Navigation Links
Study finds 'law-like' patterns in human preference behavior
Date:5/26/2010

ormally colored, and one of raw, unprepared food on two different days. For one viewing, participants were hungry, for the other, they had just eaten. Responses were measured by whether participants increased, decreased, or did nothing to change how long they viewed particular images.

All three experiments showed the same patterns in both groups and individuals, patterns that contained a set of features that varied between people. These patterns describe how groups and individuals make tradeoffs between approaching and avoiding items; how value is attributed to objects, which is linked assessments of other objects of the same type; and how individuals set limits to how strongly they will seek or avoid objects.

The authors note that these patterns incorporate aspects of three existing theories in reward/aversion: prospect theory, which includes the fact that people are more strongly motivated to avoid negative outcomes than to attain positive outcomes; the matching law, which describes how the rates of response to multiple stimuli are proportional to the amount of reward attributed to each stimulus; and alliesthesia, which notes that the value placed on something depends on whether it is perceived to be scarce for example, hungry people place greater value on food than do those who have just eaten.

One of the key differences between relative preference theory (RPT) and earlier theories is that RPT evaluates preferences relating to the intrinsic value of items to an individual, rather than relating preferences to values set by external forces such as how the overall economy sets the value of the dollar. The patterns observed in this study are similar at the individual and group levels a relationship known as "scaling."

"In order for behavioral patterns to be considered law-like, they need to be described mathematically, recur in response to many types of stimuli, remain stable in the face of statistical noise, and poten
'/>"/>

