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The activity of neurones was recorded from the supplementary motor area (SMA) of monkeys while they were performing a discrete, arbitrary wrist movement. The cells responded similarly whether there was a triggering stimulus at the time of the movement or not. This experiment indicates that SMA neurones are active both in relation to externally triggered and internally initiated (voluntary) actions.

Type

Journal article

Journal

Neurosci Lett

Publication Date

11/11/1988

Volume

93

Pages

264 - 269

Keywords

Animals, Electromyography, Macaca mulatta, Motor Activity, Motor Cortex, Neurons, Wrist