Faculty/Staff Resources Student Resources
University of Southern California
University of Southern California
USC Chan Division of Occupational Science and Occupational Therapy
USC Chan Division of Occupational Science and Occupational Therapy
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Raymond Hernandez

Faculty Mentor: Beth Pyatak PhD, OTR/L, CDCES, FAOTA

Research Lab: Lifestyle Redesign for Chronic Conditions (LRCC)

Year of Entry: 2017

Raymond Hernandez

My research interest lies in contributing to efforts to understand the demands of everyday activities and their impact on well-being, capacity for self-regulation, and cognitive performance. The overall demand of an activity can be measured by considering all its different types of demands including those mental, physical, emotional (e.g., frustration), and temporal (e.g., time pressure) in nature. These demands come with an associated physiological stress response, and as such there is a limit to the total amount of demands our bodies can experience. Whether or not activities are truly stressful or relaxing, physiologically, may depend on the demands required by them.

My current goals are to help advance measurement of activity demands through self-report, and in the future, to capture the physiological effects of the total demands placed on our bodies using smartphones and/or wearable technology. My goal is to develop tools that will provide metrics to help people determine if their everyday pattern of activities need to be adjusted (e.g., changing the number of high or low demand activities in which they engage) to improve or maintain well-being, capacity for self-regulation, and/or cognitive performance.


Master of Science (MS) in Occupational Therapy
2015 | California State University, Dominguez Hills

Bachelor of Science (BS) in Psychobiology
2012 | University of California, Los Angeles


Journal Articles

Hernandez, R., Pyatak, E. A., Vigen, C. L., Jin, H., Schneider, S., Spruijt-Metz, D., & Roll, S. C. (2021). Understanding worker well-being relative to high-workload and recovery activities across a whole day: Pilot testing an ecological momentary assessment technique. International Journal of Environmental Research and Public Health, 18(19), 10354. https://doi.org/10.3390/ijerph181910354 Show abstract

Pyatak, E. A., Hernandez, R., Pham, L., Mehdiyeva, K., Schneider, S., Peters, A., Ruelas, V., Crandall, J., Lee, P.-J., Jin, H., Hoogendoorn, C. J., Crespo-Ramos, G., Mendez-Rodriguez, H., Harmel, M., Walker, M., Serafin-Dokhan, S., Gonzalez, J. S., & Spruijt-Metz, D. (2021). Function and emotion in everyday life with type 1 diabetes (FEEL-T1D): A fully remote intensive longitudinal study of blood glucose, function, and emotional well-being in adults with type 1 diabetes. JMIR Research Protocols. Advance online publication. https://doi.org/10.2196/30901 Show abstract

Hernandez, R., Vidmar, A., & Pyatak, E. A. (2020). Lifestyle balance, restful and strenuous occupations, and physiological activation. Journal of Occupational Science, 27(4), 547-562. https://doi.org/10.1080/14427591.2020.1732229 Show abstract

Conference Presentations/Proceedings

Hernandez, R., Gonzalez, J. S., & Pyatak, E. A. (2021, September). Investigating daily rest and leisure frequency as potential moderators of the relationship between strenuous (high demand) activity frequency and perceived whole day workload. Poster presented virtually at the Work, Stress, and Health Conference.

Hernandez, R. (2019, November). Activity focused view of stress, recovery, and allostatic load. Paper presented at the Work, Stress, and Health Conference, Philadelphia, PA.

Hernandez, R. (2019, April). Neuroendocrine model of occupational balance. Poster presented at the School of Dentistry Research Day, University of Southern California, Los Angeles, CA.

Hernandez, R. (2018, October). Allostatic load as physiological indicator of occupational imbalance. Paper presented at the Society for the Study of Occupation, Lexington, KY.

Hernandez, R., Carandang, K., Concha-Chavez, A., Díaz, J., Blanchard, J., & Pyatak, E. (2018, April). The REAL Diabetes Study: Evidence-based OT intervention strategies to improve clinical outcomes and quality of life for clients with diabetes. Poster presented at the School of Dentistry Research Day, University of Southern California, Los Angeles, CA.

Pyatak, E., Hernandez, R., Díaz, J., Carandang, K., Blanchard, J., & Vigen, C. (2018, April). Habit formation in an occupational therapy self-management intervention: The Resilient, Empowered, Active Living (REAL Diabetes) study. Paper presented at the meeting of the Society of Behavioral Medicine, New Orleans, LA.