A noted philosopher and member of the Institute for Cognitive and Brain Science examines flaws in current understandings about consciousness while proposing a radical solution that argues that consciousness must not be limited to the confines of the brain.

The application of neuroimaging technology to the study of the injured brain has transformed how neuroscientists understand disorders of consciousness, such as the vegetative and minimally conscious states, and deepened our understanding of mechanisms of recovery. This scientific progress, and its potential clinical translation, provides an opportunity for ethical reflection. It was against this scientific backdrop that we convened a conference of leading investigators in neuroimaging, disorders of consciousness and neuroethics. Our goal was to develop an ethical frame to move (...) these investigative techniques into mature clinical tools. This paper presents the recommendations and analysis of a Working Meeting on Ethics, Neuroimaging and Limited States of Consciousness held at Stanford University during June 2007. It represents an interdisciplinary approach to the challenges posed by the emerging use of neuroimaging technologies to describe and characterize disorders of consciousness. (shrink)

Neuroimaging studies of brain-damaged patients diagnosed as in the vegetative state suggest that the patients might be conscious. This might seem to raise no new ethical questions given that in related disputes both sides agree that evidence for consciousness gives strong reason to preserve life. We question this assumption. We clarify the widely held but obscure principle that consciousness is morally significant. It is hard to apply this principle to difficult cases given that philosophers of mind distinguish between a range (...) of notions of consciousness and that is unclear which of these is assumed by the principle. We suggest that the morally relevant notion is that of phenomenal consciousness and then use our analysis to interpret cases of brain damage. We argue that enjoyment of consciousness might actually give stronger moral reasons not to preserve a patient's life and, indeed, that these might be stronger when patients retain significant cognitive function. (shrink)

If ever I summon before me my highest ideals of men and medicine, I find them sprung from the spirit of Osler. —Wilder Penfield, M.D. Neuroethics is a recently coined term that is shaping our cultu...

The article addresses the potential impact of functional brain imaging (functional magnetic resonance imaging and positron-emission tomography) on surrogate end-of-life decision-making in light of varying state-law definitions of consciousness, some of which define awareness behaviorally and others functionally. The article concludes that, in light of admonitions by neuroscientists that functional brain imaging cannot yet replace behavioral evaluation to determine the existence of consciousness, state legislatures, courts and drafters of written advance healthcare directives should consider treating behavior, not function, as the (...) touchstone for end-of-life decision-making. (shrink)