1 The survey of the literature pertaining to this review was completed in Apri l, 1955. 2 The following abbreviations are used in this chapter: ECT (electroconvulsive therapy); EEG (electroencephalograph); MMPI (Minnesota Multiphasic Person ality Inventory), 95 Annu. Rev. Psychol. 1956.7:95-120. Downloaded from www.annualreviews.org Access provided by University of Guelph on 02/03/15. For personal use only. Quick links to online content Further ANNUAL REVIEWS Annu. Rev. Psychol. 1956.7:95-120. Downloaded from www.annualreviews.org Access provided by University of Guelph on 02/03/15. For personal use only. ABNORMALITIES OF BEHAVIOR Annu. Rev. Psychol. 1956.7:95-120. Downloaded from www.annualreviews.org Access provided by University of Guelph on 02/03/15. For personal use only.