How Pain Distracts the Brain
Anybody who’s tried to concentrate on work while suffering a headache knows that pain compellingly commands attention–which is how evolution helped ensure survival in a painful world. Now, researchers have pinpointed the brain region responsible for pain’s ability to affect cognitive processing. They have found that this pain-related brain region is distinct from the one involved in cognitive processing interference due to a distracting memory task. Ulrike Bingel and colleagues at the University Medical Center Hamburg-Eppendorf published their discovery in the July 5, 2007 issue of the journal Neuron. To search for the region responsible for pain’s ability to usurp attention, the researchers asked volunteers to perform a cognitive task involving distinguishing images, as well as a working memory task involving remembering images. The researchers asked the volunteers to perform the tasks as they experienced different levels of pain caused … Read more