The investigators will enroll 308 participants. Half of these will be Gulf War Veterans who meet criteria for CMI, and the other half will be Veterans from other periods of service who also meet criteria for CMI. Each participant will be randomized to either participate in MBSR or aCDSMP (stratified by Gulf War deployment status so there are \~7-8 Gulf War Veterans in each group for every cohort). Measures to collect primary outcome data (pain, fatigue, cognitive failures, patient satisfaction), secondary outcomes, and potential mediators will be administered at four assessments: (1) Baseline; (2) Post-Intervention; (3) at 3-months after the group ended; and (4) at 6-months after the group ended. Sample demographic data (age, gender, race, income, education, etc.) will be collected at baseline only. All study procedures will take place at VA Puget Sound Health Care System in Seattle, WA.
