Expressive stress relievers

In this paper we describe three tangible interfaces that recognize stress by how they are manipulated and provide tactile feedback to support stress reduction. They were developed following a research through design methodology, in an iterative process of observing behavior, building prototypes, and evaluating them in their context. The three interactive prototypes named Squeeze-it, Marmoro, and Wigo measure squeezing, and two types of rolling behavior respectively. Goal of this project was to evaluate in a quick and informal way what types of relaxing feedback are best suited for different behavioral expressions of stress.