to their smartphones. To assist people ... Hoyos Labs , the company that created 1U and ... offering the app for free. 1U is ...
(Date:12/22/2014)... 2014  NXT-ID, Inc. (NASDAQ: NXTD ... company focused on the growing mobile commerce market, announces ... Apollo Robbins for the 2015 International CES ... Apollo Robbins will be at the ... demonstrating some of his famous theft techniques to visiting ...
(Date:12/22/2014)... 22, 2014 Research and Markets ... addition of the "The Global Watermarking ... offering. http://photos.prnewswire.com/prnh/20130307/600769 ... overview of the global digital media watermarking ... and monitor piracy by securely and invisibly ...
Breaking Biology News(10 mins):1U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4The Global Watermarking and Fingerprinting Markets 2
... in a recently discovered gene is the most ... The discovery by an,international research team provides fresh ... some cases of Parkinson's disease. The,findings could lead ... detect the,mutation in individuals at risk. The research ...
... For,everyone doing or reading a paper about microarray-based experiments,reproductibility, ... results? If I redo the same experiment in one ... recently demonstrated that microarrays experiments performed in different ... reproducibility , as long as standardized protocols are carefully ...
... present a “cautionary tale?about what may go wrong when using ... for cancer. , In the February 16 issue of the ... of Texas M. D. Anderson Cancer Center detail why an ... small sample of blood is unlikely to lead to a ...
Cached Biology News:Scientists detect probable genetic cause of some Parkinson's disease cases 2Scientists detect probable genetic cause of some Parkinson's disease cases 3Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible 2Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible 3New species from old data 2New species from old data 3
(Date:12/24/2014)... 24, 2014 The report expects global ... by 2019. It also provides a carefully analyzed data ... challenges for the market. , Full Copy of Report ... the global market for cell expansion will keep witnessing ... expects this growth to be driven by rapid technological ...
(Date:12/24/2014)... 23, 2014 China Biologic Products, Inc. ... leading fully integrated plasma-based biopharmaceutical company in ... majority-owned subsidiary, Shandong Taibang Biological Products Co. Ltd., ... the China Food and Drug Administration (the "CFDA") ... previously disclosed in the Company,s public filings, the ...
(Date:12/24/2014)... , December 23, 2014 ... Algeria , out today and available for free download ... actors driving change and growth in the sector today. ... scored notable successes has been in developing a homegrown pharmaceutical ... percent local production still remains some way off. A cursory ...
(Date:12/24/2014)... Fla. , Dec. 23, 2014  Rock Creek ... that it has filed a Clinical Trial Application (CTA) ... Healthcare products Regulatory Agency (MHRA) seeking regulatory approval to ... lead molecule, Anatabine Citrate. Contingent on the ... conduct a Phase I trial to assess the safety, ...
Breaking Biology Technology:The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 2The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 3China Biologic Receives GMP Certification for New Coagulation Factor Facility 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 3PharmaBoardroom Releases New Algeria Pharmaceuticals Report 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 3Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3
... of the Midwest large cap life science group of companies in the ... half of 2005. , ,The message was that the major indices were ... of the Amex Biotech index. In spite of this general market malaise, ... , , , ,For this week, its time to take ...
... Madison, Wis. - One of Wisconsin's neighbors has ... that could bolster similar research in Wisconsin. , ,Illinois ... devote $10 million in state funds to support stem ... to offer public dollars for stem cell research after ...
... Wis. - TDS Telecommunications Corp. outperformed all regional ... of overall customer satisfaction, the company reported Tuesday. , ... Customer Satisfaction Study represent a combined score of ... local exchange carriers, respectively. , ,TDS's growth and ...
Cached Biology Technology:Midwest biotech stocks receive hefty haircut in first half of 2005 2Illinois stem cell funding could aid issue's visibility 2
The 12-Tube Magnetic Separation Rack is designed to be used for small-scale separations using magnetic particles. ,Capacity: 12 microcentrifuge tubes. ,Magnets: Neodymium rare earth permanent ma...
Certified U.S. origin. Bovine Serum:, *Certified U.S. origin. Available raw, nonsterile filtered, or sterile filtered. , , *Sterility tested , , *Low Hemoglobin levels , , *Mycoplasma testing upon...
...
12(S)-HETE-d8 is used as an internal standard for the quantification of 12(S)-HETE by stable isotope dilution mass spectrometry....
Biology Products: