Abstract
THE concept of the control of the somatic afferent pathways by the higher levels of the nervous system, first put forward by Hagbarth and Kerr1, has received considerable support from subsequent experiments involving the study of the activity of single neurones in the sensory tracts and nuclei. In particular, the dorsal column nuclei have been studied in detail with anatomical and physiological techniques2, and Eccles and Lundberg and their co-workers have demonstrated recently that stimulation of areas S I and S II of the cerebral cortex causes presynaptic inhibition on the afferent fibres relaying with the cells of the dorsal horn and cuneate nucleus3–7. Recent experiments have shown that the cerebral cortex can also influence the activity of the higher levels of the sensory pathways, namely the activity of some of the thalamic relay nuclei.
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References
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Calma, I., J. Physiol. (in the press).
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CALMA, I. Thalamo-cortical Relations in the Sensory Nuclei of the Cat. Nature 205, 394–396 (1965). https://doi.org/10.1038/205394a0
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DOI: https://doi.org/10.1038/205394a0
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