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CENTRAL CORTICAL PROJECTIONS TO MOTOR AND SOMATO-SENSORY CELL GROUPS

CENTRAL CORTICAL PROJECTIONS TO MOTOR AND SOMATO-SENSORY CELL GROUPS CENTRAL CORTICAL PROJECTIONS TO MOTOR AND SOMATO-SENSORY CELL GROUPS A N EXPERIMENTAL STUDY IN THE RHESUS MONKEY BY H. G. J. M. KUYPERS1 University of Maryland, Baltimore, Maryland, U.S.A. INTRODUCTION PREVIOUS degeneration studies in the cat demonstrated cortical projections to the medial parts of the pontine and medullary tegmentum, as well as to the spinal trigeminal complex, the adjacent lateral tegmentum and the region of the nuclei cuneatus and gracilis (Kuypers, 1958a). In primates, lesions of the "pre-central" face area likewise produced a degeneration in the lateral tegmentum. Additional degenerating fibres, however, which were lacking in the cat, distributed to the motor nuclei. On the other hand, such pre-central lesions produced hardly any degeneration in the spinal trigeminal complex (Kuypers, \95Sd). Since in human material with lesions of the hemisphere (Kuypers, 19586) degenerating elements were abundant in the spinal trigeminal complex as well as in the lateral tegmentum and the motor nuclei, the inference was made that the projection to this sensory nucleus originates primarily in the post-central "sensory" areas. This was confirmed in two monkey experiments (Kuypers, I95id). These findings prompted a more general study regarding differential distributions from pre-central and post-central areas. The results of this study http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Brain Oxford University Press

CENTRAL CORTICAL PROJECTIONS TO MOTOR AND SOMATO-SENSORY CELL GROUPS

KUYPERS, H. G. J. M.
Brain , Volume 83 (1) – Mar 1, 1960
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Publisher
Oxford University Press
Copyright
© Oxford University Press
ISSN
0006-8950
eISSN
1460-2156
DOI
10.1093/brain/83.1.161
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Abstract

CENTRAL CORTICAL PROJECTIONS TO MOTOR AND SOMATO-SENSORY CELL GROUPS A N EXPERIMENTAL STUDY IN THE RHESUS MONKEY BY H. G. J. M. KUYPERS1 University of Maryland, Baltimore, Maryland, U.S.A. INTRODUCTION PREVIOUS degeneration studies in the cat demonstrated cortical projections to the medial parts of the pontine and medullary tegmentum, as well as to the spinal trigeminal complex, the adjacent lateral tegmentum and the region of the nuclei cuneatus and gracilis (Kuypers, 1958a). In primates, lesions of the "pre-central" face area likewise produced a degeneration in the lateral tegmentum. Additional degenerating fibres, however, which were lacking in the cat, distributed to the motor nuclei. On the other hand, such pre-central lesions produced hardly any degeneration in the spinal trigeminal complex (Kuypers, \95Sd). Since in human material with lesions of the hemisphere (Kuypers, 19586) degenerating elements were abundant in the spinal trigeminal complex as well as in the lateral tegmentum and the motor nuclei, the inference was made that the projection to this sensory nucleus originates primarily in the post-central "sensory" areas. This was confirmed in two monkey experiments (Kuypers, I95id). These findings prompted a more general study regarding differential distributions from pre-central and post-central areas. The results of this study

Journal

Brain – Oxford University Press

Published: Mar 1, 1960

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