"Psychological scientists Laura E. R. Blackie and Philip J. Cozzolino of
the University of Essex in England have been exploring the idea that we
are all governed by two disparate existential systems, each with its own
distinct method of processing the idea of death. Both existential minds
have the power to meaningfully change our attitudes and actions, but
they work in very different—almost opposite—ways."
http://www.scientificamerican.com/article.cfm?id=two-faces-of-death&WT.mc_id=SA_CAT_SP_20120206