Although I am not a neurologist, I think a lot about the #variants of #PrimaryProgressiveAphasia. I wrote a #memoir about my father's #early-onset #Alzheimer's with #neurologist, #Dr.BruceMiller of #UCSF's #MemoryAndAgingCenter. It explains where in the #brain the initial assault happens and helps us understand why people can't find the right words and/or garble them and/or repeat them. After many years, I learned that my father had the #logopenic variant.