Objective: Assistive technology for cognition (ATC) is reviewed and 2 case studies presented. Participants: Study 1, a 19-year-old man, with topographical disorientation after traumatic brain injury (TBI); Study 2, a 71-year-old woman with cognitive declines associated with TBI and a pre-injury history of chronic ischemic changes. Design and Interventions: To assess ATC intervention, Study 1 used an ABAЈ design for a navigation task; Study 2 used a modified ABAB design for setting an alarm clock. Main Outcome Measures: Study 1, average errors per route; Study 2, average errors per task substep and number of substeps attempted. Results: For Study 1, navigation errors reduced with ATC; without ATC, partial improvement was maintained, with greater intertrial variability. For Study 2, performance errors reduced with ATC and all substeps were completed; without ATC, errors persisted, but declined across trials, suggesting learning. Conclusions: ATC interventions can facilitate functional performance and contribute to learning of specific adaptive skills. Wireless, interactive, Web-based interventions appear particularly suited to tasks in the home and community, permitting remote intervention and monitoring of task status.

The target behavior was modified successfully. The participant adopted a specific cue-appropriate strategy. Since a variety of alternative response strategies may be required of a person, given a range of context-specific social practices and community settings, the importance of context-sensitive assistive technology cue repertoires is discussed.