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ELECTROENCEPHALOGRAPHIC CHANGES AFTER PREFRONTAL LOBOTOMYWith Particular Reference to the Effect of Lobotomy on Sleep Spindles
MARGARET A. LENNOX, M.D.;
JOHN COOLIDGE, M.D.
Arch Neurol Psychiatry. 1949;62(2):150-161.
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THERE are relatively few reports on electroencephalographic changes following lobotomy.1 Most reports2 are in agreement that electroencephalographic slowing occurs after lobotomy, that it is most prominent anterior to the plane of incision and that the degree of slowing decreases within the first few months after operation. Electroencephalographic changes are not correlated with the psychiatric clinical condition,1d but may be correlated with seizure phenomena. An abnormal preoperative electroencephalogram increases the chances that a patient will have convulsions postoperatively,1e and the postoperative electroencephalographic abnormality may become more rather than less pronounced in patients in whom seizures develop.1c Cohn attributed the postoperative slowing to brain injury, whereas Stevens and Moscovich1d attribute it to the interruption of corticothalamocortical impulses.
Our interest in the effect of lobotomy on the electroencephalogram in human beings was aroused by the report of Morison and Bassett,3 who describe bursts, trains or spindles
. . . [Full Text PDF of this Article]
Author Affiliations
NEW HAVEN, CONN.
From the Department of Psychiatry, Yale University School of Medicine.
Footnotes
Aided by a grant from the Fluid Research and Teaching Fund of Yale University.
This study was undertaken in connection with the Connecticut Cooperative Lobotomy Research Program in collaboration with Dr. Burness Moore, of the Department of Psychiatry and Mental Hygiene of Yale University School of Medicine, and Dr. Benjamin Simon, of the Connecticut State Hospital.
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