Capgra's delusion

I love Ramachandran , he is such  a great scientist... i've always looked up to him. (thank Discovery channel)
when i was 2nd year in uni, i was inspired by him!
when i was 4th year in uni, my grandmother started to act like she had Capgra's delusion ...she didn;t recognized my grandfather and soon  her memory faded even more and she couldn't recognize us either ... then she instested on going to her home  all the time  eventhough she hadn't left  her apartment for over 20 years.
Now she is severely demanted.

This was one of the most frustrating moments in my life - I couldn't do anything :(  and so many questions stayed unanswered .