This article demonstrates how debate about technologically manipulated
death is elaborated in radically different forms in the scientificall
y sophisticated spaces of Japan and North America. Using recent histor
ical materials and contemporary medical, philosophical, and media publ
ications, I argue that the institutionalization and legitimization of
''brain death'' as the end of life in North America have been Purified
by a dominant discourse in which it is asserted that if certain measu
rable criteria are fulfilled, an individual can be declared scientific
ally dead. In Japan, by contrast, death is interpreted primarily as a
social and not an individual event, and efforts to scientifically defi
ne the end of life as a measurable point in time are rejected outright
by the majority, including many clinicians. The margins between natur
e and culture are debated in both cultural spaces, bur assigned differ
ent moral status in the respective dominant discourses.