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Psychophysiological correlates of the misinformation effect.

Katja Volz1, Rainer Leonhart2, Rudolf Stark3

  • 1Institute for Frontier Areas of Psychology and Mental Health, Wilhelmstraße 3a, D-79098 Freiburg, Germany.

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|April 13, 2017
PubMed
Summary

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This study investigated false memories and found no physiological differences between true and false memories using the Concealed Information Test. Electrodermal responses, however, indicated subjective importance in memory recall.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psychophysiology

Background:

  • The misinformation effect describes memory impairment following exposure to misleading information.
  • Existing research on the psychophysiology of false memories is limited.
  • The study builds upon Sokolov's orienting reflex and the Concealed Information Test (CIT).

Purpose of the Study:

  • To examine the peripheral psychophysiology of false memories induced by misleading information.
  • To test if autonomic measures differ between true and false memories.
  • To investigate if cued recall reduces the misinformation effect.

Main Methods:

  • Participants watched a video, read a narrative with misleading details, and underwent a cued recall task.
  • The Concealed Information Test (CIT) measured electrodermal responses, heart rate, respiration, and behavior.
Keywords:
Autonomic measuresConcealed information testCued recallElectrodermal activityFalse memoryMisinformation paradigm

Related Experiment Videos

  • Subjective confidence and source monitoring were also assessed.

    • Main Results:

    • The misinformation effect was successfully replicated.
    • Cued recall did not influence the misinformation effect.
    • No significant differences in autonomic measures were found between true and false memories during the CIT.

    Conclusions:

    • Autonomic measures did not differentiate true from false memories in the CIT paradigm.
    • Electrodermal responses correlated with the subjective importance participants assigned to details.
    • Electrodermal responses may serve as a correlate of subjective remembering within a misinformation context.