Navigation Links
University of Maryland School of Medicine, NIH study pinpoints brain area's role in learning
Date:11/26/2012

An area of the brain called the orbitofrontal cortex is responsible for decisions made on the spur of the moment, but not those made based on prior experience or habit, according to a new basic science study from substance abuse researchers at the University of Maryland School of Medicine and the National Institute on Drug Abuse (NIDA). Scientists had previously believed that the area of the brain was responsible for both types of behavior and decision-making. The distinction is critical to understanding the neurobiology of decision-making, particularly with regard to substance abuse. The study was published online in the journal Science.

Scientists have assumed that the orbitofrontal cortex plays a role in "value-based" decision-making, when a person compares options and weights consequences and rewards to choose best alternative. The Science study shows that this area of the brain is involved in decision-making only when the value must be inferred or computed rapidly or hastily. If the value has been "cached" or pre-computed, like a habit, then the orbitofrontal cortex is not necessary.

The same is true for learning if a person infers an outcome but it does not happen, the resulting error can drive learning. The study shows that the orbitofrontal cortex is necessary for the inferred value that is used for this type of learning.

"Our research showed that damage to the orbitofrontal cortex may decrease a person's ability to use prior experience to make good decisions on the fly," says lead author Joshua Jones, Ph.D., a postdoctoral researcher at the University of Maryland School of Medicine and a research scientist at NIDA, part of the National Institutes of Health. "The person isn't able to consider the whole continuum of the decision the mind's map of how choices play out further down the road. Instead, the person is going to regress to habitual behavior, gravitating toward the choice that provides the most value in its imm
'/>"/>

