Lauren Ungar, a clinical psychology physician at Wayne State 's Institute of Gerontology (IOG), commented in a story about the effects of Alzheimer's. Ungar said people suffering from Alzheimer's experience problems with memory judgment and thinking and eventually need total care. Peter Lichtenberg, director of the IOG, also commented in the piece about statewide epidemiological data. The Detroit area has about 10,000 to 14,000 cases of dementia, and since the city's black population hovers at 90 percent, the majority of those cases are African Americans, Lichtenberg said.