Mobile Assessments of Mood, Cognition, Smartphone-Based Sensor Activity, and Variability in Craving and Substance Use in Patients With Substance Use Disorders in Norway: Prospective Observational Feasibility Study

Anders Dahlen Forsmo Lauvsnes   ^{1, 2} , MSc, MM ;   Tor Ivar Hansen   ³ , MSc, PhD ;   Sebastian Øiungen Ankill   ^{1, 4} , MSc ;   Sang Won Bae   ⁵ , MSc, PhD ;   Rolf W Gråwe   ^{1, 6} , MSc, PhD ;   Taylor A Braund   ^{7, 8} , PhD ;   Mark Larsen   ^{7, 8} , PhD ;   Mette Langaas   ⁴ , MSc, PhD

¹ Department of Mental Health, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway

² Clinic of Substance Use and Addiction Medicine, St Olavs University Hospital, Trondheim, Norway

³ Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway

⁴ Department of Mathematical Sciences, Faculty of Information Technology and Electrical Engineering, Norwegian University of Science and Technology, Trondheim, Norway

⁵ Human-Computer Interaction and Human-Centered AI Systems Lab, AI for Healthcare Lab, School of Systems and Enterprises, Stevens Institute of Technology, Hoboken, NJ, United States

⁶ Department of Research and Development, Division of Psychiatry, St Olavs University Hospital, Trondheim, Norway

⁷ Black Dog Institute, Sydney, Australia

⁸ Faculty of Medicine and Health, University of New South Wales, Sydney, Australia