When the woman born. without limbs watches someone else sew, copycat regions in her brain to activate even though she Can't hold the needle, as herself. Additional areas of the brain, showing how to also present flexible brain are when it comes to observing and understanding the actions of others.
Scientists have known for over a decade on the mirror, the network of regions of the brain, typically activated by view and perform the action. But how the brain smoothly and quickly intuits that what others do, especially if the action is not something an observer may do so, it was clear, "says study coauthor Lisa Aziz-Zadeh of University of Southern California in Los Angeles.
In the study, healthy middle-aged woman, born. with no arms and legs underwent brain scans, as she watched the video for people to perform actions such as holding and eating a slice of apple, a sewing needle and finger tapping. The actions that the woman was capable of performing herself activated the system mirror, including parts of the brain that control movement. Mirror areas in even kicked for the tasks that the woman is a software in other ways, such as the dowieziono food using her mouth instead of hands. (The participant had prosthetics briefly as a teenager, but not used by the last 40 years.)
Woman witnessed actions that were impossible for her, for example, using scissors, its brain reverse system still kicked in, but additional brain regions recruited help. These additional regions usually are not needed when people view the jobs that are in a position to exercise, researchers write in coming from the cerebral cortex. It is thought that these regions are taking part in a process called "mentalizing," in which he tries to understand what someone else is thinking.
"What is interesting is that even if she cannot do it when it is not possible to her, she still recruits its mirrored-page layout, but it also recruits these regions mentalizing, Aziz-Zadeh said.
By suggesting that mentalizing system run for this woman when she cannot copy actions, new study helps, explanation of how these two systems of the brain work together, says cognitive neuroscientist Marcel Brass at the University of Ghent in Belgium.
Found in: Body and brain and humans
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