A systematic, functionally-oriented service of therapeutic cognitive activities, based on an assessment and understanding of the person’s brain behavior deficits. Services are directed to achieve functional changes: by (1) reinforcing, strengthening or re-establishing previously learned patterns of behavior, or (2) establishing new patterns of cognitive activity or compensatory mechanisms for impaired neurological systems. Therapeutic interventions include but are not limited to direct retraining, use of compensatory strategies, use of cognitive orthotics and prostheses. Activity type and frequency are determined by assessment of the participant, the development of a treatment plan based on recognized deficits, and periodic reassessments. Cognitive therapy can be provided in the individual’s home or community settings.