A Hard Scientific Quest: Understanding Voluntary Movements
Author(s)Bizzi, Emilio; Ajemian, Robert J.
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In this article we explore the complexities of what goes on in the brain when one wishes to perform even the simplest everyday movements. In doing so, we describe experiments indicating that the spinal cord interneurons are organized in functional modules and that each module activates a distinct set of muscles. Through these modules the central nervous system has found a simple solution to controlling the large number of muscle fibers active even during the execution of the simplest action. We also explore the many different neural signals that contribute to pattern formations, including afferent information from the limbs and information of motor memories.
DepartmentMassachusetts Institute of Technology. Department of Brain and Cognitive Sciences; McGovern Institute for Brain Research at MIT
Bizzi, Emilio, and Robert Ajemian. “A Hard Scientific Quest: Understanding Voluntary Movements.” Daedalus 144, no. 1 (January 2015): 83–95. © 2015 American Academy of Arts & Sciences
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