Thanks for sharing this information. Researchers at the recent Alzheimer's Association International Conference also presented results of a study that demonstrated how comparing short speech samples taken two years apart helped identify early signs of mild cognitive impairment. I recently posted results of research at the University of Florida showing how decline in the ability to smell could be used to identify early dementia. Seems like all our senses may be linked to dementia, either contributing to its onset or valuable in recognizing its onset.