👋🏼 I'm an HCI researcher at the intersection of technology, behavior, and health.
PhD Candidate at the University of Michigan School of Information
Soo Ji Serisse Choi
soojc@umich.edu
soojc@umich.edu
PhD Candidate at the University of Michigan School of Information
I am currently a Ph.D. candidate at the School of Information, University of Michigan. Co-advised by Dr. Mark W. Newman and Dr. Pedja Klasnja, I study how mobile health (mHealth) technologies can help people build healthy and long-lasting behavior change.
I study how mobile health (mHealth) technologies can support people in building a healthy and sustainable relationships with health behaviors like physical activity, especially among middle-aged and older adults. By integrating insights from behavioral medicine and psychology with human-centered design, my work aims to understand the underlying mechanisms that drive lasting change (i.e., intrinsic motivation, values and identity) to design interventions that are both theory-driven and adaptive to users' dynamic and personal needs. My goal is to bridge the fields of Human-Computer Interaction (HCI) and behavioral medicine, designing solutions that empower individuals to make lasting, meaningful changes in their everyday lives.
Human-centered Design (HCD), User Experience (UX), Long-term Behavior Change, Physical Activity, Intrinsic Motivation, Affective associations and Beliefs, Identities and Values, Personalized and Adaptive Interventions
mobile Health (mHealth), Human-computer Interaction (HCI), Behavioral Science and Medicine, Personal Health Informatics, Preventive Medicine, Digital Therapeutics (DTx)
Needs Assessments and Interviews, Participatory Designs and Co-designs, Micro-randomized Trials (MRT), Factorial Designs, Just-in-time Adaptive Interventions (JITAIs), Randomized Controlled Trials (RCTs)
Choi, S. J. S., Hung, P. Y., Liu, M., Dempsey, W., Newman, M. W., & Klasnja, P. (2025). Improving Affective Associations With Physical Activity via a Message-Based mHealth Intervention (WalkToJoy): Proof-of-Concept Study. Journal of Medical Internet Research, 27, e75792.
Choi, S. J. (2022). Improving affective valuations of physical activity with mobile technology: A protocol for a hybrid factorial/micro-randomized trial. Deep Blue. https://dx.doi.org/10.7302/5862
Robles, M. C., Newman, M. W., Doshi, A., Bailey, S., Huang, L., Choi, S. J., ... & Skolarus, L. E. (2022). A Physical Activity Just-in-time Adaptive Intervention Designed in Partnership With a Predominantly Black Community: Virtual, Community-Based Participatory Design Approach. JMIR Formative Research, 6(3), e33087.
Park, S., Kim, L., Kwon, J., Choi S. J., & Whang M. (2021). Evaluation of visual-induced motion sickness from head-mounted display using heartbeat evoked potential: a cognitive load-focused approach. Virtual Reality. https://doi.org/10.1007/s10055-021-00600-8
Park, S. I., Whang, M. C., Choi, S. J., Lee, D. W., & Mun, S. C. (2021). U.S. Patent Application No. 16/906,791.
Park, S., Choi, S. J., Mun, S., & Whang, M. (2019). Measurement of emotional contagion using synchronization of heart rhythm pattern between two persons: Application to sales managers and sales force synchronization. Physiology & behavior, 200, 148-158. https://doi.org/10.1016/j.physbeh.2018.04.022