Cognitive Rehabilitation for Gulf War Illness

Inclusion Criteria: Inclusion: * deployed to first Gulf War and meets Kansas definition for GWI (see definition in measures section); * scores at least a half a standard deviation worse than the mean on the World Health Organization Disability Schedule (WHO-DAS II). Exclusion Criteria: Exclusion: * current suicidal/homicide intent or plan assessed by The Columbia Suicide Severity Rating Scale, schizophrenia or current psychotic symptoms * self-reported diagnosis of a degenerative brain disorder or serious psychiatric or medical illness which may limit generalizability of the findings, limit safety or account for the symptoms of GWI. Exclusionary medical illnesses include: Class 3 and 4 heart failure, cancer diagnosed within the past year and/or undergoing active treatment (chemotherapy or radiation therapy), chronic renal insufficiency, hospitalization due to myocardial infarct, stroke in the past year, a neurodegenerative disorder, or another medical or psychiatric disorder that may limit generalizability, limit participants safety or account for the symptoms of GWI at the discretion of the PI. * a disability that would preclude telephone use.