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Decoding imagined movements from the posterior parietal cortex of tetraplegic humans

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Air date: Monday, May 8, 2017, 12:00:00 PM
Time displayed is Eastern Time, Washington DC Local
Views: Total views: 158, (26 Live, 132 On-demand)
Category: Neuroscience
Runtime: 01:03:14
Description: NIH Neuroscience Series Seminar

While the concept of artificial intelligence has received a great deal of attention in the popular press, the actual determination of the neural basis of intelligence and behavior has proven to be a very difficult problem for neuroscientists. Our behaviors are dictated by our intentions, but we have only recently begun to understand how the brain forms intentions to act. The posterior parietal cortex is situated between the sensory and the movement regions of the cerebral cortex and serves as a bridge from sensation to action. Dr. Anderson’s lab has found that an anatomical map of intentions exists within this area, with one part devoted to planning eye movements and another part to planning arm movements. The action plans in the arm movement area exist in a cognitive form, specifying the goal of the intended movement rather than particular signals to various muscle groups. Current studies involve examining decision making, stages in motor planning, coordinate transformations for sensory guided movements, and neural prosthetics using posterior parietal cortex neural activity.

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Author: Richard Andersen, Ph.D., James G. Boswell Professor of Neuroscience, Division of Biology and Biological Engineering, California Institute of Technology
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CIT Live ID: 20268
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