My 80 yo mother shows plenty of signs of having dementia: she is forgetful, gets confused, asks the same questions over and over, gets obsessive over things so will repeatedly call people and call her bank to check her balance, still insists on driving and will head out to a destination and then realize she's not where she intended, and loses her car when she parks in a large parking lot like WalMart; and at times appears to hallucinate- thinks she's with people when she's not or seeing people who have passed. I contacted her primary doctor and finally they got her in to see a neurologist. I'd been trying for some time to get her to one but she always came up with excuses not to go. The neurologist did an MRI and an EEG and the results have come back as "normal", although the doctor says she has "mild cognitive impairment." So she thinks she's fine and of course continues to drive. Her mother, her grandmother, and great grandmother all had dementia, but she also has psychiatric issues. So if all her tests say she's "normal", are all these behaviors from her psychiatric issues? Thanks for any insight given!