Abstract
Bioethics, neuroscience, medicine are contributing to a debate on the definition and criteria of death. This topic is very controversial, and it demonstrates clashing views on the meaning of human life and death. Official medical and legal positions agree upon a biological definition of death as irreversible cessation of integrated functioning of the organism as a whole, and whole-brain criterion to ascertain death. These positions have to face many criticisms: some scholars speak of logical and practical inconsistency, some others of invalid scientific theory about the supreme integrator. In this paper some criticisms are exposed and discussed in order to reconstruct the state of the art in bioethical debate.