Am J Psychiatry 1989; 146:1190-1192
Copyright © 1989 by American Psychiatric Association
Antidepressant effects of right versus left unilateral ECT and the lateralization theory of ECT action
R Abrams, CM Swartz and C Vedak
Department of Psychiatry, University of Health Sciences/Chicago Medical School, IL 60064.
In a random-assignment, double-blind, controlled comparison of right versus
left unilateral ECT in 30 melancholic men, the two methods were not
significantly different in overall antidepressant potency, although there
was a significantly faster rate of improvement with left unilateral ECT.
These results imply that the antidepressant effects of ECT cannot be
attributed primarily to right hemisphere mechanisms, as others have
postulated.