Science Advancing the Culture of Life?

We've previously noted how recent scientific developments have impacted the abortion debate (at least in the U.K.) by expanding our knowledge of the fetus.  It now seems that scientific developments stand to enrich the debate over euthanasia, given the results of this study:

Thousands of brain-damaged people who are treated as if they are almost completely unaware may in fact hear and register what is going on around them but be unable to respond, a new brain-imaging study suggests.

Rob