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The Intelligent Movement MachineAn Ethological Perspective on the Primate Motor System$
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Michael Graziano

Print publication date: 2009

Print ISBN-13: 9780195326703

Published to Oxford Scholarship Online: May 2009

DOI: 10.1093/acprof:oso/9780195326703.001.0001

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The Match Between Natural Neuronal Properties and Stimulation-Evoked Movement

The Match Between Natural Neuronal Properties and Stimulation-Evoked Movement

(p.125) Chapter 8 The Match Between Natural Neuronal Properties and Stimulation-Evoked Movement
The Intelligent Movement Machine

Michael S. A. Graziano

Oxford University Press

This chapter discusses the match between neuronal properties and stimulation-evoked movement. It shows a three-way match between the properties of single neurons in motor cortex, the effects of electrical stimulation in motor cortex, and the behavioral repertoire of monkeys. Neurons in motor cortex are tuned to many movement parameters with an emphasis on the goal posture of the arm; electrical stimulation evokes complex movements for which the final posture of the arm is the most consistent feature; and the behavioral repertoire of a monkey emphasizes useful arm postures that are maintained within relatively narrow tolerance during the performance of common actions.

Keywords:   neurons, motor cortex, hand direction, arm posture, electrical stimulation, monkeys

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