Contact: Karen Robinson
karobinson@som.umaryland.edu
410-706-7590
University of Maryland Medical Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. University of Michigan, Michigan State University award grants for Great Lakes climate change research
2. Undersea gas leaks off Israels coast are discovered by University of Haifa researchers
3. Ben-Gurion University team in prestigious DARPA Robotics Challenge to develop disaster response robot
4. Israels first Green Roofs Ecology research center dedicated at University of Haifa
5. Louisiana Tech University professor earns national honor from Society of American Foresters
6. High-strength material advancements at Wayne State University may lead to new, life-saving steel
7. Baylor University scientist receives major grants for health research on 1991 Gulf War veterans
8. University of Toronto study demonstrates impact of adversity on early life development
9. The George Washington University Researcher received $1.7 million to study solar cement
10. The 2013 HFSP Nakasone Award goes to Stephen Quake of Stanford University
11. University of Tennessee, ORNL lead national team to study nuclear fusion reactors
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... invisible is probably the ultimate form of camouflage: you ... And this strategy is not as uncommon as you ... Baltimore County, USA, explains that the larval life stages ... one part of the anatomy that most creatures cannot ... eyes have to shield each individual eye unit with ...
(Date:9/17/2014)... UCLA atmospheric scientists were instrumental in the creation of ... tool to classify the fire threat potential of the ... a spark into an inferno. The index was introduced ... with UCLA and San Diego Gas and Electric. , ... to "extreme" that will be used to help fire ...
(Date:9/17/2014)... genetic disorder known as Jacobsen syndrome has been linked ... researchers at San Diego State University and the University ... treatment options for people with Jacobsen syndrome, the finding ... autism., Jacobsen syndrome affects approximately 1 in 100,000 people, ... in a person when there is a deletion at ...
Breaking Biology News(10 mins):Transparent larvae hide opaque eyes behind reflections 2UCLA scientists play key role in developing new Santa Ana Wildfire Threat Index 2A link between Jacobsen syndrome and autism 2
... is difficult to measure accurately each nation,s contribution of carbon ... the ground as coal, gas, and oil, and these fuels ... to generate the energy that is used to make products. ... countries where they are consumed. A team led by Carnegie,s ...
... The University of Texas at Austin whose technology developments in ... tens of thousands of patients with diseases such as cancer ... Institute of Medicine (IOM). Established in 1970, IOM is ... institute is considered one of the highest honors in health ...
... of spinal cord injury is receiving attention in the ... the department of biomedical engineering at NJIT, recently has ... micro-electrical stimulators for individuals with spinal cord injuries. ... year of support from a four-year, $1.4 million National ...
Cached Biology News:Links in the chain: Global carbon emissions and consumption 2UT professor elected to the Institute of Medicine of the National Academies 2UT professor elected to the Institute of Medicine of the National Academies 3NJIT researcher testing micro-electronic stimulators for spinal cord injuries 2
(Date:9/18/2014)... MX (PRWEB) September 18, 2014 September ... Mexico City, MX. ASEA is the manufacturer of the ... the skin care product, RENU28. , The Mexico ... Vice President Duvan Botero, and ASEA Field Leader Shawn ... holds a PhD in Atomic/Medical Physics from the University ...
(Date:9/17/2014)... INCLINE VILLAGE, Nev. , Sept. 17, 2014  PDL ... notified by its independent registered accounting firm, Ernst & Young ... The resignation was confirmed in a letter delivered to the ... 8-K filed on September 16, 2014.  PDL ... "We have received a number of inquiries on ...
(Date:9/17/2014)... -- The global consumption of squalene / squalane is expected ... skin-identical chemical that finds applications in various end user industries ... in other applications like high grade lubrication, and fiber coating ... players and is regionally segregated. Sophim ( France ... ( Japan ), SeaDragon Marine Oils Ltd. ( ...
(Date:9/17/2014)... , Sept. 17, 2014  The In Silico ... that will be featured at the conference, which takes ... on December 3 and 4, 2014. Researchers, students, drug ... to hear the following: KEYNOTE SPEAKERS ... Diego Skaggs School of Pharmacy Drug ...
Breaking Biology Technology:Announcing the ASEA Mexico Grand Opening Tour Beginning September 18th 2PDL BioPharma Issues Statement on Resignation of Ernst and Young as Corporate Auditors 2PDL BioPharma Issues Statement on Resignation of Ernst and Young as Corporate Auditors 3Squalene Market by Source (Animal & Vegetable) & by End-user Industry (Cosmetics, Pharmaceuticals & Food Industry) - Global Trends & Forecasts to 2019 2Squalene Market by Source (Animal & Vegetable) & by End-user Industry (Cosmetics, Pharmaceuticals & Food Industry) - Global Trends & Forecasts to 2019 3In Silico Drug Discovery Conference Announces Speakers and Topics 2In Silico Drug Discovery Conference Announces Speakers and Topics 3In Silico Drug Discovery Conference Announces Speakers and Topics 4In Silico Drug Discovery Conference Announces Speakers and Topics 5In Silico Drug Discovery Conference Announces Speakers and Topics 6In Silico Drug Discovery Conference Announces Speakers and Topics 7
... Amgen (Nasdaq: AMGN ) today announced that ... financial results on Monday, Jan. 24, 2011 after the close ... a conference call with the investment community at 2:00 p.m. ... Kevin Sharer, chairman and chief executive officer, and other members ...
... 2011 Sensus Healthcare is pleased to ... professional skin care products to be exclusively offered by ... Cases of skin cancer are on the rise and ... taking new aim at skin cancer (SM) in ...
... 2011 Cephalon, Inc., (Nasdaq: CEPH ) will hold ... founder and late Chairman and CEO on February 1, 2011, at ... Street, Philadelphia, Pennsylvania. Dr. Baldino founded Cephalon in ... one of the top ten biotechnology companies in the world. He ...
Cached Biology Technology:Amgen Announces Webcast of 2010 Fourth Quarter and Full Year Financial Results 2Sensus Healthcare Announces New Professional Skin Care Line - Sensus Skin Solutions™ 2Cephalon to Hold Public Memorial Service to Celebrate the Life of Company Founder, Frank Baldino, Jr., Ph.D. 2
Rat CINC-2 alpha/beta Affinity Purified Polyclonal Ab...
Tachykinin (H-2)...
...
... to significantly increase the shelf life of ... increased at room temperature storage conditions in ... is subjected to 0.45 micron filtration, and ... formulation insures consistently high levels of activity ...
Biology Products: