Cognitive Principles of Movement Neuroscience – Reaction Paper Tuhin Chakraborty This article was successful in enlightening the reader about many of the principles by which the CNS and its relationship to sensory signals and motor commands cause us to move in the ways we do. I was only partially fulfilled by the end of the article, however, as I felt that I walked away with more questions than answers. The article begins with a cursory explanation of motor planning, by proposing that our body moves optimally by maximizing smoothness. However, conspicuous by their absence are explanations of why smoothness is important, as well as how it is measured by the CNS. The importance of smoothness is already debatable, because no experiments were done to rule out other criteria for optimization. For example, perhaps the most optimal way for the hand to move, because of the way the muscles are oriented, is at a certain arc that may change from person to person. An adult with longer arms may have a different optimal path than a small
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This essay was uploaded on 04/21/2008 for the course NEUROBIO 95 taught by Professor Platt during the Spring '08 term at Duke.