About a year and a half ago my husband was diagnosed with "mild, cognitive impairment" by a neurologist. He has always had trouble remembering names and that is getting worse. He says and does hateful things when it's usually just the two of us in a room. Of course later he denies saying them. Sometimes it's even a whole story, usually about something happening to him or his family in the past. He's normally a real likeable guy, but these situations are starting to take a toll on me. Is this a form of dementia? His doctor has prescribed medicine normally given to Alzheimers patients but she told us to not be alarmed when we saw an advertisement on tv for this med. Also he takes Zoloft for depression. What can I expect - a slow downhill slide?