RecruitingBehavioural interventionVerbal Working Memory and Attention Remediation for Adults With Traumatic Brain Injury.This project will examine if computerized cognitive remediation will improve working memory and attention in 25 adults with a mild, moderate, or severe brain injury and compare their cognitive performance to the control group of 25 adults with a mild, moderate, or severe brain injury. The control group will train on computerized Brain Games. Participants in both groups will be assessed prior to training and immediately post-training and one month-post training.