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Related Experiment Videos

Using ROC curves to test models of recognition memory: the relationship between presentation duration and slope.

E Hirshman1, M Hostetter

  • 1Department of Psychology, University of North Carolina, Chapel Hill 27599-3270, USA. ellioth@email.unc.edu

Memory & Cognition
|May 3, 2000
PubMed
Summary

Increasing presentation duration can decrease the slope of the z-transformed receiver-operating characteristic (ROC) curve, challenging existing memory theories. Further research is needed to understand the conditions influencing this memory strength effect.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psychology

Background:

  • Memory theories predict a decreasing ROC curve slope with increased memory strength.
  • Prior studies have inconsistently supported this prediction.
  • Dual-process theories of recognition memory often rely on this predicted relationship.

Purpose of the Study:

  • To investigate the effect of presentation duration on the slope of the z-transformed ROC curve.
  • To challenge existing assumptions in recognition memory theories.
  • To identify experimental factors influencing the ROC slope and memory strength relationship.

Main Methods:

  • Two experiments were conducted.
  • Participants' memory performance was assessed using signal detection theory.

Related Experiment Videos

  • The z-transformed receiver-operating characteristic (ROC) curve slope was analyzed in relation to item memory strength, manipulated by presentation duration.

    • Main Results:

    • Increasing presentation duration led to a decrease in the slope of the z-transformed ROC curve.
    • This finding contradicts some previous research.
    • The results suggest that presentation duration is a critical factor influencing the ROC slope.

    Conclusions:

    • The observed effect of presentation duration challenges the generality of prior findings and dual-process theories.
    • Understanding the conditions that affect the ROC slope is crucial for refining theories of recognition memory.
    • Further investigation into experimental parameters is necessary to constrain theoretical models of memory.