My 62 yr old husband has developed stroke induced Parkinson's...the movement disorder neurologist believes. He will soon take the psychological battery testing (3rd time) to try to identify what type neurological disease he actually has. I know PD meds, depression, and many things can cause his progressive cognitive decline. However, lately he is much more confused, frustrated with himself, and gets easily agitated, especially when asked any questions that requires him to think. It has been 5 yrs since the significant brain bleed and 2 yrs since the PD diagnosis. Once these tests are evaluated, what should I do or ask to get my husband to the correct expert? Our primary dr, former neurologist, and movement disorder dr. don't seem to know what to do with his mental state even after those previous tests. I don't want to "try out" drs. anymore; what type specialist should I ask for?