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Expertise in clinical pathology: combining the visual and cognitive perspective
Thomas Jaarsma1, Halszka Jarodzka2, Marius Nap3
1Welten Institute, Open University of The Netherlands, P.O. Box 2960, 6401 DL, Heerlen, The Netherlands. thomas.jaarsma@ou.nl.
Advances in Health Sciences Education : Theory and Practice
|February 14, 2015
Summary
Expert pathologists demonstrate superior diagnostic skills by integrating visual and cognitive expertise. Their efficient approach involves lower magnifications and focused hypothesis testing for accurate medical diagnoses.
Area of Science:
- Medical expertise
- Cognitive science
- Visual perception
Background:
- Expertise studies often separate visual and cognitive skills.
- This limits a holistic understanding of expert behavior in medicine.
Purpose of the Study:
- To analyze both visual and cognitive aspects of expertise in clinical pathology.
- To investigate expertise through the constructs of encapsulations, efficiency, and hypothesis testing.
Main Methods:
- 13 experts, 12 intermediates, and 13 novices diagnosed virtual slides.
- Data collected included eye movements, navigation patterns, and verbal protocols.
Main Results:
- Experts utilized lower magnifications, efficient diagnostic paths, and fewer visited areas.
- Intermediates used higher magnifications and longer diagnostic times.
- Novices exhibited detailed searching and lengthy reasoning.
Conclusions:
- Encapsulations and efficiency are key constructs evident in both visual and cognitive expertise.
- This integrated approach provides a more comprehensive understanding of diagnostic expertise.
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