How Brains Race to Cancel Errant Movements

Neuroskeptic iconNeuroskeptic
By Neuroskeptic
Aug 4, 2013 12:02 AMNov 20, 2019 1:28 AM

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You're just about to put your hand on the hob of your electric cooker, when you remember that it was on full blast until five minutes ago, and will still be scalding hot. You try to stop yourself - but will you succeed? This kind of 'stop!' scenario is the subject of some most interesting work by Ann Arbor neuroscientists Robert Schmidt and colleagues: Canceling actions involves a race between basal ganglia pathways Stop intentions may or may not succeed. Psychologists study these using 'stop-signal' tasks in which, for example, you must press a button whenever you hear a 'go' signal, unless it is followed by a 'stop' signal.

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