Memory & Cognition

, Volume 14, Issue 4, pp 329–338 | Cite as

Discrepancy detection and vulnerability to misleading postevent information

  • James P. Tousignant
  • David Hall
  • Elizabeth F. Loftus


When people are exposed to misleading details after a witnessed event, they often claim that they saw the misleading details as part of the event. We refer to this as themisinformation effect. In four experiments, involving 570 subjects, we explored the role that discrepancy detection plays in the misinformation effect. Experiment 1 showed that subjects who naturally read a post-event narrative more slowly were more resistant to the effects of misleading information contained in the narrative. In Experiment 2, subjects who naturally read more slowly were more likely to detect a discrepancy between what they were reading and what was stored in their memory. In Experiment 3, subjects who were instructed to read slowly were more likely to detect a discrepancy than were those who were instructed to read quickly. In Experiment 4, subjects who were instructed to read slowly were more resistant to misleading postevent information. Taken together, these results suggest that longer reading times are associated with a greater scrutiny of postevent information. This leads to an increased likelihood that discrepancies will be detected and that the misinformation will be resisted.


  1. Bekerian, D. A., &Bowers, J. M. (1983). Eyewitness testimony: Were we misled?Journal of Experimental Psychology: Learning, Memory, & Cognition,9, 139–145.CrossRefGoogle Scholar
  2. Bowers, J. M., &Bekerian, D. A. (1984). When will post-event information distort eyewitness testimony?Journal of Applied Psychology,69, 466–472.CrossRefGoogle Scholar
  3. Christiaansen, R. E., Sweeney, J. D., &Ochalek, K. (1983). Influencing eyewitness descriptions.Law & Human Behavior,7, 59–65.CrossRefGoogle Scholar
  4. Cole, W. G., &Loftus, E. F. (1979). Incorporating new information into memory.American Journal of Psychology,92, 413–425.CrossRefGoogle Scholar
  5. Dodd, D. H., &Bradshaw, J. M. (1980). Leading questions and memory: Pragmatic constraints.Journal of Verbal Learning & Verbal Behavior,19, 695–704.CrossRefGoogle Scholar
  6. Greene, E., Flynn, M. S., &Loftus, E. F. (1982). Inducing resistance to misleading information.Journal of Verbal Learning & Verbal Behavior,21, 207–219.CrossRefGoogle Scholar
  7. Hertel, P. T. (1982). Remembering reactions and facts: The influence of subsequent information.Journal of Experimental Psychology: Learning. Memory, & Cognition,8, 513–529.CrossRefGoogle Scholar
  8. Hertel, P. T., Cosden, M., &Johnson, P. J. (1980). Passage recall: Schema change and cognitive flexibility.Journal of Educational Psychology,72, 133–140.CrossRefGoogle Scholar
  9. Loftus, E. F. (1979).Eyewitness testimony. Cambridge, MA: Harvard University Press.Google Scholar
  10. Loftus, E. F. (1981). Mentalmorphosis: Alterations in memory produced by mental bonding of new information to old. In J. Long & A. Baddeley (Eds.),Attention and performance IX (pp. 417–434). Hillsdale, NJ: Erlbaum.Google Scholar
  11. Loftus, E. F., Miller, D. G., &Burns, H. J. (1978). Semantic Integration of verbal information into visual memory.Journal of Experimental Psychology: Human Learning & Memory,4, 19–31.CrossRefGoogle Scholar
  12. Loftus, E. F., Schooler, J. W., &Wagenaar, W. A. (1985). The fate of memory: Comment.Journal of Experimental Psychology: General,114, 375–380.CrossRefGoogle Scholar
  13. McCloskey, M., &Zaragoza, M. (1985). Misleading postevent information and memory for events Arguments and evidence against memory impairment hypotheses.Journal of Experimental Psychology: General,114, 1–16.CrossRefGoogle Scholar
  14. Sheehan, P. W., Grigo, L, &McCann, T. (1984). Memory distortion following exposure to false information in hypnosis.Journal of Abnormal Psychology,93, 259–265.PubMedCrossRefGoogle Scholar
  15. Sheehan, P. W., &McConkey, K. M. (1982).Hypnosis and experience. The exploration of phenomena and process. Hillsdale, NJ: ErlbaumGoogle Scholar
  16. Sheehan, P., &Tilden, J. (1983) Effects of suggestibility and hypnosis on accurate and distorted retrieval from memory.Journal of Experimental Psychology Learning, Memory. & Cognition,9, 283–293CrossRefGoogle Scholar
  17. Spiro, R. J. (1977). Constructing a theory of reconstructive memory: The state of schema approach In R. C. Anderson, R. J Spiro, & W. E. Montague (Eds.),Schooling and the acquisition of knowledge. Hillsdale, NJ: Erlbaum.Google Scholar
  18. Weinberg, H. I., Wadsworth, J., &Baron, R. S. (1983). Demand and the impact of leading questions on eyewitness testimony.Memory & Cognition,11, 101–104.CrossRefGoogle Scholar

Copyright information

© Psychonomic Society, Inc. 1986

Authors and Affiliations

  • James P. Tousignant
    • 1
  • David Hall
    • 1
  • Elizabeth F. Loftus
    • 1
  1. 1.Department of PsychologyUniversity of WashingtonSeattle

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