Intellectual deficit in chronic schizophrenia and brain damage

Studied scores on the WAIS and the Halstead Battery of Neuropsychological Measures (HB) of 100 chronic schizophrenic and 100 brain-damaged patients divided into equal groups of younger (ages 26-59) and older (ages 60 and over) Ss. A significant interaction of WAIS scores with diagnosis and of HB scores with diagnosis and age was found. Pattern analysis indicate that the younger Ss in both groups differed in WAIS Comprehension and Digit Span and HB Category. Older Ss differed in WAIS Comprehension, Digit Span, Picture Completion, Block Design, and HB Speech Discrimination. Results suggest differing intellectual deficit patterns in chronic schizophrenia and brain damage. (16 ref.)