As part of a comprehensive multispecialty project, the present study reports on 
the neurocognitive and psychological function of veterans who report Persian 
Gulf War-related symptoms. The neuropsychological and psychological performances 
of 26 ill Gulf War veterans were compared to 20 well veterans from the same 
military unit. Neurocognitive functions assessed included intelligence, 
abstraction and problem-solving, attention and concentration, memory and 
learning, language and visual-spatial function, and sensorimotor abilities. 
Psychological function was measured by self-report questionnaires. Results 
indicated global and consistently poorer intellectual and neurocognitive 
function among the ill veterans compared to the control veterans. A generalized 
pattern of neuropsychological deficit was evident for the ill veterans. 
Psychological profiles of the ill veterans were similar to those in general 
medical patients. Based on these findings and results from the multispecialty 
investigation, we conclude that some of the ill veterans have experienced 
neurotoxic injury resulting in chronic neuropsychological impairment that is 
related to their service in the Persian Gulf War.