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OneNote Meal: A Photo-Based Diary Study for Reflective Meal Tracking.
Johnna Blair1, Yuhan Luo2, Ning F Ma1
1Pennsylvania State University, State College, Pennsylvania, USA.
AMIA ... Annual Symposium Proceedings. AMIA Symposium
|March 1, 2019
Summary
Tracking healthy or unhealthy meals using photo-based diet diaries enhances behavior awareness. Meal valence influences self-reflection and food choices, guiding the design of reflective meal tracking systems.
Area of Science:
- Human-Computer Interaction
- Behavioral Science
- Nutritional Informatics
Background:
- Self-monitoring tools can enhance behavior awareness through reflection.
- Photo-based meal tracking is a common self-monitoring technique.
- The design of these tools can influence user reflection and behavior.
Purpose of the Study:
- To examine the effect of "meal valence" (healthy vs. unhealthy) on reflection in photo-based meal tracking.
- To investigate how imposing valence impacts users' dietary awareness, self-reflection, and food choice intentions.
- To inform the design of more effective reflective meal tracking systems.
Main Methods:
- A four-week between-subjects diary study with 22 college students.
- Two conditions: participants tracked either only healthy or only unhealthy meals via photos and text rationalizations.
- Analysis of self-reported dietary awareness, meal assessment, self-reflection, and food choice intention.
Main Results:
- Participants in both groups increased their dietary awareness.
- Meal valence significantly influenced participants' meal assessment, self-reflection, and intention to change food choices.
- Different valence conditions led to distinct patterns in user reflection and behavior.
Conclusions:
- Imposing meal valence in photo-based tracking can foster dietary awareness and reflection.
- The valence of tracked meals differentially impacts users' psychological and behavioral outcomes.
- Designers can leverage meal valence to create more impactful reflective meal tracking applications.
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