Navigation Links
Losing money, emotions and evolution
Date:6/12/2012

Financial loss can lead to irrational behavior. Now, research by Weizmann Institute scientists reveals that the effects of loss go even deeper: Loss can compromise our early perception and interfere with our grasp of the true situation. The findings, which recently appeared in the Journal of Neuroscience, may also have implications for our understanding of the neurological mechanisms underlying post-traumatic stress disorder.

The experiment was conducted by Dr. Rony Paz and research student Offir Laufer of the Neurobiology Department. Subjects underwent a learning process based on classic conditioning and involving money. They were asked to listen to a series of tones composed of three different notes. After hearing one note, they were told they had earned a certain sum; after a second note, they were informed that they had lost some of their money; and a third note was followed by the message that their bankroll would remain the same. According to the findings, when a note was tied to gain, or at least to no loss, the subjects improved over time in a learned task distinguishing that note from other, similar notes. But when they heard the "lose money" note, they actually got worse at telling one from the other.

Functional MRI (fMRI) scans of the brain areas involved in the learning process revealed an emotional aspect: The amygdala, which is tied to emotions and reward, was strongly involved. The researchers also noted activity in another area in the front of the brain, which functions to moderate the emotional response. Subjects who exhibited stronger activity in this area showed less of a drop in their abilities to distinguish between tones.

Paz: "The evolutionary origins of that blurring of our ability to discriminate are positive: If the best response to the growl of a lion is to run quickly, it would be counterproductive to distinguish between different pitches of growl. Any similar sound should make us flee without think
'/>"/>

Contact: Yivsam Azgad
news@weizmann.ac.il
972-893-43856
Weizmann Institute of Science
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Diabetes Can Take a Toll on Your Emotions
2. New Clues to the Evolution of the Human Brain
3. Evolution May Explain Runners High, Study Says
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... (Boston) Emergency Medical Service (EMS) responders felt better ... receiving focused tactical training according to a new study ... This is the first study to specifically examine the ... scene where a shooter has not yet been neutralized ... , Incidents such as the Columbine High School shooting, ...
(Date:7/10/2014)... baby" an infant seemingly cured of HIV that was reported ... infection in The New England Journal of Medicine ... two years of not taking antiretroviral therapy without evidence of ... in the case. , "Certainly, this is a ... staff involved in the child,s care, and the HIV/AIDS research ...
(Date:7/10/2014)... of Huddersfield could help to improve the quality of ... such as butter, mayonnaise, yoghurt and fruit drinks ... for her work. , Katerina gained her MSc degree ... now she has embarked on research for a PhD. ... is investigating the potential of carbohydrates extracted from the ...
(Date:7/10/2014)... men with localized prostate cancer were more likely ... received less effective treatments and survived for shorter ... depressed, a UCLA study has found. , The ... factors such as bias against the mentally ill, ... man,s lack of investment in his general health ...
(Date:7/9/2014)... DC (July 10, 2014) If you think winning is ... for kids think again: Winning along with other mental bonuses ... of which falls into one of 11 big fun factors, ... winning is all important when it comes to the "fun" ... and quantify what goes into this elusive conceptuntil now. , ...
Breaking Medicine News(10 mins):Health News:Active shooter training increases comfort level of emergency responders 2Health News:'Mississippi Baby' now has detectable HIV, researchers find 2Health News:'Mississippi Baby' now has detectable HIV, researchers find 3Health News:World interest in research work on the benefits of the Okra plant 2Health News:Depressed men with prostate cancer are diagnosed later stage, get less effective therapies 2Health News:Being a good sport ranks as the top 'fun' factor in study of youth sports 2Health News:Being a good sport ranks as the top 'fun' factor in study of youth sports 3
... line of defence in the threat of bio-terrorism according to ... international team of researchers from Cardiff University and University of ... well be an antidote to Bacillus anthracis more commonly know ... currently drink 165 million cups of tea, and the healing ...
... at Henry Ford Hospital today announced the start of ... international, multi-center clinical trial to explore an investigational treatment ... suffering with advanced emphysema. The study focuses on a ... in the lung for trapped air (one of the ...
... This release is available in French . ... by Universit Laval scientist Marc-Andr Sirard has identified genetic ... best chance of leading to successful pregnancy after in ... success rate of single embryo transfer and diminish the ...
... Angeles, March 12 --Combined positron emission tomography (PET) and ... more effective method to evaluate response to radiation therapy, ... study by researchers at the University of Southern California ... be published in the March issue of the journal ...
... and obesity training, state,s,largest Medicaid managed care plan now ... provide medical professionals the opportunity to become ... Well, Live Well program, CHARLESTON, W.Va., March 12 ... in the country in asthma prevalence,UniCare Health Plan of ...
... TSTF ) a national provider of healthcare and ... the Nasdaq Stock,Market that the Nasdaq Hearings Panel has ... Global Market pending the effectiveness of the,Company,s proposed reverse ... on February 7, 2008. The decision of the Panel ...
Cached Medicine News:Health News:Is a cup of tea really the answer to everything -- even anthrax? 2Health News:Henry Ford Hospital to study effectiveness of a new procedure that may help emphysema suffers 2Health News:Researchers develop a method to select eggs with the best chance of leading to successful pregnancy 2Health News:USC researchers find benefit for lymphoma patients in combined PET-CT scanning 2Health News:UniCare of West Virginia Providing Assistance for Asthma Education Training 2Health News:UniCare of West Virginia Providing Assistance for Asthma Education Training 3Health News:Nasdaq Hearings Panel Grants TeamStaff's Request for Continued Listing Subject to a Reverse Stock Split 2Health News:Nasdaq Hearings Panel Grants TeamStaff's Request for Continued Listing Subject to a Reverse Stock Split 3
(Date:1/15/2014)... the leading health care supply chain expertise, analytics and ... national contracts that expand its portfolio to provide hospital ... These include manufacturer product and service agreements, as well ... IT consulting support. New Novation agreements ...
(Date:1/15/2014)... , January 15, 2014 Shire plc (LSE: SHP, ... Office of Fair Trading (OFT) approval condition to the announced tender ... VPHM).   As a result of the waiver, the ... to complete the tender offer on January 24, 2014 following the ...
(Date:1/15/2014)... , Jan. 15, 2014  Manufacturers, suppliers and distributors ... able to protect their most important business assets, ... ) Because of the highly-competitive ... remains one of the most litigious industry sectors ...
Breaking Medicine Technology:New Novation Information Technology VAR Contracts Offer Significant Savings to Hospitals 2Shire Waives OFT Condition Relating to the Acquisition of ViroPharma Inc. 2Shire Waives OFT Condition Relating to the Acquisition of ViroPharma Inc. 3Intellectual Property Insurance for Medical-related Products and Services 2
Non-Illuminated Trial Lens Set is an attractive set of trial lenses worked to a high standard of accuracy....
Trial Lens Sets....
... disc test (P/N LD15C) include a durable ... instructions. P/N LD15C also includes a Plexiglas ... covers for the test subjects fingers ( ... color discs). Beware that these finger cots ...
Opti-Free Express multi-purpose disinfecting solution lasting comfort No Rub formula provides triple action protection for your contact lenses....
Medicine Products: