Mild cognitive impairment (MCI) is a well-recognized risk factor for both AD and functional dependence. Within the broader assessment of cognitive function, the literature suggests that executive functioning - the ability to concentrate, to attend selectively, to plan and strategize - is a robust cognitive predictor of functional status in seniors. Specifically, Royall and colleagues demonstrated executive functioning independently explained 43% of the functional status in community-dwelling seniors dementia. The researchers will investigate executive functioning in seniors with MCI.