Stop signs: Study identifies 'braking' mechanism in the brain

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Renderings of the brains braking network viewed from the front and side. A cutaway of the right hemisphere reveals white matter tracts or cables that connect three distant regions of the brain known to be important for controlling behavior. Credit: C ...
Renderings of the brain’s "braking" network, viewed from the front and side. A cutaway of the right hemisphere reveals white matter tracts, or "cables," that connect three distant regions of the brain known to be important for controlling behavior. Credit: Courtesy David Flitney, Oxford University

As wise as the counsel to "finish what you've started" may be, it is also sometimes critically important to do just the opposite -- stop. And the ability to stop quickly, to either keep from gunning the gas when a pedestrian steps into your path or to bite your tongue mid-sentence when the subject of gossip suddenly comes into view, may depend on a few "cables" in the brain.


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