Dr. Paolo Cassano presented at the Photobiomodulation Virtual Summit, NAALT (October 1-3, 2021) on the personalization of tPBM dose for depression, anxiety, and PTSD. He exposed a theory related to dosimetry and dose-dependent, direct and indirect effects of PBM.
https://www.massgeneral.org/psychiatry/treatments-and-services/brain-photobiomodulation-clinic
https://www.facebook.com/MGHBrainPhotobiomodulation