Informed Consent, Error and Suspending Ignorance: Providing Knowledge or Preventing Error?

Arnon Keren, Ori Lev

Research output: Contribution to journalArticlepeer-review


The standard account of informed consent has recently met serious criticism, focused on the mismatch between its implications and widespread intuitions about the permissibility of conducting research and providing treatment under conditions of partial knowledge. Unlike other critics of the standard account, we suggest an account of the relations between autonomy, ignorance, and valid consent that avoids these implausible implications while maintaining the standard core idea, namely, that the primary purpose of the disclosure requirement of informed consent is to prevent autonomy-undermining ignorance. The problem with the standard account, we argue, is that it fails to distinguish between different forms of ignorance–in particular, error and suspending ignorance–that have very different effects on individuals’ ability to provide valid consent. While error often undermines our ability to provide valid consent, suspending ignorance, we argue, does not. Once the moral weight of this distinction is appreciated, it becomes apparent that valid informed consent requires far less knowledge than suggested by the standard account.

Original languageEnglish
JournalEthical Theory and Moral Practice
StateAccepted/In press - 2022

Bibliographical note

Funding Information:
Research on this paper was generously funded by the Israel Science Foundation (Grant No. 650/18). Versions of this paper were presented at the Mancept Workshop on Autonomy, and at colloquia at the Hebrew University of Jerusalem, London Bioethics Colloquium, University of Haifa and at the Uehiro Centre for Practical Ethics at the University of Oxford. For helpful comments, we are grateful to the audiences at these meetings, and to Aliza Avraham, David Enoch, David Heyd, Annette Rid, Julian Savulescu, Saul Smilansky and Daniel Statman.

Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature B.V.


  • Autonomy
  • Error
  • Ignorance
  • Informed Consent

ASJC Scopus subject areas

  • Philosophy
  • Social Sciences (miscellaneous)


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