A primary goal of XR are relevant and engaging user experiences, but how can we know what users find relevant and engaging? Physiological signals can complement self reports and behavioral measures when assessing users’ interactions with XR environments.
The Excite-O-Meter is a Unity plugin to include bodily signals in the development and evaluation of XR content. It is easy-to-use, scientifically validated, and widely applicable by being integrative, modular, and expandable.
Specifically, it allows to record, analyze, and visualize scientifically validated metrics of heart activity (heart rate and its variability) during XR experiences, using a commercially available low-cost chest strap (Polar H10, ~70 €) or other devices based on the lab streaming layer.
The Excite-O-Meter comprises three modules to
- receive and process physiological activity data (Physiological Signal Manager),
- log and visualize it in real time as well as create Unity events (Real Time Monitor); and
- analyze, visualize, and interpret the data offline (Offline Replay / Analysis Tool).