Quantify difference between physicians and medical students in clinical reasoning: evidence from eye-tracking
Lijun Sun1,2, Yao Zhang2, Bin Zheng3
1Department of Neurology, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China.
BMC Medical Education
|April 16, 2025
Summary
Expert physicians focus more on patient data and shift gaze less when reviewing medical cases compared to novices. Eye-tracking reveals behavioral insights for improving health education and clinical reasoning assessment.
Area of Science:
- Medical Education
- Cognitive Science
- Ophthalmology
Background:
- Assessing clinical reasoning in health trainees is crucial but challenging.
- Eye-tracking offers a novel method to study cognitive processes in medical education.
- This study aims to identify behavioral markers for improved health education.
Purpose of the Study:
- To compare the eye movements of medical students (novices) and expert physicians when reviewing a complex neurological case.
- To identify differences in information gathering behaviors between experts and novices.
- To correlate these behaviors with diagnostic performance.
Main Methods:
- Eleven medical students and seventeen expert physicians reviewed a neurological case (text, CT scan, ECG) within 150 seconds.
- Eye movements were tracked, focusing on patient-related information areas (PRIAs).
- Gaze patterns and fixation durations were compared between experts and novices, and correlated with MCQ test results.
Main Results:
- Experts spent significantly more time fixating on PRIAs (42.1%) than novices (29.2%).
- Experts exhibited fewer gaze shifts between different information modalities (Text, CT, ECG) compared to novices.
- Higher fixation rates on PRIAs correlated positively with better MCQ test outcomes.
Conclusions:
- Eye-tracking data reliably reflects physicians' ability to gather patient-relevant information.
- Behavioral differences observed via eye-tracking can inform the development of better clinical reasoning assessments.
- This methodology holds promise for enhancing medical training and education.
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