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Research Article

Sleep deprivation and false confessions

Steven J. Frenda, Shari R. Berkowitz, Elizabeth F. Loftus, and Kimberly M. Fenn
PNAS February 23, 2016 113 (8) 2047-2050; first published February 8, 2016; https://doi.org/10.1073/pnas.1521518113
Steven J. Frenda
aDepartment of Psychology, The New School for Social Research, New York, NY 10011;
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Shari R. Berkowitz
bCollege of Business Administration & Public Policy, California State University, Dominguez Hills, Carson, CA 90747;
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Elizabeth F. Loftus
cDepartment of Psychology & Social Behavior, University of California, Irvine, CA 92697;
dDepartment of Criminology, Law & Society, University of California, Irvine, CA 92697;
eDepartment of Cognitive Sciences, University of California, Irvine, CA 92697;
fSchool of Law, University of California, Irvine, CA 92697;
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  • For correspondence: eloftus@uci.edu
Kimberly M. Fenn
gDepartment of Psychology, College of Social Sciences, Michigan State University, East Lansing, MI 48824
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  1. Contributed by Elizabeth F. Loftus, December 30, 2015 (sent for review November 2, 2015; reviewed by Michael W. L. Chee and Saul Kassin)

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Significance

False confessions occur surprisingly frequently in the context of interrogations and criminal investigations. Indeed, false confessions are thought to account for approximately 15–25% of wrongful convictions in the United States. Here we demonstrate that sleep deprivation increases the likelihood that a person will falsely confess to wrongdoing that never occurred. Furthermore, our data suggest that it may be possible to identify certain individuals who are especially likely to falsely confess while sleep deprived. The present research is a crucial step toward understanding the role of sleep deprivation in the problem of false confession and, in turn, raises complex questions about the use of sleep deprivation in the interrogation of innocent and guilty suspects.

Abstract

False confession is a major contributor to the problem of wrongful convictions in the United States. Here, we provide direct evidence linking sleep deprivation and false confessions. In a procedure adapted from Kassin and Kiechel [(1996) Psychol Sci 7(3):125–128], participants completed computer tasks across multiple sessions and repeatedly received warnings that pressing the “Escape” key on their keyboard would cause the loss of study data. In their final session, participants either slept all night in laboratory bedrooms or remained awake all night. In the morning, all participants were asked to sign a statement, which summarized their activities in the laboratory and falsely alleged that they pressed the Escape key during an earlier session. After a single request, the odds of signing were 4.5 times higher for the sleep-deprived participants than for the rested participants. These findings have important implications and highlight the need for further research on factors affecting true and false confessions.

  • false confession
  • sleep deprivation
  • sleep

Footnotes

  • ↵1To whom correspondence should be addressed. Email: eloftus{at}uci.edu.
  • Author contributions: S.J.F., S.R.B., E.F.L., and K.M.F. designed research; S.J.F. and K.M.F. performed research; S.J.F. and K.M.F. analyzed data; and S.J.F., S.R.B., E.F.L., and K.M.F. wrote the paper.

  • Reviewers: M.W.L.C., Duke NUS Graduate Medical School; and S.K., John Jay College of Criminal Justice.

  • The authors declare no conflict of interest.

  • This article contains supporting information online at www.pnas.org/lookup/suppl/doi:10.1073/pnas.1521518113/-/DCSupplemental.

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Sleep deprivation and false confessions
Steven J. Frenda, Shari R. Berkowitz, Elizabeth F. Loftus, Kimberly M. Fenn
Proceedings of the National Academy of Sciences Feb 2016, 113 (8) 2047-2050; DOI: 10.1073/pnas.1521518113

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Sleep deprivation and false confessions
Steven J. Frenda, Shari R. Berkowitz, Elizabeth F. Loftus, Kimberly M. Fenn
Proceedings of the National Academy of Sciences Feb 2016, 113 (8) 2047-2050; DOI: 10.1073/pnas.1521518113
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