There are others. And sometimes a person can have more than one form of dementia. I never knew that. Amazing.
I figure out a series of events to lead to the finish of a project. People with FTD don't do that anymore.
So, when someone may come up to you and say something TOTALLY inappropriate ( your weight, your parenting, your clothes) please , be aware, be open minded, be cognizant that THIS person may have a terminal non-curable debilitating brain disease. Please. Or they may be awkwardly obsessed over talking to your child...... Because they think it's normal behavior.
Obsessions can change from day to day. My husband, a corporate financial controller for a world- wide corporation, became insistent before April 15, that he had NOT filed his taxes in 15 years. I signed those yearly tax reports, I know we filed them and paid our taxes. It's so sad and frustrating to see these things progress.