General trigger warnings are not used to address this particular subpopulation. There are medical approved techniques for people with diagnosed psychological ailments, like PTSD, but they are individualized. Psychological ailments are a very diverse set of problems with a even more diverse set of causes.

If we still try to do some general treatment for PTSD it generally comes down to reducing stress. Things like bright lights, loud noise and sudden actions are all things which are known to cause stress, which is why doctors treating PTSD patients recommend against fireworks during New Year's Eve and other national holidays. A bit different from the trigger warnings that the study explored.