If you have PSP or CBD, or care for someone who has these diseases, you may be interested in the following video by Dr Nikolaus McFarland who is Associate Professor of Neurology at the University of Florida, so if you have a spare hour, please watch.
In his speech he takes an in-depth look at both PSP and CBD and he covers topics which include:
difficulties with early diagnosis; use of PET scans
differences between PSP and CBD
the latest on trials/treatment
different variants / phenotypes
progress being made
youtube.com/watch?v=ocS6FLB...
I learnt a lot!