My mother, who has Alzheimer's Disease, has recently begun having episodes where she believes that our father who passed away 17 years ago, is late coming home from work and she has not heard from him. She is very concerned about him and wants us to try to find him. She also has had times when she asks us to help her find her children who have gone out to play and haven't come home yet and it is getting dark. With both of these types of episodes, she responds that "she knows" when we explain to her that our father passed away and her children are grown. Within 30 minutes, she has no memory of these episodes at all. Is this something that is to be expected with Alzheimer's? We took her to her doctor to make sure there was no other reason for this and none was found. Up until now, she has been able to continue living in her home with visits and help from us. Should we be considering home health care or other options since this has begun to happen? It is so hard to know what to do. Thank you for any advice you can provide.