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Related Experiment Video

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Eye Movement Monitoring of Memory
08:06

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Published on: August 15, 2010

The "memory effect" for repeated radiologic observations.

John T Ryan1, Tamara Miner Haygood, José-Miguel Yamal

  • 1Department of Medical Radiation Services, Brain and Mind Research Institute, The University of Sydney, NSW, Australia. john.ryan@sydney.edu.au

AJR. American Journal of Roentgenology
|November 24, 2011
PubMed
Summary
This summary is machine-generated.

Radiologists showed a memory effect in repeated image reviews, recalling few images accurately. This impacts receiver operating characteristic (ROC) studies, suggesting obvious abnormalities should be excluded.

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Using a Classroom-Based Deese Roediger McDermott Paradigm to Assess the Effects of Imagery on False Memories
08:53

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Area of Science:

  • Radiology
  • Medical Imaging
  • Observer Performance Studies

Background:

  • Memory plays a role in repeated radiologic observation studies.
  • Receiver operating characteristic (ROC) methods are commonly used to evaluate diagnostic performance.

Purpose of the Study:

  • To examine the role of memory in repeated radiologic observation.
  • To evaluate the effect of memory on receiver operating characteristic (ROC) methods.

Main Methods:

  • A two-center observer study with 24 experienced radiologists.
  • Chest radiographs were presented twice, with half the images changed between viewings.
  • Radiologists rated confidence in image inclusion and identified repeated images.

Main Results:

  • Radiologists recalled few repeated images, especially at high confidence levels.
  • Accuracy in identifying repeated images increased as confidence decreased.
  • Images with striking incidental abnormalities were recognized more accurately.

Conclusions:

  • A memory effect was observed in repeated image viewing within a short interval.
  • This effect primarily influences low confidence readings.
  • Excluding images with obvious incidental abnormalities is recommended for reader performance studies.