0 the idea that someone is believed to have given permission for something unless they say they do not, used, for example, in some countries for organ donation (= allowing your body parts to be used after you die):
Perhaps we should consider presumed consent unless they (the person dying) explicitly has said no.
We have an "opt-in" system of donation, under which those willing to give their organs on death must sign up as donors, as opposed to the "presumed consent" or "opt-out" systems.
There's an argument that presumed consent damages the vital relationship of trust between dying patients and their doctors.
More in-depth, qualitative interviews may be more useful than surveys, especially to examine attitudes toward presumed consent as a term.
One objection is that presumed consent takes away individual autonomy and that people will be disenfranchised from their own bodies.
Strategies for cadaveric organ procurement: mandated choice and presumed consent.
Most importantly, presumed consent requires a general recognition and acceptance by all members of the community.