TEXTO PARA A QUESTÃO
You know the exit is somewhere along this stretch of highway, but VOU have never taken it before and do not want to miss it. As Vou careful/y scan the side of the road for the exit sign, numerous distractions intrude on your visual field: billboards, a snazzy convertible, a cell phone buzzing on the dashboard. How does your brain focus on the task at hand?
To answer this question, neuroscientists generally study the way the brain strengthens its response to what Vou are looking for - jolting itself with an especially large electrical pulse when vou see it. Another mental triek may be just as important, aecording to a study published in April in the Journal of Neuroscience: the brain deliberately weakens its reaetion to everything else so that the target seems more important in comparison. Sueh researeh may eventually help scientists understand what is happening in the brains of people with attention problems, sueh as attention-deficit/hyperaetivity disorder. And in a world inereasingly permeated by distractions - a major eontributor to traffie aecidents - any insights into how the brain pays attention should get ours.
Scientific American, July 2014. Adaptado.
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