Mom's scans etc did not show anything so I took her to MARS which is Memory Assessment Research Service. It is part of UNC-Wilmington Psychology department and they do an extensive batter of Cognative and other such test to determine the levels of cognative loss and even the level of depression and intelligence level. From that they can come up with a level of Dementia. They give rescommendations for possible causes to check out as well. Then they do reevaluations every 9 months to measure the progression. It has been a valuable tool in Mom's case. Their hope is that through these test that they can develop a protocol for early diagnosis before Dementia shows up on medical test. Then the Aricept and Namenda can be started when it will do the most good.