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Related Experiment Videos

ROC curves and confidence judgements in recognition memory.

T Van Zandt1

  • 1Department of Psychology, Johns Hopkins University, Baltimore, Maryland 21218, USA.

Journal of Experimental Psychology. Learning, Memory, and Cognition
|June 16, 2000
PubMed
Summary
This summary is machine-generated.

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Recognition memory models assume confidence directly reflects familiarity. Experiments show confidence judgments are not solely based on familiarity, suggesting a more complex information accumulation process in memory.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Research

Background:

  • Current recognition memory models often use a signal detection theory framework.
  • These models assume confidence judgments are directly proportional to familiarity signals.

Purpose of the Study:

  • To test the assumption that confidence in recognition memory is directly scaled from perceived familiarity.
  • To investigate how response bias affects the relationship between confidence and accuracy.

Main Methods:

  • Two experiments were conducted manipulating response bias through stimulus probabilities and payoffs.
  • Confidence-based z-receiver operating characteristic (zROC) curves were analyzed.

Main Results:

  • The shape of zROC curves varied significantly with induced response bias.

Related Experiment Videos

  • This variation indicates that confidence is not a simple scaling of familiarity or likelihood.

    • Conclusions:

    • The findings challenge the direct familiarity-scaling assumption in current recognition memory models.
    • A novel information accumulation model is proposed to explain the observed confidence-accuracy relationship.