Contact: Sue McGreevey
smcgreevey@partners.org
617-724-2764
Massachusetts General Hospital
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Healthier Fats Replacing Trans Fats, Study Finds
2. Study identifies promising treatment for aggressive lymphoma
3. Some statins have unintended effects and warrant closer monitoring, study finds
4. Study sheds light on deadly GI disease in infants born with complex congenital heart disease
5. Breast Cancer Study Offers New Hope
6. New study confirms link between nonalcoholic steatohepatitis and liver cancer
7. Center for the Study of Aging established at University of Denver
8. Heart Drugs Safe for Lungs, Study Finds
9. New national study examines pediatric mobility aid-related injuries
10. Insightful Case Study Details How Electronic Payment Exchange Saved a Global Firm More Than $3 Million in PCI-Related Costs
11. Fat in Males, Females Differs Genetically, Mouse Study Shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Blue Cross and Blue Shield of Minnesota (Blue Cross) ... to “Live Fearless.” , The “Faces of Fearless” ... about how they or someone they know has faced a ... the moment. By telling these types of stories through livefearlessmn.com, ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Thousand of ... Medical Care recalled its GranuFlo and NaturaLyte dialysis concentrates ... underway in U.S. District Court, District of Massachusetts, Bernstein ... 20th, the Court has remanded a case filed by ...
(Date:1/22/2015)... New York, NY (PRWEB) January 22, 2015 ... American College of Sports Medicine flagship journal Medicine ... supplementation with L-Citrulline before exercise may help reduce ... strenuous exercise. 1 , Participants in the ...
(Date:1/22/2015)... Payday lending practices in four southern ... financial distress to the states that permit them, according ... Center on Race and Wealth. , While they generate ... loans at the same time substantially depress economic activity, ...
(Date:1/22/2015)... Lower-Auto-Insurance.com has released a new blog post explaining the importance ... reducing the costs of an auto insurance policy . , ... lower prices for their vehicle insurance policies. The safety a vehicle ... costs. Because of this, drivers should always carry a first ...
Breaking Medicine News(10 mins):Health News:Blue Cross and Blue Shield of Minnesota to Showcase “Faces of Fearless” 2Health News:Court Overseeing Federal GranuFlo Lawsuits Remands Louisiana Claim Back to State Court, Bernstein Liebhard LLP Reports 2Health News:Court Overseeing Federal GranuFlo Lawsuits Remands Louisiana Claim Back to State Court, Bernstein Liebhard LLP Reports 3Health News:Court Overseeing Federal GranuFlo Lawsuits Remands Louisiana Claim Back to State Court, Bernstein Liebhard LLP Reports 4Health News:Study Shows Kyowa Hakko’s L-Citrulline May Help Reduce Gastrointestinal Injury During Strenuous Exercise 2Health News:Study Shows Kyowa Hakko’s L-Citrulline May Help Reduce Gastrointestinal Injury During Strenuous Exercise 3Health News:Howard University Spotlights the Economic Impact of Payday Lending in Southern States 2Health News:Driving Safe And Other Factors That Make Auto Insurance Affordable! 2
... it is easier to learn about things related to what we ... to a new study. The team says this is ... adding to what we already know is so much easier. ... building on existing knowledge activates a key set of genes in ...
... (HealthDay News) -- Suicide rates increased in Europe since the ... according to researchers. Across the European Union, unemployment rose ... 2009. At the same time, there was a reversal in ... countries before 2007. In 2008, the suicide rate increased ...
... HealthDay Reporter , THURSDAY, July 7 (HealthDay News) ... colon cancer death rates in the past two decades, a ... evenly across the United States, with the southern part of ... the time period between 1990 and 2007, the current study ...
... that could stop the growth of glioblastoma, a deadly form ... journal Cell , a Cell Press publication, a new ... allows them to grow and seed tumors. Importantly, normal stem ... that same dependency. "When thinking about therapeutics [targeting cancer ...
... , THURSDAY, July 7 (HealthDay News) -- The female ancestor ... lived in the vicinity of present-day Britain and Ireland 20,000 ... scientists. It,s likely that climate changes that affected the ... habitats and interbreeding between brown bears and polar bears. This ...
... of Southampton have developed smart nanomaterials, which can disrupt ... of researchers, led by Physics lecturer Dr Antonios Kanaras, ... activate or inhibit genes that are involved in angiogenesis ... oxygen and nutrients to most types of cancer. ...
Cached Medicine News:Health News:Europe's Suicides Up, Road Deaths Down After Economy Tanked 2Health News:Southern States Lag Behind North in Drop in Colon Cancer Death Rates 2Health News:Southern States Lag Behind North in Drop in Colon Cancer Death Rates 3Health News:Southern States Lag Behind North in Drop in Colon Cancer Death Rates 4Health News:To combat deadly brain cancer, target the stem cells 2Health News:Female Ancestor of All Living Polar Bears Was Brown 2
(Date:1/23/2015)... A lot of discussion in the medical community revolves ... injuries, or conditions. As medical science advances, doctors and surgeons ... that they consider to be more cutting edge. Yet, when ... method of treatment that stands out as the best solution ...
(Date:1/23/2015)... WASHINGTON , Jan. 23, 2015  A new analysis ... Part D 2015 enrollment data shows that 81 percent ... convenient access and extra discounts at certain pharmacies. The ... "Preferred pharmacy plans are now the foundation of ...
(Date:1/23/2015)... a third of reproductive-aged women enrolled in Medicaid, and more ... prescription for an opioid pain medication each year during 2008-2012, ... Weekly Report (MMWR). Opioids are typically prescribed ... They are also found in some prescription cough medications. The ...
Breaking Medicine Technology:No One-Size-Fits-All Remedy for Hernia Correction 2New Analysis: 81 Percent of Medicare Part D Seniors Choose "Preferred Pharmacy" Plans in 2015 2Opioid painkillers widely prescribed among reproductive age women 2Opioid painkillers widely prescribed among reproductive age women 3
... Va., Oct. 27, 2011   FHSSA counts its ... organization (originally known as the Foundation for Hospices ... 90 partnerships between US hospice programs and organizations ... provide technical assistance, support and friendship.  They are ...
... R.I., Oct. 27, 2011 MEDfx ... power of connected healthcare in partnership with federal ... Lifetime Electronic Records (VLER) initiative for veterans and ... medical records for veterans and military personnel and ...
Cached Medicine Technology:FHSSA Launches New Campaign to Partner US Hospices with Programs in Sub-Saharan Africa 2MEDfx Demonstrates Potential of Connected Healthcare by Enabling Military and Civilian Medical Professionals to Securely Access Records, Improve Care Coordination 2
... Electro-4 design allows "Four gels in one tank" ... to run 200 samples or more in one ... horizontal gels. To ensure even migration, the electrode ... gels being run. Ideal for high throughput procedures, ...
... be used for: Analytical Protein and ... SDS-PAGE gels IEF in ultrathin PAGE ... Protein and Peptide Separation: Non-denaturating PAGE ... Agarose Ampholyte Gels (Z64,071-9& Z64,075-1) Molecular ...
... set up and safe to use, the Gel ... casting and running agarose gels. The unit is ... direct-connect power supply eliminates a tangled mess of ... space. Designed for safety and convenience, the power ...
... electrophoresis system is designed for very fast and ... gels. This system allows the user to fast ... of high quality. Complete system with : 1 ... Maker Stands, (4) 52 x 60 mm Trays, ...
Medicine Products: