Ellie Birbeck

About Projects CV

Interactive stress ball

Jan 2017


Over two months I was part of a team of five students to create an interactive stress ball. StressLess is a working prototype which innovates on the standard stress ball by incorporating pressure sensors and connectivity.

A range of metrics are collected as a user interacts with the ball, and these can be utilised in a variety of ways through our API. Examples we envisioned include responding to the data by playing relaxing music, or controlling ambient lighting. This video demonstrates a colour-changing visualisation developed for a pilot experiment, which fades and slows at a frequency slightly below the user's own squeezing rate, encouraging them to reduce it.

The product design and system implementation are detailed in our paper along with related work and experimental results.

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