I noticed what is, for me at least, a new educational resource for catatonia. There’s an aricle about it in the March 2023 issue (Vol.51, No. 3) of Clinical Psychiatry News. The resource is available at University of Rochester Medical Center website. They include pdf files and training videos for assessment of catatonia.
There are also links for information about catatonia:
The University of Rochester presentation has has demo videos using a standardized patient (a physician, Dr. Joshua Wortzel) and a teacher, Dr. Mark Oldham.
I saw cases of catatonia while I was a consultation-liaison psychiatrist at The University of Iowa Hospitals & Clinics and they often had medical causes. My YouTube video lecture on Catatonia, Neuroleptic Malignant Syndrome, and Serotonin Syndrome is still getting views after 4 years.