Abstract
Some years ago I received a phone call telling me that my mother, then in her eighties, had been found wandering the street outside her home. It was the first indication my wife and I had of Alzheimer's disease. We arrived to discover that my mother was incoherent, with the house in disorder, bills unpaid, and perishable food in the night table rather than the refrigerator. Having spent much of my career trying to improve the assessment of decisional capacity, in part to avoid unnecessary deprivation of decision-making rights, I did not take lightly the step to have my mother declared incompetent. But it was necessary. This episode has been on my mind since I returned recently from a conference in Paris devoted to the United Nations Convention on the Rights of Persons with Disabilities