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. 1967 Aug;191(3):653–672. doi: 10.1113/jphysiol.1967.sp008273

Responses of the pyramidal tract to stimulation of the baboon's motor cortex

D Kernell, Wu Chien-Ping
PMCID: PMC1365497  PMID: 4293134

Abstract

1. The arm area of the baboon's precentral motor cortex was stimulated by brief surface-anodal pulses, and the discharge of the corticospinal tract (the `pyramidal tract waves') was recorded by an electrode resting on the dorsolateral surface of the cervical spinal cord.

2. Some properties of the pyramidal tract waves were described, and they were also studied in relation to the firing of single cortico spinal fibres.

3. The results led to the conclusion that the later pyramidal tract waves (the `I waves') were almost exclusively due to a semi-synchronous repetitive discharge of the same fast cortico spinal fibres as those responsible for the initial wave (the `D wave').

4. Some problems concerning the origin and significance of the I waves were discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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