Cognitive Rehabilitation for Homeless OEF/OIF/OND Veterans

This study integrates cognitive rehabilitation in residential care for homeless Veterans. In a 15-week randomized controlled trial, the investigators will compare an evidence-based, 10-week Compensatory Cognitive Training (CCT) intervention to an education control condition for homeless Veterans with cognitive impairment. CCT aims to improve real-world cognitive performance by teaching strategies to improve prospective memory (remembering to do things), attention, learning/memory, and executive functioning. Strategies to reduce stress and improve sleep are also included. CCT has been shown to improve cognition, functional capacity, neurobehavioral symptom severity, and quality of life in individuals with cognitive impairment associated with psychiatric illness and in Veterans with traumatic brain injury (TBI). During the trial, assessments will be administered at baseline, 5 weeks, 10 weeks, and 15 weeks, and monthly follow-up phone calls will assess housing and employment/education status for one year following program discharge. The investigators expect CCT-associated improvements in cognition and functional skills (co-primary outcomes) and generalization to reduced levels of disability, along with improved community reintegration outcomes (better housing stability, participation in work or school, and healthcare appointment attendance). If effective, the CCT intervention could be exported to the 80+ residential VA programs serving homeless Veterans. The investigators thus propose the following aims:

Aim 1. Investigate the efficacy of cognitive rehabilitation in homeless returning Veterans with mental health conditions and cognitive impairment by conducting a randomized controlled trial of Compensatory Cognitive Training (CCT) vs. education control for 10 weeks, with a 5-week follow-up, followed by 1 year of monthly post-discharge follow-up phone calls to assess community reintegration outcomes.

H1a: Positive CCT-associated effects on cognition, functional capacity (co-primary outcomes), and disability will emerge over the 15-week study.

H1b: Positive CCT-associated effects on community reintegration outcomes (housing stability, participation in employment/education, healthcare appointment attendance) will be detected at the end of the 1-year follow-up.

Aim 2. Investigate mechanisms of CCT effects. H2: Improved cognition and cognitive strategy use will mediate improvements in functional capacity, disability, and community reintegration.