Attention detection in mixed reality environments

In a previous study we studied whether familiarity with scene content improve detection of scene changes in a  desktop 3D virtual reality environment.
https://www.sciencedirect.com/science/article/pii/S0747563210000749
In this new project we will create mixed reality environments on Microsoft Hololens-2 and explore how attention be captured by different stimuli.
Development environment: Unity 3D Game engine, C#, Microsoft Hololens-2
This will be a group work project and interdisciplinary team is preferred.