I’ll jump in here with an anecdote about an acquaintance who was involuntarily hospitalized (twice) in a psychiatric hospital in the Canton of Vaud. The first time she was hospitalized she was there for a year. She was given a brain scan because the staff thought she had a lesion that was causing her to believe that her ex was an imposter (Capgras Syndrome). That would tie in with the idea of “organic” but of course, they found no lesion. To be involuntarily committed in the Canton of Vaud doesn’t mean that you are not allowed to leave the hospital. On the contrary. She was free to leave for the day, no one bothered to ask her where she was going, and i suppose if she didn’t show up for dinner, maybe the staff would go looking for her, but where would they even begin to look? She was usually somewhere miles away.