Washington, Apr 19 ANI | 5 months ago

Two psychologists from Simon Fraser University have made a 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 a specific brain activity that the researchers have identified as helping us prevent distraction.

The discovery was done 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," Gaspar, the study's lead author, said.

"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," he added.

Given the proliferation of distracting consumer devices in our technology-driven, fast-paced society, the psychologists say their discovery could help scientists and health care professionals better treat individuals with distraction-related attentional deficits.

The findings are published in the Journal of Neuroscience.

(Posted on 19-04-2014)

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