The purpose of this study was to examine the likelihood of brain damage in shell shock injured patients by comparing their cognitive functioning with three groups of injured patients, prisoner of was with PTSD, and normal individuals.

All groups were administrered Wchsler Memory Scale, Benton Visual etention, Dailler Cancellation, Smith Digit Symbol and Wisconsin Card Sorting Tests. The findings showed that in the most of these neuropsychologicla tests there was no significant difference between the shell shock injured group and the organic damage group, while there was a significant difference between the shell shock injured group and prisoners of war with posttraumatic stress disorder.