DISCORDANCE WITH RESPECT TO SCHIZOPHRENIA IN MONOZYGOTIC MALE TWINS

Abstract

After analyzing the case histories of monozygotic twins published by Slater, Rosenthal concluded that two broad subgroups of schizophrenia could be distinguished: the paranoid form, in which the genetic contribution is minimal or absent, and the catatonic form, in which the genetic contribution is probably considerable. The data of the present study do not support these hypotheses.