Navigation Links
Revealing the wiring that allows us to adapt to the unexpected
Date:1/31/2011

Milan, Italy, 31 January 2010 Wouldn't life be easy if everything happened as we anticipated? In reality, our brains are able to adapt to the unexpected using an inbuilt network that makes predictions about the world and monitors how those predictions turn out. An area at the front of the brain, called the orbitofrontal cortex, plays a central role and studies have shown that patients with damage to this area confuse memories with reality and continue to anticipate events that are no longer likely to happen. The brain's ability to react adaptively, becomes crucial for survival, when faced with potential dangers, such as snakes and spiders, so to what extent does the harmfulness of an anticipated outcome affect our brain's event monitoring system? Not at all, reveals a new study published in the February 2011 issue of Elsevier's Cortex: the processes are the same, regardless how scary the anticipated event.

The team of researchers, supervised by Prof. Armin Schnider of the University Hospitals of Geneva in Switzerland, recorded functional magnetic resonance images (fMRI) while healthy volunteers performed a task in which they repeatedly saw a pair of faces and had to predict on which face a target was about to appear. The target could be a simple black disk (neutral stimulus) or a spider (potentially harmful stimulus). The researchers found a strong activation of the brain's visual areas whenever the spider appeared. However, irrespective of whether the disk or the spider was the target, its unexpected absence activated a cerebral network including the orbitofrontal cortex.

The findings show that, while the potential harmfulness of an event strongly affects brain responses, it does not influence the way the brain reacts when the expected event does not occur. The study supports the notion that the orbitofrontal cortex is "at the centre of a specific cerebral network which functions as a generic outcome monitoring system," says Louis Nahum, the first author of the study. "This capacity is probably as old in evolution as the instinctive reaction to threatening stimuli; its failure deprives the brain of the ability to remain in phase with reality," notes Armin Schnider.


'/>"/>

Contact: Laura Fabri
l.fabri@elsevier.com
39-028-818-4353
Elsevier
Source:Eurekalert

Related medicine news :

1. American Human Development Project Releases 'A Century Apart,' Revealing Alarming Disparities in Well-Being Among U.S. Racial and Ethnic Groups
2. Brains wiring: More network than pyramid?
3. OvaCue Fertility Monitor Breakthrough Allows Women to See Fertility Color-coded on a Calendar Over Time
4. South Dakota Students with Asthma Can Breathe Easier After New Law Allows Self-Administered Medications
5. Virtual colonoscopy allows detection of unsuspected cancers beyond colon
6. Self-Psychology Allows You to Carry A Cognitive Behavioral Therapist On Your iPhone
7. Emdat Launches DaRT Solution That Allows Physicians to Use EMRs with No Changes to Daily Workload
8. Genome breakthrough allows scientists to identify and profile tumor cells from very small samples
9. Radiation device allows for targeted breast radiation to control cancer
10. Toolkit allows anyone to test for ADA compliance
11. Sniffing Device Allows Disabled to Write, Run Wheelchairs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/29/2016)... ... April 29, 2016 , ... Intellitec Solutions is ... of Microsoft Dynamics GP for one their long-term care clients. Working together with ... GP with key clinical management systems, and delivered a fully integrated accounting and ...
(Date:4/29/2016)... ... April 29, 2016 , ... Pro3rd Grunge is a package of 30 grunge-themed ... to introduce people, characters, and locations without having to set a single keyframe. Choose ... many more design components. Simply select a preset and drag it into the ...
(Date:4/29/2016)... ... April 29, 2016 , ... In its efforts of bringing quality ... its successful franchise development and expansion as it welcomes Ferdie Vasquez of the new ... experience in his 32 years of working in various industries. He had been ...
(Date:4/28/2016)... St. Petersburg, FL (PRWEB) , ... April 29, 2016 , ... Sublime Beauty® is offering ... of the same product) for 50% off. The discount is applied to the product with ... box is given to those who purchase $250 or more in products. , "So many ...
(Date:4/28/2016)... ... 28, 2016 , ... ProText Layouts is a set of 30 self-animating kinetic ... With ProText Layouts, video editors can create an energetic typography video with incredible ease. ... texts. Creating text-based videos have never been easier. , ProText Layouts includes 30 ...
Breaking Medicine News(10 mins):
(Date:4/28/2016)... 28, 2016 , Net Sales of $1.90 ... over the prior year period, and an increase of 1.2% ... Diluted EPS for the first quarter were $0.52 reported, a ... adjusted, an increase of 29.9% over the prior year period ... earnings guidance for 2016 Zimmer Biomet Holdings, Inc. ...
(Date:4/28/2016)... Calif. , April 28, 2016 /PRNewswire/ ... Validation Lifecycle Management Solutions (VLMS) today announced ... and services for sufferers of chronic kidney ... System to manage their corporate validation process. ... seeking a software solution to manage their ...
(Date:4/27/2016)... , Schweiz, April 27, 2016 ... Sachs CEO Forums in Zürich gab Strekin ... führenden Wirkstoffkandidaten STR001 zur Erhaltung des Resthörvermögens ... wurde, bekannt. Für die umfassende Phase-II-Doppelblindstudie mit ... Frankreich angeworben. STR001 wird während der Operation ...
Breaking Medicine Technology: