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Advance Medical Decision-Making Differs Across First- and Third-Person Perspectives.

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Summary
This summary is machine-generated.

Laypeople are more likely to respect a future incapacitated self's wishes when deciding for others than for themselves. This suggests personal identity and relationships influence healthcare decision-making, not just cognitive capacity.

Keywords:
Medical decision-makingadvance directivesexperimental bioethicsself/othertrue self

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Area of Science:

  • Bioethics
  • Cognitive Psychology
  • Medical Decision-Making

Background:

  • Advance healthcare decision-making often assumes prior preferences (T1) should override later ones (T2) made during cognitive decline.
  • This assumption is ethically debated, with limited understanding of public lay judgments.

Purpose of the Study:

  • Investigate lay judgments on which healthcare preference (T1 vs. T2) should be respected.
  • Examine if judgments differ based on decision-maker perspective (self vs. third-party).

Main Methods:

  • Vignette-based survey of 1445 US adults (gender-balanced).
  • Manipulated relationship (self, best friend, stranger), T1 preference (treat/not treat), and T2 preference (ambiguous/unambiguous).

Main Results:

  • Participants more often deferred to a third-party's T2 preference than their own T1 preference.
  • Decisions for incapacitated others were more likely to be respected if they were considered the 'true self'.

Conclusions:

  • Lay intuitions about respecting decisions are influenced by perceived personal identity ('true self') and relationships.
  • Cognitive capacity alone may not solely determine ethical entitlement to have decisions respected in healthcare.