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Mind reading
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Washington, USA [ScienceMag (registration required)]: When we act, we intend to reach a goal. Conversely, when we observe someone else act, we can often infer their intentions. The authors of this article found that in the inferior parietal lobule of an individual about to begin an action, the goal of their action (e.g., grasping for food versus grasping a branch) is reflected in the discharge of the neurons coding the first element of the sequence leading to the goal. In addition, many parietal neurons that code for an action like grasping also discharge while watching someone else grasping (parietal mirror neurons). The majority of these neurons respond differentially when the same observed motor act is performed with a different goal. Thus, these mirror neurons, besides describing the observed motor activity, also predict the intention behind the action.
For more information, please visit:
www.sciencemag.org/cgi/content/abstract/308/5722/662?etoc
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