The motivation for use of biosensors in audiovisual media is made by highlighting problem of signal loss due to wide variability in playback devices. A metadata system that allows creatives to steer signal modifications as a function of audience emotion and cognition as determined by biosensor analysis.
Scott Daly, Evan Gitterman, Dan Darcy, Shane Ruggieri, "Biosensors for landing creative intent" in Electronic Imaging, 2023, pp 254-1 - 254-15, https://doi.org/10.2352/EI.2023.35.10.HVEI-254