Honoring a living will typically involves treating an incompetent patient in accord with preferences she once had, but whose objects she can no longer understand. How do we respect her precedent autonomy by giving her what she used to want? There is a similar problem with subsequent consent: How can we justify interfering with someone''s autonomy on the grounds that she will later consent to the interference, if she refuses now?Both problems arise on the assumption that, to respect someone''s autonomy, (...) any preferences we respect must be among that person''s current preferences. I argue that this is not always true. Just as we can celebrate an event long after it happens, so can we respect someone''s wishes long before or after she has that wish. In the contexts of precedent autonomy and subsequent consent, the wishes are often preferences about which of two other, conflicting preferences to satisfy. When someone has two conflicting preferences, and a third preference on how to resolve that conflict, to respect his autonomy we must respect that third preference. People with declining competence may have a resolution preference earlier, favoring the earlier conflicting preference (precedent autonomy), whereas those with rising competence may have it later, favoring the later conflicting preference (subsequent consent). To respect autonomy in such cases we must respect not a current, but a former or later preference. (shrink)

In advanced technological societies there is growing concern about the prospect of protracted deaths marked by incapacitation, intolerable pain and indignity, and invasion by machines and tubing. Life prolongation for critically ill cancer patients in the United States, for example, literally costs a fortune for very little benefit, typically from $82,845 to $189,339 for an additional year of life. Those who return home after major interventions live on average only 3 more months; the others live out their days in a (...) hospital intensive care unit. (shrink)

Ever since the 1960s, when medical science became capable of prolonging the dying process beyond bounds that many patients would find acceptable, people have sought “death with dignity,” or “a natural death,” or “a good death.” Once debilitation from a fatal affliction has reached a personally intolerable point, dying patients have sought to control the manner and timing of death via diverse techniques. Some sought the disconnection of life-sustaining medical interventions, such as respirators and dialysis machines. Beyond freedom from unwelcome (...) interventions, some patients intent on avoiding suffering sought access to pain relief medication—even in dosages posing some risk of hastening death. Other dying patients sought access to deep sedation, even knowing that they would never emerge from the resultant unconsciousness. Still other patients voluntarily refused to eat or drink or to accept artificial nutrition and hydration. (shrink)

Ever since the 1960s, when medical science became capable of prolonging the dying process beyond bounds that many patients would find acceptable, people have sought “death with dignity,” or “a natural death,” or “a good death.” Once debilitation from a fatal affliction has reached a personally intolerable point, dying patients have sought to control the manner and timing of death via diverse techniques. Some sought the disconnection of life-sustaining medical interventions, such as respirators and dialysis machines. Beyond freedom from unwelcome (...) interventions, some patients intent on avoiding suffering sought access to pain relief medication—even in dosages posing some risk of hastening death. Other dying patients sought access to deep sedation, even knowing that they would never emerge from the resultant unconsciousness. Still other patients voluntarily refused to eat or drink or to accept artificial nutrition and hydration. (shrink)

Severe brain injury is a leading cause of death and disability. Following severe brain injury diagnosis is difficult and errors frequently occur. Recent findings in clinical neuroscience may offer a solution. Neuroimaging has been used to detect preserved cognitive function and awareness in some patients clinically diagnosed as being in a vegetative state. Remarkably, neuroimaging has also been used to communicate with some vegetative patients through a series of yes/no questions. Some have speculated that, one day, this method may allow (...) severely brain-injured patients to make medical decisions. Yet, skepticism is rife, due in part to the inherent difficulty of assessing decision-making capacity through neuroimaging communication. In this thesis, I provide the first systematic analysis of this problem. I present and defend a strategy for assessing decision-making capacity in brain-injured patients who can only communicate through neuroimaging. (shrink)