This thesis explores the acceptability and usability of a novel shape-changing biofeedback device, termed a Physical Artefact for Well-being Support (PAWS). Positioned at the intersection of haptic technology, tangible user interfaces, and data physicalizations, PAWS is specifically designed to enhance mental health and well-being interventions by enriching the experience. The device aims to provide a transdiagnostic approach to mental health augmentation, addressing the limitations of traditional digital mental health interventions (DMHIs), such as low user engagement. Empirical evidence from two randomised control pilots indicated that PAWS improved physical and psychological engagement, positioning it as a potential alternative tool that may offer a more inclusive, effective approach to mental health support. Additionally, two further studies employing mixed-method usability assessments and qualitative feedback from practitioners examined the challenges and opportunities for real-world implementation. These studies highlighted critical physical characteristics that could increase the likelihood of successful adoption. Future research should focus on exploring the outcomes of biofeedback and shape-changing interactions, broadening their application across diverse populations, and thoroughly testing their effectiveness in clinical settings.
Physical Artefacts for Well-being Support: A Transdiagnostic Opportunity For Improving Digital Mental Health Interventions
Farrall, A. (Author). 10 Sept 2025
Student thesis: Doctoral Thesis › Doctor of Engineering (EngD)