👋🏼 I’m an HCI researcher at the intersection of technology, behavior, and health.
I am currently a Ph.D. candidate studying health informatics 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 a healthy and positive relationship with health behaviors for sustainable behavior change.
CVSoo Ji Serisse Choi
Keywords: Human-centered Design (HCD), User Experience (UX), Long-term Behavior Change, Physical Activity, Intrinsic Motivation, Affective associations and Beliefs, Identity and Values, Personalized and Adaptive Interventions.
Relative fields: mobile Health (mHealth), Human-computer Interaction (HCI), Behavioral Science and Psychology, Personal Health Informatics, Preventive Medicine, Digital Therapeutics (DTx).
Research Methods: Needs Assessments and Interviews, Participatory Designs and Co-designs, Randomized Controlled Trials (RCTs), Factorial Designs, Just-in-time Adaptive Interventions (JITAIs), Micro-randomized Trials (MRT).
Improving Affective Associations with Physical Activity via Message-Based Mobile Health Interventions: A Proof-of-Concept Trial of the WalkToJoy Intervention
Published on August 2025
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.
Evaluating An mHealth Just-In-TimeAdaptive Intervention (JITAI) For Managing Hypertension: Findings On Dynamic Shifts In User Needs And Perceived Value Of Intervention Support
Pre-submission
Improving affective valuations of physical activity with mobile technology: A protocol for a hybrid factorial/micro-randomized trial
Submitted on August 2022
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
A Physical Activity Just-in-time Adaptive Intervention Designed in Partnership With a Predominantly Black Community: Virtual, Community-Based Participatory Design
Published on March 2022
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.
Evaluation of Visual Induced Motion Sickness from Head Mounted Display using Heartbeat Evoked Potential: A Cognitive Load-Focused Approach
Published on December 2021
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
Method and apparatus for measuring emotional contagion
Published on December 2021
Park, S. I., Whang, M. C., Choi, S. J., Lee, D. W., & Mun, S. C. (2021). U.S. Patent Application No. 16/906,791.
Measurement of emotional contagion using synchronization of heart rhythm pattern between two persons: Application to sales managers and sales force synchronization
Published on March 2019
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
Development of ‘LightMeCup’ prototypes using entry-level 3D printers
Presented on January 2019
Choi, S. J., Lee, S., & Won, M. (2019). Development of ‘LightMeCup’ prototypes using entry-level 3D printers.
HCI Korea 2019 Conference of the HCI Society of Korea (pp. 932-937).
Walk2Joy 2.0. Improving Affective Associations and Identity with Physical Activity for Middle-aged to Older Adults with an Adaptive mHealth Intervention. MRT Study.
MOVIN-HF. MObile health intervention to INcrease activity in Heart Failure. Human-Centered Design Study.
ADAPT. A mHealth Physical Activity Intervention for Cardiac Rehab Patients. A Formative Study, and A Micro-Randomized Trial.
myBPmyLife2. A mHealth, Multi-behavioral JITAI Intervention for Managing Medication Adherence for Hypertension Management.
myBPmyLife. A mHealth, Multi-behavioral JITAI Intervention for Hypertension Management. A Participatory Design, RCT with embedded MRT Study.