Navigation Links
Scientists find brain region that helps you make up your mind
Date:11/24/2013

One of the smallest parts of the brain is getting a second look after new research suggests it plays a crucial role in decision making.

A University of British Columbia study published today in Nature Neuroscience says the lateral habenula, a region of the brain linked to depression and avoidance behaviors, has been largely misunderstood and may be integral in cost-benefit decisions.

"These findings clarify the brain processes involved in the important decisions that we make on a daily basis, from choosing between job offers to deciding which house or car to buy," says Prof. Stan Floresco of UBC's Dept. of Psychology and Brain Research Centre (BRC). "It also suggests that the scientific community has misunderstood the true functioning of this mysterious, but important, region of the brain."

In the study, scientists trained lab rats to choose between a consistent small reward (one food pellet) or a potentially larger reward (four food pellets) that appeared sporadically. Like humans, the rats tended to choose larger rewards when costsin this case, the amount of time they had to wait before receiving food--were low and preferred smaller rewards when such risks were higher.

Previous studies suggest that turning off the lateral habenula would cause rats to choose the larger, riskier reward more often, but that was not the case. Instead, the rats selected either option at random, no longer showing the ability to choose the best option for them.

The findings have important implications for depression treatment. "Deep brain stimulation which is thought to inactivate the lateral habenula -- has been reported to improve depressive symptoms in humans," Floresco says. "But our findings suggest these improvements may not be because patients feel happier. They may simply no longer care as much about what is making them feel depressed."

Background

Floresco, who conducted the study with PhD candidat
'/>"/>

Contact: Stan Floresco
floresco@psych.ubc.ca
604-783-8549
University of British Columbia
Source:Eurekalert

Page: 1 2

Related biology news :

