Accession Number : AD0701111

Title :   BRAIN, BEHAVIOR, AND INTRACEREBAL BLOOD FLOW. INTRACEREBRAL ELECTROGRAPHIC STUDIES IN THE HUMAN BRAIN.

Descriptive Note : Final technical rept. Aug 68-Jul-69,

Corporate Author : GAUSTAD HOSPITAL OSLO (NORWAY) EEG RESEARCH LAB

Personal Author(s) : Sem-Jacobsen,Carl Wilhelm

Report Date : SEP 1969

Pagination or Media Count : 18

Abstract : The hydrogen technique for measuring blood flow was used to measure intracerebral blood flow from 17 electrodes in 7 patients. The patients were studied in 1 to 18 sessions with from 2 to 14 measurements in each session. Thus rCBF has been determined between 2 and 152 times around each of the 118 electrodes, giving 9,687 flow values during the past year. Measurements have been made during the recovery from brain surgery, during sleep and awakefulness, as well as during physical and mental activity etc. The data are reproducible from one time to another, each patient being his own control. Marked focal fluctuations in blood flow were found in the subcortical structures. These fluctuations are probably due to the physiological activity with corresponding increase or decrease in the need for blood supply in the brain, centers and systems. CO2 elicits major changes in the blood flow in certain areas while no changes in others. (Author)

Descriptors :   (*BRAIN, *BLOOD CIRCULATION), BEHAVIOR, OXYGEN, CARBON DIOXIDE, MEASUREMENT, DIAGNOSIS(MEDICINE), SURGICAL IMPLANTATION, ELECTRODES, NORWAY

Subject Categories : Anatomy and Physiology
      Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE