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Scientists discover brain’s anti-distraction system

RATE THIS! +32
Posted in Science on 20th Apr, 2014 12:43 AM by AlexMuller

Two psychologists have made a brain-related discovery that could revolutionize doctors’ perception and treatment of attention-deficit disorders. This discovery opens up the possibility that environmental and/or genetic factors may hinder or suppress brain activity that the researchers have identified as helping us prevent distraction.

 
The Journal of Neuroscience has just published a paper about the discovery by John McDonald, an associate professor of psychology and his doctoral student John Gaspar, who made the discovery during his master’s thesis research.
 
This is the first study to reveal our brains rely on an active suppression mechanism to avoid being distracted by salient irrelevant information when we want to focus on a particular item or task.
 
McDonald, a Canada Research Chair in Cognitive Neuroscience, and other scientists first discovered the existence of the specific neural index of suppression in his lab in 2009. But, until now, little was known about how it helps us ignore visual distractions.
 
“This is an important discovery for neuroscientists and psychologists because most contemporary ideas of attention highlight brain processes that are involved in picking out relevant objects from the visual field. It’s like finding Waldo in a Where’s Waldo illustration,” says Gaspar, the study’s lead author.
 
“Our results show clearly that this is only one part of the equation and that active suppression of the irrelevant objects is another important part.”

Tags: brainneurosciencemental healthattentionattention-deficit disorder

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Comments

Author: Guest
Posted: 2014-04-20
+2
Very interesting - it seems that the brain not only has the mechanisms that help to focus on a particular object but also to remove all other objects and prevent confusion. Presumably both mechanisms can be compromised and it would be important how this could linked to various disorders
2 Replies
Author: Guest
Posted: 2014-04-20
+1
Indeed, disorders associated with attention deficits may turn out to be due to difficulties in suppressing irrelevant objects rather than difficulty selecting relevant ones Reply
Reply
Author: Guest
Posted: 2014-04-20
+0
The idea of scientists manipulating brain functions does, naturally, sound a bit creepy. But it also points to some possible good: treatment for millions of people tormented by brain disorders Reply
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