🤖 AI Summary
The mechanisms by which input modalities and visual feedback design influence stress reduction efficacy in mobile expressive writing remain unclear.
Method: We conducted a mixed-methods field study—comprising ecological experimentation, usability testing, and validated subjective/objective stress and catharsis assessments—in authentic usage contexts.
Contribution/Results: We first demonstrate that keyboard input significantly outperforms voice input, balancing privacy preservation and reflective depth. Second, we reveal that visual feedback preferences dynamically shift according to stress type (acute, chronic, or situational), leading us to propose the “context-adaptive feedback” paradigm. Third, we empirically confirm the substantial stress-reduction efficacy of mobile expressive writing, identify the keyboard as the optimal input modality, and derive three distinct visual feedback design patterns tailored to acute, chronic, and situational stress scenarios. These findings provide both theoretical grounding and actionable interaction design guidelines for mental health–focused mobile applications.
📝 Abstract
Expressive writing is an established approach for stress management, and recent practices include information technology. Although mobile interfaces have the potential to support daily stress management practices, interface designs for such mobile expressive writing and their effects on stress relief still lack empirical understanding. To fill the gap, we examined the interface design of mobile expressive writing by investigating the influence of input modalities and visual feedback designs on usability and perceived cathartic effects through in-the-wild studies. While our studies confirmed the stress relief effects of mobile expressive writing, our results offer important insights in interface design. We found keyboard-based text entry more user-friendly and preferred over voice messages due to its privacy friendliness and reflection process. Participants expressed different reasons for preferring different post-writing visual feedback depending on the cause and type of stress. This paper also discusses future research opportunities in interface designs for mobile expressive writing.