Contents

Disclaimer

Oxford University Press makes no representation, express or implied, that the drug dosages in this book are correct. Readers must therefore always check the product information and clinical procedures with the most up to date published product information and data sheets provided by the manufacturers and the most recent codes of conduct and safety regulations. The authors and the publishers do not accept responsibility or legal liability for any errors in the text or for the misuse or misapplication of material in this work. Except where otherwise stated, drug dosages and recommendations are for the non-pregnant adult who is not breastfeeding.

Show Summary Details
Page of

On the Fluctuations of the Cerebral Tracings That Are Controlled by the Movements of the Vessels and of the Heart 

On the Fluctuations of the Cerebral Tracings That Are Controlled by the Movements of the Vessels and of the Heart
Chapter:
On the Fluctuations of the Cerebral Tracings That Are Controlled by the Movements of the Vessels and of the Heart
Author(s):

Marcus E. Raichle

DOI:
10.1093/med/9780199358984.003.0007
Page of

PRINTED FROM OXFORD MEDICINE ONLINE (www.oxfordmedicine.com). © Oxford University Press, 2020. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 27 October 2020

This chapter discusses the fluctuations of the cerebral tracings that are controlled by the movements of the vessels and of the heart. In addition to pulsations due to the heart and oscillations due to respiration, the author reports slower rises and falls of the tracings, which are called "undulations." In general, the author thinks of these as "spontaneous movements of the vessels." These are found in vessels of the body and in tracings from the brain. Some are categorized as "passive" (changes in blood pressure not due to vessels of the organ) in contrast to "active" (due to the individual pulsations of the brain). The author’s studies show that undulations are not controlled by respiration and do not always correspond between different body parts (forearm and cerebrum).

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.