This video explains the technique from the paper:
Temporal Resolution Multiplexing: Exploiting the limitations of spatio-temporal vision for more efficient VR rendering
by Gyorgy Denes, Kuba Maruszczyk, George Ash, Rafał K. Mantiuk
Published in: EEE Transactions on Visualization and Computer Graphics, 2019
Project web site: https://www.cl.cam.ac.uk/research/rainbow/projects/trm/
(including the same video but encoded with higher quality).