Older Adults, Methadone, and Cognitive Function

"15 days Smartphone/Cellphone tasks: Using NeuroUX smartphone testing software, Cognitive games/tasks lasting approximately 3-4 minutes each will be administered through the a smartphone application and will be prompted via text message twice per day across 15 consecutive days in the morning (8-11am) and evening (5-8). Tasks were chosen to measure aspects of diverse aspects of cognitive that are impaired among patients taking methadone, including N-back task (working memory), the Stroop Task (executive function/cognitive control), and the Variable Difficulty List Memory Test (learning and memory). The 15 days will include two types of task administration: a) Testing Phase: tasks administered at a consistent, fixed difficulty level (days 1-5) b) Remediation Phase: increasing task difficulty in response to participant performance (days 6-15). To encourage adherence, researchers will contact participants to remind them of task completion."