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Related Experiment Video

Updated: Jun 1, 2026

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory
07:26

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory

Published on: January 31, 2017

Attenuating memory distrust in a repeated checking task.

Mark J Boschen1, K Louise Wilson, Lara J Farrell

  • 1School of Psychology and Griffith Health Institute, Griffith University, Southport, Australia. m.boschen@griffith.edu.au

Behaviour Research and Therapy
|May 31, 2011
PubMed
Summary
This summary is machine-generated.

Repeatedly checking items reduces memory confidence. However, using novel or changing stimuli during checking can prevent this memory distrust, preserving confidence.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Repeated checking is known to decrease memory confidence and detail.
  • This effect is hypothesized to stem from inhibited perceptual processing during checking.

Purpose of the Study:

  • To investigate if novel stimuli can attenuate the reduction in memory confidence caused by repeated checking.
  • To explore the impact of stimulus novelty on memory distrust.

Main Methods:

  • 65 undergraduate students were randomly assigned to three groups.
  • One group repeatedly checked a static virtual stovetop.
  • Another group repeatedly checked a different virtual stovetop.
  • A third group checked a stovetop whose color changed every five trials.

Main Results:

  • As expected, participants repeatedly checking a static stimulus showed reduced memory confidence, vividness, and detail.
  • Crucially, the group exposed to a changing stimulus (color change) exhibited no significant decline in memory confidence.

Conclusions:

  • Novel and distinctive stimulus characteristics can ameliorate memory distrust associated with repeated checking.
  • Findings support and extend the current model of repeated checking and memory confidence.
  • Implications for therapeutic interventions aimed at reducing memory-related anxieties are discussed.