IDEATION IN PATIENTS WITH UNILATERAL OR BILATERAL MIDLINE BRAIN LESIONS

Hypothesized that persons with left vs. right unilateral brain lesions differ in complicated ideational processes in 50 Ss with well localized lesions. On a multiple-discriminant analysis, 7 selected Rorschach variables differentiated the left, right, and midline-bilateral groups at the .0001 level. Interpretation of Discriminant I, ideation, yields a modus operandi of left-hemisphere Ss which is limited and constricted; of right-hemisphere Ss which is expansive and uncritically innovative. Discriminant II, uniqueness of pathology, indicates that left and right groups differ significantly and are significantly divergent, with the midline group undistinguished on this dimension. (18 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1968 American Psychological Association.