1. In plant photosynthesis, scientists see clues for improving solar energy cells
2. Scientists have been able to grow artificial skin using stem cells from the umbilical cord
3. Spanish scientists identify a new ancestral enzyme that facilitates DNA repair
4. UT Dallas computer scientists create 3-D technique
5. Salk scientists for the first time generate mini-kidney structures from human stem cells
6. The Gorgons of the eastern Pacific: scientists describe 2 new gorgonian soft coral species
7. Bleeding symptom leads scientists to intracellular traffickers role in virus propagation
8. Patients and scientists join forces to tackle Friedreichs Ataxia
9. Protein-rich breakfast helps to curb appetite throughout the morning, scientists find
10. Natures glowing slime: Scientists peek into hidden sea worms light
11. Bold new partnership launches to harness potential of data scientists and big data
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/17/2014)... Accurate knowledge regarding Ebola is critical and pertinent for ... hazardous global outbreak and epidemic. The Journal, Disaster ... special issue, Ebola Virus and Public Health, to surround ... in this critical societal moment. , On October ... for Clinicians . The primer was prepared by Dr. ...
(Date:10/17/2014)... To date, antidotes ... doctors are often limited to supportive therapy such as induced ... of drugs involved. So what can be done if a ... professor Jean-Christophe Leroux from the Institute of Pharmaceutical Sciences at ... "The task was to develop an agent that could eliminate ...
(Date:10/16/2014)... land managers have a new synthesis of recent research ... (MMC) forests in the two states. , The ... Oregon and Washington: A Synthesis of the Relevant Biophysical ... technical report published by the U.S. Forest Service,s Pacific ... request from managers for a synthesis of the large ...
Breaking Biology News(10 mins):Emergency aid for overdoses 2Emergency aid for overdoses 3New report synthesizes best available science on management of moist mixed-conifer forests 2
... Biotechnology and Biological Sciences Research Council (BBSRC) has launched ... ), a devastating fungus that threatens our third most ... of fast-track research funding has been awarded to gather ... to provide genetic clues about some ash trees, natural ...
... do for science if they weren,t, well, green? , That,s ... when they engineered a green alga used commonly in laboratories, ... by producing six different colored fluorescent proteins in the algae ... be all the rage this year for running shoes and ...
... Looking at the transformation of a fly larva into ... mechanisms that trigger puberty. A study conducted on the ... the Institute for Research in Biomedicine (IRB Barcelona) led ... as key to the relationship between hormones that control ...
Cached Biology News:Bioscience to battle ash dieback 2Bioscience to battle ash dieback 3Biologists produce rainbow-colored algae 2IRB Barcelona researchers discover mechanism that regulates steroid hormone production in Drosophila 2
(Date:10/25/2014)... 24, 2014 This research report ... Starch Based Plastics, Regenerated Cellulose, PCL), by Application ... and Forecasts to 2019”, defines and segments the ... forecast of its global volume and value. , ... spread through 178 Slides and in-depth TOC on ...
(Date:10/25/2014)... SonaCare Medical, LLC, leader in ... announced that its Board of Directors has appointed ... President and member of the Board effective immediately. ... expanded responsibilities within the company, including further developing ... commercialization, manufacturing and finance. , Dr. Carol ...
(Date:10/25/2014)... Great Barrington, MA (PRWEB) October 25, 2014 ... contamination control products, is pleased to announce the ... to achieve the highest level of contamination containment ... in ISO Class 3 and higher cleanroom environments, ... continuous filament polyester knit laundered wiper that continues ...
(Date:10/25/2014)... NEW YORK , Oct. 24, 2014 ... Access Pharmaceuticals, Inc. (ACCP), a biopharmaceutical company advancing ... implemented a 1-for-50 reverse split of its common ... Friday, October 24, 2014. PlasmaTech,s common stock will ... number 72754H109 and temporary ticker symbol "ACCPD". After ...
Breaking Biology Technology:Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 2Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 3Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 4SonaCare Medical Board of Directors Appoints Dr. Mark Carol as CEO and President 2SonaCare Medical Board of Directors Appoints Dr. Mark Carol as CEO and President 3Ions Are Bygones, Berkshire Announces the Release of New Innovative Cleanroom Wipers 2PlasmaTech Biopharmaceuticals, Inc. Announces Reverse Stock Split, Ticker Change and Launches New Corporate Website 2
... , , Alberta Centre ... health & medical seminar, , EDMONTON, Dec. 4 /PRNewswire/ ... how technologies like nanotechnology, biomaterials and microfluidics can play a ... help promote health and improve the quality, cost and outcomes ...
... , DALLAS, Dec. 3 ... Bulletin Board: ACCP), today provided an update on its European ... mucositis, a debilitating side effect of radiation treatment and chemotherapy. ... European countries, including the UK, Germany, Italy, Norway, Greece and ...
... , HOPKINTON, Mass., Dec. 3 Caliper Life Sciences, ... and services for drug discovery and life sciences research, today ... systems. Living Image software drives the more than 800 Caliper ... features advanced spectral unmixing tools to enhance fluorescent sensitivity and ...
Cached Biology Technology:Alberta companies delivering new products to the health & medical marketplace 2Access Pharmaceuticals Provides Update on MuGard Commercial Launch in Europe 2Access Pharmaceuticals Provides Update on MuGard Commercial Launch in Europe 3Access Pharmaceuticals Provides Update on MuGard Commercial Launch in Europe 4Caliper Life Sciences Launches Living Image(R) 4.0 Software 2
MAb to Vasopressin Preservative: NaN3...
... Anti-AP-2 α, clone 8G8/5 GenBank Accession ... made human AP-2alpha/gamma fusion protein corresponding to ... 278-450 of human AP-2γ Formulation: 0.1M Tris-glycine, ... before the addition of glycerol to 30% ...
Mouse monoclonal [1C6/2] to Rad17 ( Abpromise for all tested applications). entrezGeneID: 5884 SwissProtID: Q9UPF5...
MMP-2 / MMP-9 Inhibitor IV is a potent, selective, slow binding and mechanism based inhibitor of human gelatinases. • Molecular weight: 306.4 • Molecular Formula: C(15)H(14)O(3)S(2). &bul...
Biology Products: