Electrophysiologic studies in cats were undertaken to determine the possible pathways for somatosensory transmission to the centrum medianum and pulvinar nuclei of the thalamus. The effects of discrete lesions in the various thalamic nuclei, mesencephalic reticular formation and spinal cord on the evoked potentials of the centrum medianum and pulvinar were recorded. It was noted that the centrum medianum and pulvinar had a dual activation from both dorsal and ventrolateral columns of the cord. The ventrolateral column component was mediated by the bulbar reticular formation and is believed to transmit nociceptive stimuli. The findings were correlated with known information about the mediation of acute and chronic pain and are consistent with the concept of a paleospinothalamic system for pain transmission.

Keywords:
Sensation, Pain, Centrum medianum, Pulvinar, Evoked potentials
This content is only available via PDF.
© 1973 S. Karger AG, Basel
1973
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.