The Oxford Biblical Studies Online and Oxford Islamic Studies Online have retired. Content you previously purchased on Oxford Biblical Studies Online or Oxford Islamic Studies Online has now moved to Oxford Reference, Oxford Handbooks Online, Oxford Scholarship Online, or What Everyone Needs to Know®. For information on how to continue to view articles visit the subscriber services page.

Related Content

Related Overviews


More Like This

Show all results sharing these subjects:

  • Science and technology
  • Psychology


Show Summary Details


contingent negative variation

Quick Reference

A type of event-related potential, believed to indicate attention, consisting of a large negative change in potential voltage across the cerebral cortex, especially in the frontal lobe, that develops slowly in a person who is actively expecting the occurrence of some significant stimulus requiring a response. It is observable as an evoked potential occurring typically during the 1–2 seconds after a warning signal is given. See also P300. Compare readiness potential. CNV abbrev.

Reference entries